Joseph O'Brien's Images
Title: Plant PathologistOrganization: USDA Forest Service
Unit: Forest Health Protection
Country: United States
Joe is a plant pathologist with the U.S. Forest Service in St. Paul, Minnesota. in addition to photography, his major interests include tree diseases in forests, woodlands and urban areas, hazard tree identification and mitigation, and mycology. Joe is a graduate of the University of Michigan (B.S. Forestry and M.S. Forest Pathology) and the University of Minnesota (Ph.D. Plant Pathology), and currently works at the Northern Research Station on the University of Minnesota's St. Paul campus. |
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| 511 Images of 131 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 5047063 | fly agaric | Amanita muscaria | with dime for scale |
| 5027094 | Armillaria root rots | Armillaria spp. | Armillaria spp. often produce abundant quantities of white spores. |
| 1301069 | northern tooth | Climacodon septentrionalis | |
| 1377024 | annosum root disease | Heterobasidion annosum | Small conks ("popcorn conks")of Heterobasidion annosum in the duff at the base of an eastern white pine. |
| 1377028 | eastern pine gall rust | Cronartium quercuum | Several clustered galls |
| 1377014 | carbon balls | Daldinia concentrica | |
| 1198019 | blue stain | Chlorociboria aeruginascens | Saprophytic on well-decayed wood. Stains wood blue-green. The small sporocarps shown here are rarely seen. |
| 1198026 | canker rot | Cerrena unicolor | Thin flexible sporocarps usually have an upper surface covered by algae. |
| 1301065 | northern tooth | Climacodon septentrionalis | |
| 1301031 | puffball | Lycoperdon pyriforme | These puffballs are found on decaying wood or roots. |
| 1301022 | puffball | Lycoperdon pyriforme | Puffball that occurs on dead wood. |
| 1377022 | annosum root disease | Heterobasidion annosum | A large sporocarp on a small (8 cm caliper) white pine. |
| 1301005 | Armillaria root rots | Armillaria spp. | |
| 1301027 | inky cap | Coprinus radians | This fungus produces small mushrooms, and is distinguished by the production of a dense, golden mycelial mat called an ozonium. |
| 1301068 | sulfur shelf | Laetiporus sulphureus | The "semialbinus" variety of the sulphur shelf mushroom is white on the underside, rather than orange |
| 1301061 | thick-walled maze polypore | Daedalea quercina | Robust conk |
| 1198024 | mossy maple polypore | Oxyporus populinus | Many cankers caused by Eutypella parasitica on sugar maple are also colonized by the decay fungus Oxyporus populinus. The latter usually has an upper surface covered with algae, giving it a distinct appearance. |
| 1301048 | white pine blister rust | Cronartium ribicola | Aecial spore stage of white pine blister rust on main stem of a sapling. |
| 1377025 | annosum root disease | Heterobasidion annosum | Conks of Heterobasidion annosum are variable. These are very small conks in the duff at the base of an eastern white pine. |
| 1377031 | false tinder polypore | Phellinus igniarius | |
| 1377009 | cedar-apple rust | Gymnosporangium juniperi-virginianae | Telial stage |
| 1301001 | hemlock varnish shelf | Ganoderma tsugae | Sporocarp |
| 1301004 | hemlock varnish shelf | Ganoderma tsugae | Common heartrot fungus on Eastern hemlock. |
| 1301056 | beech bark canker | Neonectria coccinea var. faginata | Sporocarps, east shore of Lake Michigan, 2000. |
| 1301028 | northern tooth | Climacodon septentrionalis | Overlapping brackets and 1/2" long teeth distinguish this heartrot fungus of maple and other hardwoods. |
| 1198001 | Neonectria canker | Neonectria galligena | Perithecia of one of the fungi involved in the beech bark disease complex. |
| 1198003 | white heartwood rot | Phellinus tremulae | Conks of the white trunk rot fungus |
| 1198018 | turkey tail | Trametes versicolor | Causes a sapwood rot, usually on hardwoods, but occasionally found on conifers. |
| 5053095 | Hypoxylon canker of aspen | Entoleuca mammata | Stroma of Entoleuca mammata on trembling aspen. |
| 5299058 | jelly fungus | Dacryopinax spathularia | The "fan shaped jelly fungus" growing on a rotting log. |
| 5301033 | Agaric mushroom | Macrolepiota procera | Sporocarp of Macrolepiota procera |
| 5301040 | cup mushroom | Humaria hemisphaerica | Sporocarp of Humaria hemisphaerica |
| 5254071 | turkey tail | Trametes versicolor | Sporocarps |
| 5254073 | turkey tail | Trametes versicolor | Sporocarps |
| 5254086 | turkey tail | Trametes versicolor | Sporocarps |
| 5254070 | turkey tail | Trametes versicolor | Sporocarps |
| 5301084 | ferry stool mushroom | Coltricia perennis | Fruiting body |
| 1301070 | annosum root disease | Heterobasidion annosum | |
| 1301030 | fly agaric | Amanita muscaria | |
| 1301066 | birch conk | Piptoporus betulinus | |
| 5054005 | Hypoxylon canker of aspen | Entoleuca mammata | Stroma of Entoleuca mammata on trembling aspen. |
| 1301029 | mock oyster | Phyllotopsis nidulans | |
| 5035046 | tinder fungus | Fomes fomentarius | |
| 1377029 | puffball | Lycoperdon pyriforme | These older puffballs have already released most of their spores through the irregular pores in the sporocarps. |
| 1377012 | Shaggy mane | Coprinus comatus | |
| 1377027 | eastern pine gall rust | Cronartium quercuum | A sporulating gall (the orange-yellow pustules are aecia)nearly girdling a jack pine branch. |
| 5300097 | white-rot fungus | Trametes pubescens | Sporocarps of Trametes pubescens |
| 5301036 | turkey tail | Trametes versicolor | Sporocarps of Trametes versicolr |
| 5301046 | oyster mushroom | Pleurotus spp. | Spocarps of Pleurotus sp. |
| 5301047 | turkey tail | Trametes versicolor | Sporocarps of the turkey tail fungus. |
| 5301053 | rough-stemmed bolete | Leccinum spp. | Sporocarp of a Leccinum sp. |
| 5301059 | Ramaria fungi | Ramaria spp. | Sporocarp of an unidentified species of Ramaria. |
| 5301060 | Pink-tipped coral mushroom | Ramaria botrytis | Sporocarp of Ramaria botrytis. |
| 5254061 | false turkey tail | Stereum ostrea | Sporocarps of Stereum ostrea, the false turkey tail fungus. |
| 5254066 | false turkey tail | Stereum ostrea | Sporocarps of Stereum ostrea, the false turkey tail fungus. |
| 5254068 | false turkey tail | Stereum ostrea | Sporocarps of Stereum ostrea, the false turkey tail fungus. |
| 5254077 | velvet foot | Flammulina velutipes | Sporocarps of Flammulina velutipes, the velvet-foot fungus. |
| 5300093 | waxy cap mushrooms | Hygrocybe spp. | A waxy-cap mushroom. |
| 1377040 | Violet-toothed Polypore | Trichaptum biforme | Commonly found on deciduous slash and logs, the distinguishing characteristic of this fungus is its violet-colored pore surface, which eventually fades to tan or brown. |
| 5058054 | Russula mushroom | Russula spp. | Single light-colored Russula |
| 5059003 | spruce needle rusts | Chrysomyxa spp. | Aecial fruiting bodies |
| 5046083 | Stigmina leaf spot | Stigmina lautii | Sporocarps emerging through the stomata |
| 5046084 | Stigmina leaf spot | Stigmina lautii | Sporocarps emerging through the stomata |
| 5046085 | Stigmina leaf spot | Stigmina lautii | Sporocarps emerging through the stomata |
| 5046086 | Stigmina leaf spot | Stigmina lautii | Sporocarps of Stigmina lautii on green needles |
| 5059022 | wood decay | Schizophyllum commune | Fungus colonizing a sunscald wound |
| 5299019 | Bolete mushrooms | Unidentified bolete | |
| 5055067 | clubmoss | Lycopodiella spp. | CLubmoss with spore-bearing strobili |
| 5045039 | clubmoss | Lycopodiella spp. | Spore bearing strobili of a clubmoss |
| 5299049 | strict coral mushroom | Ramaria stricta | Sporocarp growing on buried, decayed wood. |
| 5299064 | ear pick fungus | Auriscalpium vulgare | Toothed fruiting bodies grow from decaying conifer cones. |
| 5299073 | black morel | Morchella elata | Black morel |
| 5035082 | Stigmina leaf spot | Stigmina lautii | Sporodochia emerging through stomata |
| 5045037 | puffball | Lycoperdon pyriforme | The pear-shaped puffball, on a moss-covered log |
| 5055092 | slime mold | Metatrichia vesparium | Metatrichia vesparia, a slime mold |
| 5299039 | hemlock varnish shelf | Ganoderma tsugae | Sporocarp of Gandoderma tsugae, on a downed hemlock log |
| 5299040 | hemlock varnish shelf | Ganoderma tsugae | Sporocarp of Ganoderma tsugae on a downed hemlock log |
| 5044099 | milk-white toothed polypore | Irpex lacteus | Sporocarps of the slash decay fungus Irpex lacteus |
| 5299012 | white heartwood rot | Phellinus tremulae | Sporocarp of Phellinus tremulae |
| 5299022 | turkey tail | Trametes versicolor | Sporocarp of Trametes versicolor, the turkey-tail fungus |
| 5299028 | Hericium fungus | Hericium americanum | Fruiting cluster of Hericium americanum. |
| 5299041 | rusty gilled polypore | Gloeophyllum sepiarium | Fruiting bodies of Gloeophyllum sepiarium |
| 5299042 | rusty gilled polypore | Gloeophyllum sepiarium | Fruiting body of Gloeophyllum sepiarium |
| 5299045 | abortive Entoloma | Entoloma abortivum | "Aborted" sporocarps of Entoloma abortivum. These sporocarps are produced when E. abortivum parasitizes Armillaria spp. |
| 5299046 | Amanita mushroom | Amanita spp. | Sporocarps of one of the white Amanita species. Identification requires microscopic examination. |
| 5299054 | gilled polypore | Lenzites betulina | Top view of sporocarp. |
| 5299057 | orange jelly | Dacrymyces palmatus | Fruiting bodies with an icy coating. |
| 5299062 | Amanita mushroom | Amanita spp. | One of the white Amanita species. Identification requires microscopic examination. |
| 5299067 | false tinder polypore | Phellinus igniarius | Atypical sporocarps of P. igniarius, resulting when tree fell, changing the orientation of the growing sporocarps. |
| 5299068 | carbon balls | Daldinia concentrica | Fruiting bodies are often called carbon balls or cramp balls. |
| 5299078 | false parasol or green-spored parasol | Chlorophyllum molybdites | A common, beautiful, poisonous mushroom |
| 5299080 | rough-stemmed bolete | Leccinum spp. | Fruting body |
| 5045095 | mock oyster | Phyllotopsis nidulans | Cluster of fruiting bodies |
| 5038091 | annosum root disease | Heterobasidion annosum | Sporocarps of Heterobasidion annosum on white pine |
| 5044095 | Hypoxylon canker | Annulohypoxylon thouarsianum var. thouarsianum | Sporocarps of Hypoxylon thouarsianum |
| 5038099 | clinker polypore | Inonotus obliquus | Sterile conks |
| 5054036 | clinker polypore | Inonotus obliquus | Sterile conk of the falsse tinder fungus |
| 5054094 | artist's conk | Ganoderma applanatum | Ganoderma applanatum on American beech |
| 5055083 | artist's conk | Ganoderma applanatum | Martin MacKenzie standing on a large Ganoderma conk |
| 5056033 | Neonectria canker | Neonectria galligena | Perithecia |
| 5299090 | birch conk | Piptoporus betulinus | A small sporocarp on a fallen birch |
| 5252020 | Dutch elm disease (novi-ulmi) | Ophiostoma novo-ulmi | Fruiting bodies of Ophiostoma novo-ulmi in bark beetle galleries of Scolytus multistriatus on American elm. |
| 5049016 | yellow fairy cups | Bisporella citrina | Sporocarps of Bisporella citrina, a fungus that grows on wood. |
| 5049017 | yellow fairy cups | Bisporella citrina | Sporocarps of Bisporella citrina, a fungus that grows on wood. |
| 5049018 | yellow fairy cups | Bisporella citrina | Sporocarps of Bisporella citrina, a fungus that grows on wood. |
| 5034091 | lichen | Lichens and moss on white spruce branches, following branch mortality | |
| 5034050 | sooty-bark canker | Encoelia pruinosa | Apothecia of Encoelia pruinosa (sexual fruiting bodies) |
| 5034051 | sooty-bark canker | Encoelia pruinosa | Apothecia of Encoelia pruinosa (sexual fruiting bodies) |
| 5034029 | clinker polypore | Inonotus obliquus | Sterile conk of Inonotus obliquus. Also known as "Chaga" by some who think that the conk has medicinal properties |
| 5030092 | cup fungi | Peziza repanda | |
| 5031010 | polypore fungus | Polyporus alveolaris | |
| 5031011 | polypore fungus | Polyporus alveolaris | |
| 5031013 | polypore fungus | Polyporus alveolaris | |
| 5044094 | Hypoxylon canker | Annulohypoxylon thouarsianum var. thouarsianum | |
| 5044002 | canker rot | Cerrena unicolor | |
| 5045001 | king bolete | Boletus edulis | |
| 5053075 | Hericium fungus | Hericium coralloides | |
| 5251043 | Amanita mushroom | Amanita spp. | young sporocarp |
| 5058012 | polypore fungus | Poronidulus conchifer | |
| 5058013 | polypore fungus | Poronidulus conchifer | |
| 5058014 | polypore fungus | Poronidulus conchifer | |
| 5058015 | polypore fungus | Poronidulus conchifer | |
| 5058016 | polypore fungus | Poronidulus conchifer | |
| 5055093 | slime mold | Metatrichia vesparium | |
| 5054066 | resinous polypore | Ischnoderma resinosum | This specimen is somewhat mis-shapen. The fungus usually forms a flatter bracket shape. |
| 5057009 | ash heart rot | Perenniporia fraxinophila | |
| 5049013 | bird's nest fungi | Cyathus striatus | Small sporocarps of a bird's nest fungus |
| 5049014 | bird's nest fungi | Cyathus striatus | Small cluster of bird's nest fungus sporocarps |
| 5049015 | bird's nest fungi | Cyathus striatus | Bird's nest fungi in a nursery next to some pine seedlings. The fungi did not cause any harm to the pines; they grow saprophytically on wood chips. |
| 5047085 | Armillaria root rots | Armillaria spp. | |
| 5047088 | Armillaria root rots | Armillaria spp. | |
| 5047089 | Armillaria root rots | Armillaria spp. | |
| 5047092 | Armillaria root rots | Armillaria spp. | Cluster of sporocarps |
| 5037096 | Neonectria canker | Neonectria galligena | Sporocarps of one of the fungi involved in beech bark disease. |
| 5032080 | Armillaria root rots | Armillaria spp. | |
| 5032081 | Armillaria root rots | Armillaria spp. | Armillaria on roots of declining spruce in Wisconsin. |
| 5028095 | veiled polypore | Cryptoporus volvatus | Sporocarps are completely enclosed when young. The sporocarp ruptures irregularly below, and spores are released. |
| 5030015 | sulfur shelf | Laetiporus sulphureus | Large fruiting of sulpher shelf on the roots of an oak. |
| 5030094 | false tinder polypore | Phellinus igniarius | |
| 5030095 | false tinder polypore | Phellinus igniarius | |
| 5030091 | common dung cup | Peziza vesiculosa | |
| 5031014 | polypore fungus | Polyporus alveolaris | A common decay fungus on slash. The upper surface is tan/brown, and the lower surface is off-white with large, angular pores |
| 5031015 | polypore fungus | Polyporus alveolaris | Upper surface is tan/brown, and lower surface is off-white to tan with large, angular pores. |
| 5031012 | polypore fungus | Polyporus alveolaris | Undersurface of sporocarp has large, angular pores. This fungus appears early in the spring on downed woody debris |
| 5031005 | oyster mushroom | Pleurotus spp. | |
| 5030016 | sulfur shelf | Laetiporus sulphureus | Large fruiting on the roots of an oak. |
| 5030017 | sulfur shelf | Laetiporus sulphureus | Large fruiting on the roots of an oak. |
| 5030018 | sulfur shelf | Laetiporus sulphureus | Large fruiting on the roots of an oak. |
| 5030019 | sulfur shelf | Laetiporus sulphureus | Large fruiting on the roots of an oak. |
| 5030020 | sulfur shelf | Laetiporus sulphureus | Large fruiting on the roots of an oak. |
| 5030021 | sulfur shelf | Laetiporus sulphureus | Large fruiting on the roots of an oak. |
| 5030022 | sulfur shelf | Laetiporus sulphureus | Close up of one lobe of a sporocarp. |
| 5030023 | sulfur shelf | Laetiporus sulphureus | Close up of irregular lobes of sporocarp. |
| 5030024 | sulfur shelf | Laetiporus sulphureus | Close up of lobes of a large sporocarp. |
| 5030025 | sulfur shelf | Laetiporus sulphureus | Close up of orange surface and yellow underside of a large sporocarp |
| 5030033 | lichen | ||
| 5030044 | Neonectria canker | Neonectria galligena | Sporocarps of one of the fungi that are involved in beech bark disease. |
| 5029046 | black witch's butter | Exidia glandulosa | Sporocarps of Exidia on decaying wood |
| 5029047 | black witch's butter | Exidia glandulosa | Mass of sporocarps on fallen tree. |
| 5029048 | black witch's butter | Exidia glandulosa | |
| 5029051 | tinder fungus | Fomes fomentarius | |
| 5029052 | tinder fungus | Fomes fomentarius | Single sporocarp on American beech. |
| 5029053 | red-belted fungus | Fomitopsis pinicola | |
| 5029058 | rusty gilled polypore | Gloeophyllum sepiarium | |
| 5029059 | rusty gilled polypore | Gloeophyllum sepiarium | |
| 5029060 | rusty gilled polypore | Gloeophyllum sepiarium | |
| 5029061 | rusty gilled polypore | Gloeophyllum sepiarium | |
| 5029062 | rusty gilled polypore | Gloeophyllum sepiarium | |
| 5029063 | rusty gilled polypore | Gloeophyllum sepiarium | |
| 5029064 | rusty gilled polypore | Gloeophyllum sepiarium | |
| 5029078 | annosum root disease | Heterobasidion annosum | Conks at the base of a white pine. |
| 5029079 | annosum root disease | Heterobasidion annosum | "Popcorn" conks of Heterobasidion annosum. |
| 5029080 | annosum root disease | Heterobasidion annosum | "Popcorn" conk of Heterobasidion annosum. |
| 5029081 | annosum root disease | Heterobasidion annosum | "Popcorn" conk of Heterobasidion annosum |
| 5029096 | milk-white toothed polypore | Irpex lacteus | Common branch decay fungus. |
| 5029097 | milk-white toothed polypore | Irpex lacteus | Common on decaying branches. |
| 5029098 | milk-white toothed polypore | Irpex lacteus | Toothed pore surface |
| 5027080 | annosum root disease | Heterobasidion annosum | A large sporocarp on a small white pine. |
| 5027081 | annosum root disease | Heterobasidion annosum | A large sporocarp on a small white pine. |
| 5028099 | orange jelly | Dacrymyces palmatus | |
| 5028100 | orange jelly | Dacrymyces palmatus | |
| 5029001 | carbon balls | Daldinia concentrica | |
| 5029002 | carbon balls | Daldinia concentrica | |
| 5028001 | wood ear | Auricularia auricula-judae | This edible fungus is often found on well-rotted wood after rains. |
| 5028002 | wood ear | Auricularia auricula-judae | The edible sporocarps of this fungus are rubbery, swelling with rainfall. |
| 5028003 | wood ear | Auricularia auricula-judae | |
| 5028009 | false tinder polypore | Phellinus igniarius | Phellinus igniarius conk on beech tree with beech bark disease caused by Cryptococcus fagisuga and Neonectria coccinea (Pers.) Fr. |
| 5028016 | black knot | Apiosporina morbosa | Sporocarp of Apiosporina morbosa on black cherry stem. |
| 5028017 | black knot | Apiosporina morbosa | Sporocarps form on galls that often kill the twigs or stems distally from the infection. |
| 5028027 | British soldier lichen | Cladonia cristatella | |
| 5028058 | cedar-apple rust | Gymnosporangium juniperi-virginianae | Telial-stage horns of the cedar-apple rust pathogen. |
| 5028059 | cedar-apple rust | Gymnosporangium juniperi-virginianae | Telial horns of the cedar-apple rust pathogen. |
| 5028060 | cedar-apple rust | Gymnosporangium juniperi-virginianae | Telial-stage horns of the cedar-apple rust pathogen. |
| 5028061 | cedar-apple rust | Gymnosporangium juniperi-virginianae | Telial-stage horns of the cedar-apple rust pathogen. |
| 5028062 | cedar-apple rust | Gymnosporangium juniperi-virginianae | Telial-stage horns of the cedar-apple rust pathogen. |
| 5028063 | cedar-apple rust | Gymnosporangium juniperi-virginianae | Telial-stage horns of the cedar-apple rust pathogen. |
| 5028064 | cedar-apple rust | Gymnosporangium juniperi-virginianae | Telial-stage horns of the cedar-apple rust pathogen. |
| 5028065 | cedar-apple rust | Gymnosporangium juniperi-virginianae | Telial-stage horns of the cedar-apple rust pathogen. |
| 5028066 | cedar-apple rust | Gymnosporangium juniperi-virginianae | Telial-stage horns of the cedar-apple rust pathogen. |
| 5028067 | canker rot | Cerrena unicolor | Sporocarps are usually found with algae growing on the top surface. |
| 5028081 | northern tooth | Climacodon septentrionalis | Sporocarps of a fungus that decays sugar maple. Spores are borne on teeth on the underside of the overlapping shelves. |
| 5028091 | veiled polypore | Cryptoporus volvatus | Sporocarps usually appear only on dead pines. Spores are released through ruptures of the underside of the sporocarp. |
| 5028092 | veiled polypore | Cryptoporus volvatus | Irregular rupturing of the underside of the sporocarp allows spores to be dispersed. |
| 5028093 | veiled polypore | Cryptoporus volvatus | |
| 5028094 | veiled polypore | Cryptoporus volvatus | |
| 5027069 | smooth patch of oak | Aleurodiscus oakesii | |
| 5027070 | smooth patch of oak | Aleurodiscus oakesii | |
| 5047035 | white pine blister rust | Cronartium ribicola | aecia |
| 5047036 | white pine blister rust | Cronartium ribicola | aecia |
| 5059082 | white-rot fungus | Trametes pubescens | |
| 5062042 | Xeromphalina campanella | Xeromphalina campanella | |
| 5031095 | Sirococcus blight of conifers | Sirococcus conigenus | sporocarp |
| 5057099 | birch conk | Piptoporus betulinus | |
| 5057100 | red polypore | Pycnoporus cinnabarinus | |
| 5058028 | toothed jelly fungus | Pseudohydnum gelatinosum | |
| 5058030 | Pink-tipped coral mushroom | Ramaria botrytis | |
| 5057064 | white heartwood rot | Phellinus tremulae | sporocarps |
| 5057067 | sharp-scaly pholiota | Pholiota squarrosoides | |
| 5057025 | canker rot | Phellinus everhartii | |
| 5057026 | canker rot | Phellinus everhartii | |
| 5057027 | canker rot | Phellinus everhartii | |
| 5057028 | canker rot | Phellinus everhartii | |
| 5057029 | canker rot | Phellinus everhartii | |
| 5056031 | Neonectria canker | Neonectria galligena | perithecia |
| 5045066 | beech bark disease | Nectria coccinea | |
| 5045067 | Neonectria canker | Neonectria galligena | perithecia |
| 5039043 | Nectria canker | Nectria galligena | perithecia |
| 5039044 | Neonectria canker | Neonectria galligena | perithecia |
| 5039045 | Neonectria canker | Neonectria galligena | perithecia |
| 5044072 | Scleroderris canker of pine and spruce | Gremmeniella abietina | |
| 5052054 | golden pholiota | Pholiota aurivella | |
| 5054028 | white rot | Inonotus dryophilus | |
| 5053091 | righteous red waxy cap | Hygrocybe coccinea | |
| 5053092 | righteous red waxy cap | Hygrocybe coccinea | |
| 5055021 | rough-stemmed bolete | Leccinum spp. | |
| 5055022 | parasol mushroom | Lepiota spp. | |
| 5051072 | abortive Entoloma | Entoloma abortivum | |
| 5051073 | abortive Entoloma | Entoloma abortivum | |
| 5050066 | thick-walled maze polypore | Daedalea quercina | |
| 5050068 | thick-walled maze polypore | Daedalea quercina | |
| 5050038 | common bird's nest fungi | Crucibulum laeve | |
| 5050044 | bird's nest fungi | Cyathus striatus | 05-16-2005 |
| 5050045 | bird's nest fungi | Cyathus striatus | 05-18-2005 |
| 5049056 | purple-spored puffball | Calvatia cyathiforme | |
| 5049074 | silverleaf | Chondrostereum purpureum | |
| 5049079 | strap coral | Clavariadelphus ligula | |
| 5049080 | strap coral | Clavariadelphus ligula | |
| 5049081 | strap coral | Clavariadelphus ligula | |
| 5049082 | crown coral mushroom | Clavicorona pyxidata | |
| 5049083 | northern tooth | Climacodon septentrionalis | |
| 5049084 | northern tooth | Climacodon septentrionalis | |
| 5049085 | northern tooth | Climacodon septentrionalis | |
| 5049086 | northern tooth | Climacodon septentrionalis | |
| 5049089 | northern tooth | Climacodon septentrionalis | |
| 5049090 | northern tooth | Climacodon septentrionalis | |
| 5042087 | Nectria canker | Nectria spp. | birch bark disease |
| 5048010 | powdery piggyback | Asterophora lycoperdoides | |
| 5048011 | powdery piggyback | Asterophora lycoperdoides | |
| 5048012 | powdery piggyback | Asterophora lycoperdoides | |
| 5033036 | Boletus mushroom | Boletus spp. | |
| 5047052 | cleft-foot amanita | Amanita brunnescens | |
| 5047053 | tawny grisette | Amanita fulva | |
| 5047054 | fly agaric | Amanita muscaria | |
| 5047055 | fly agaric | Amanita muscaria | |
| 5047056 | fly agaric | Amanita muscaria | |
| 5047057 | fly agaric | Amanita muscaria | |
| 5047058 | fly agaric | Amanita muscaria | |
| 5047059 | fly agaric | Amanita muscaria | |
| 5047060 | fly agaric | Amanita muscaria | |
| 5047061 | fly agaric | Amanita muscaria | |
| 5047062 | fly agaric | Amanita muscaria | mature and immature |
| 5042075 | Armillaria root rots | Armillaria spp. | |
| 5047082 | abortive Entoloma | Entoloma abortivum | |
| 5037014 | Violet-toothed Polypore | Trichaptum biforme | |
| 5037015 | Violet-toothed Polypore | Trichaptum biforme | |
| 5037016 | Violet-toothed Polypore | Trichaptum biforme | |
| 5037017 | Violet-toothed Polypore | Trichaptum biforme | |
| 5037018 | Violet-toothed Polypore | Trichaptum biforme | |
| 5047064 | destroying angel | Amanita virosa | |
| 5047065 | destroying angel | Amanita virosa | |
| 5032007 | wood decay | Stereum spp. | |
| 5032008 | wood decay | Stereum spp. | |
| 5032009 | wood decay | Stereum spp. | |
| 5032010 | wood decay | Stereum spp. | |
| 5032011 | wood decay | Stereum spp. | |
| 5032012 | wood decay | Stereum spp. | |
| 5032021 | turkey tail | Trametes versicolor | |
| 5032030 | Violet-toothed Polypore | Trichaptum biforme | |
| 5032031 | Violet-toothed Polypore | Trichaptum biforme | |
| 5032032 | Violet-toothed Polypore | Trichaptum biforme | |
| 5032033 | Violet-toothed Polypore | Trichaptum biforme | |
| 5032034 | Violet-toothed Polypore | Trichaptum biforme | |
| 5032035 | Violet-toothed Polypore | Trichaptum biforme | |
| 5032036 | Violet-toothed Polypore | Trichaptum biforme | |
| 5031006 | oyster mushroom | Pleurotus ostreatus | |
| 5031079 | wood decay | Schizophyllum commune | |
| 5031081 | wood decay | Schizophyllum commune | |
| 5031082 | wood decay | Schizophyllum commune | |
| 5031083 | wood decay | Schizophyllum commune | |
| 5057088 | birch conk | Piptoporus betulinus | |
| 5057089 | birch conk | Piptoporus betulinus | |
| 5057092 | oyster mushroom | Pleurotus spp. | |
| 5057093 | oyster mushroom | Pleurotus spp. | |
| 5057094 | oyster mushroom | Pleurotus ostreatus | |
| 5057095 | oyster mushroom | Pleurotus ostreatus | |
| 5057096 | oyster mushroom | Pleurotus ostreatus | |
| 5057097 | oyster mushroom | Pleurotus ostreatus | |
| 5058031 | Ramaria fungi | Ramaria spp. | |
| 5058032 | Ramaria fungi | Ramaria spp. | |
| 5058033 | Ramaria fungi | Ramaria spp. | |
| 5058053 | short-stemmed russula | Russula brevipes | |
| 5059083 | turkey tail | Trametes versicolor | |
| 5059084 | turkey tail | Trametes versicolor | |
| 5059085 | turkey tail | Trametes versicolor | |
| 5059086 | turkey tail | Trametes versicolor | |
| 5059087 | turkey tail | Trametes versicolor | |
| 5060097 | witch's butter | Tremella mesenterica | |
| 5060098 | Violet-toothed Polypore | Trichaptum biforme | |
| 5060099 | Violet-toothed Polypore | Trichaptum biforme | |
| 5062043 | black root rot | Xylaria polymorpha | |
| 5062044 | black root rot | Xylaria polymorpha | |
| 5058059 | wood decay | Schizophyllum commune | |
| 5058060 | wood decay | Schizophyllum commune | |
| 5058061 | wood decay | Schizophyllum commune | |
| 5057084 | mock oyster | Phyllotopsis nidulans | |
| 5057085 | mock oyster | Phyllotopsis nidulans | |
| 5057087 | birch conk | Piptoporus betulinus | |
| 5057065 | yellow cap fungi | Pholiota spp. | |
| 5057066 | yellow cap fungi | Pholiota spp. | |
| 5056098 | mossy maple polypore | Oxyporus populinus | |
| 5056099 | mossy maple polypore | Oxyporus populinus | |
| 5055023 | Cytospora canker of spruce | Valsa kunzei | |
| 5055044 | common puffball | Lycoperdon perlatum | |
| 5055045 | common puffball | Lycoperdon perlatum | |
| 5055046 | puffball | Lycoperdon pyriforme | |
| 5055047 | puffball | Lycoperdon pyriforme | |
| 5055048 | puffball | Lycoperdon pyriforme | |
| 5055049 | puffball | Lycoperdon pyriforme | |
| 5055050 | puffball | Lycoperdon pyriforme | |
| 5055051 | puffball | Lycoperdon pyriforme | |
| 5055052 | puffball | Lycoperdon pyriforme | |
| 5055053 | puffball | Lycoperdon pyriforme | |
| 5055054 | puffball | Lycoperdon pyriforme | |
| 5055055 | puffball | Lycoperdon pyriforme | |
| 5055056 | puffball | Lycoperdon pyriforme | |
| 5055057 | puffball | Lycoperdon pyriforme | |
| 5055058 | puffball | Lycoperdon pyriforme | |
| 5055059 | puffball | Lycoperdon pyriforme | |
| 5055060 | puffball | Lycoperdon pyriforme | |
| 5055061 | puffball | Lycoperdon pyriforme | |
| 5055062 | puffball | Lycoperdon pyriforme | |
| 5055063 | puffball | Lycoperdon pyriforme | |
| 5055064 | puffball | Lycoperdon pyriforme | |
| 5055065 | puffball | Lycoperdon pyriforme | |
| 5055066 | puffball | Lycoperdon pyriforme | |
| 5054096 | lackluster laccaria | Laccaria laccata | |
| 5054097 | sulfur shelf | Laetiporus sulphureus | |
| 5054098 | sulfur shelf | Laetiporus sulphureus | |
| 5054099 | sulfur shelf | Laetiporus sulphureus | |
| 5054100 | sulfur shelf | Laetiporus sulphureus | |
| 5055001 | sulfur shelf | Laetiporus sulphureus | |
| 5055002 | sulfur shelf | Laetiporus sulphureus | |
| 5055003 | sulfur shelf | Laetiporus sulphureus | |
| 5055004 | sulfur shelf | Laetiporus sulphureus | |
| 5055020 | birch bolete | Leccinum scabrum scabrum | |
| 5054037 | clinker polypore | Inonotus obliquus | |
| 5054038 | clinker polypore | Inonotus obliquus | |
| 5054039 | clinker polypore | Inonotus obliquus | |
| 5054040 | clinker polypore | Inonotus obliquus | |
| 5054041 | clinker polypore | Inonotus obliquus | |
| 5054042 | clinker polypore | Inonotus obliquus | |
| 5054043 | Tomentosus root disease | Onnia tomentosus | |
| 5054044 | Tomentosus root disease | Onnia tomentosus | |
| 5054045 | Tomentosus root disease | Onnia tomentosus | |
| 5054064 | milk-white toothed polypore | Irpex lacteus | |
| 5054065 | resinous polypore | Ischnoderma resinosum | |
| 5055098 | morel | Morchella spp. | |
| 5057017 | Schweinitzii root and butt disease | Phaeolus schweinitzii | |
| 5057018 | Schweinitzii root and butt disease | Phaeolus schweinitzii | |
| 5057019 | Schweinitzii root and butt disease | Phaeolus schweinitzii | |
| 5057020 | Schweinitzii root and butt disease | Phaeolus schweinitzii | |
| 5057021 | Schweinitzii root and butt disease | Phaeolus schweinitzii | |
| 5057022 | Schweinitzii root and butt disease | Phaeolus schweinitzii | |
| 5057023 | Schweinitzii root and butt disease | Phaeolus schweinitzii | |
| 5057024 | Schweinitzii root and butt disease | Phaeolus schweinitzii | |
| 5057030 | false tinder polypore | Phellinus igniarius | |
| 5057033 | false tinder polypore | Phellinus igniarius | |
| 5057034 | red heart of pine | Phellinus pini | |
| 5057035 | heart rot | Phellinus rimosus | |
| 5057037 | robustus conk | Phellinus robustus | |
| 5057038 | robustus conk | Phellinus robustus | |
| 5057039 | white heartwood rot | Phellinus tremulae | |
| 5057040 | white heartwood rot | Phellinus tremulae | |
| 5057042 | white heartwood rot | Phellinus tremulae | |
| 5057049 | white heartwood rot | Phellinus tremulae | |
| 5057050 | white heartwood rot | Phellinus tremulae | |
| 5057051 | white heartwood rot | Phellinus tremulae | |
| 5057052 | white heartwood rot | Phellinus tremulae | |
| 5057055 | white heartwood rot | Phellinus tremulae | |
| 5030096 | false tinder polypore | Phellinus igniarius | |
| 5030097 | false tinder polypore | Phellinus igniarius | |
| 5030098 | false tinder polypore | Phellinus igniarius | |
| 5045038 | common puffball | Lycoperdon perlatum | |
| 5045092 | red heart of pine | Phellinus pini | |
| 5045093 | yellow cap fungi | Pholiota spp. | |
| 5045094 | scaly pholiota | Pholiota squarrosa | |
| 5035047 | false tinder polypore | Phellinus igniarius | |
| 5044056 | hemlock varnish shelf | Ganoderma tsugae | |
| 5052073 | false morel | Gyromitra esculenta | |
| 5054030 | hispidus canker | Inonotus hispidus | |
| 5054031 | clinker polypore | Inonotus obliquus | |
| 5054032 | clinker polypore | Inonotus obliquus | |
| 5054033 | clinker polypore | Inonotus obliquus | |
| 5054034 | clinker polypore | Inonotus obliquus | |
| 5054035 | clinker polypore | Inonotus obliquus | |
| 5053076 | lion's mane hericium | Hericium erinaceus | |
| 5053080 | annosum root disease | Heterobasidion annosum | |
| 5053081 | annosum root disease | Heterobasidion annosum | |
| 5053082 | annosum root disease | Heterobasidion annosum | |
| 5053083 | annosum root disease | Heterobasidion annosum | |
| 5053085 | annosum root disease | Heterobasidion annosum | |
| 5053086 | annosum root disease | Heterobasidion annosum | |
| 5051096 | black witch's butter | Exidia glandulosa | |
| 5051097 | black witch's butter | Exidia glandulosa | |
| 5052003 | velvet foot | Flammulina velutipes | |
| 5052012 | tinder fungus | Fomes fomentarius | |
| 5052013 | red-belted fungus | Fomitopsis pinicola | |
| 5052031 | artist's conk | Ganoderma applanatum | |
| 5052032 | artist's conk | Ganoderma applanatum | |
| 5052033 | artist's conk | Ganoderma applanatum | |
| 5052034 | artist's conk | Ganoderma applanatum | |
| 5052035 | artist's conk | Ganoderma applanatum | |
| 5052036 | artist's conk | Ganoderma applanatum | |
| 5052037 | artist's conk | Ganoderma applanatum | |
| 5052038 | artist's conk | Ganoderma applanatum | |
| 5052039 | artist's conk | Ganoderma applanatum | |
| 5052040 | artist's conk | Ganoderma applanatum | |
| 5052041 | artist's conk | Ganoderma applanatum | |
| 5052042 | artist's conk | Ganoderma applanatum | |
| 5052043 | artist's conk | Ganoderma applanatum | |
| 5052053 | rusty gilled polypore | Gloeophyllum sepiarium | |
| 5050029 | inky cap | Coprinus radians | |
| 5050030 | destroying angel | Amanita virosa | |
| 5050031 | destroying angel | Amanita virosa | |
| 5049058 | chanterelle | Cantharellus cibarius | |
| 5049065 | canker rot | Cerrena unicolor | |
| 5049066 | canker rot | Cerrena unicolor | |
| 5049073 | blue stain | Chlorociboria aeruginascens | |
| 5051081 | Eutypella canker | Eutypella parasitica | |
| 5050069 | carbon balls | Daldinia concentrica | |
| 5050070 | carbon balls | Daldinia concentrica | |
| 5050048 | Cyclaneusma needle cast | Cyclaneusma minus | |
| 5050065 | orange jelly | Dacrymyces palmatus | |
| 5044057 | hemlock varnish shelf | Ganoderma tsugae | |
| 5044017 | bird's nest fungi | Cyathus striatus | |
| 5044054 | artist's conk | Ganoderma applanatum | |
| 5038089 | annosum root disease | Heterobasidion annosum | |
| 5038090 | annosum root disease | Heterobasidion annosum | |
| 5043089 | yellow spindle coral | Clavulinopsis fusiformis | |
| 5043100 | inky cap | Coprinus quadrifidus | |
| 5045004 | sulfur shelf | Laetiporus sulphureus | |
| 5045005 | sulfur shelf | Laetiporus sulphureus | |
| 5033045 | crested coral | Clavulina coralloides | |
| 5033046 | crested coral | Clavulina coralloides | |
| 5033048 | crested coral | Clavulina coralloides | |
| 5033049 | Shaggy mane | Coprinus comatus | |
| 5033050 | Shaggy mane | Coprinus comatus | |
| 5033051 | Shaggy mane | Coprinus comatus | |
| 5033052 | Shaggy mane | Coprinus comatus | |
| 5033055 | Shaggy mane | Coprinus comatus | |
| 5033056 | Shaggy mane | Coprinus comatus | |
| 5033057 | Shaggy mane | Coprinus comatus | |
| 5033058 | Shaggy mane | Coprinus comatus | |
| 5033059 | Shaggy mane | Coprinus comatus | |
| 5033064 | black trumpet | Craterellus fallax | |
| 5033065 | black trumpet | Craterellus fallax | |
| 5033066 | black trumpet | Craterellus fallax | |
| 5033068 | orange jelly | Dacrymyces palmatus | |
| 5033069 | orange jelly | Dacrymyces palmatus | |
| 5033070 | thick-walled maze polypore | Daedalea quercina | |
| 5034008 | artist's conk | Ganoderma applanatum | |
| 5034009 | artist's conk | Ganoderma applanatum | |
| 5034010 | artist's conk | Ganoderma applanatum | |
| 5034011 | artist's conk | Ganoderma applanatum | |
| 5043055 | cedar-apple rust | Gymnosporangium juniperi-virginianae | |
| 5043056 | cedar-apple rust | Gymnosporangium juniperi-virginianae | |
| 5043057 | cedar-apple rust | Gymnosporangium juniperi-virginianae | |
| 5043059 | cedar-apple rust | Gymnosporangium juniperi-virginianae | |
| 5043061 | cedar-apple rust | Gymnosporangium juniperi-virginianae | |
| 5043062 | cedar-apple rust | Gymnosporangium juniperi-virginianae | |
| 5033023 | yellow fairy cups | Bisporella citrina | |
| 5042071 | destroying angel | Amanita virosa | |
| 1377013 | veiled polypore | Cryptoporus volvatus | |
| 1301025 | red-belted fungus | Fomitopsis pinicola | |
| 1198014 | red-belted fungus | Fomitopsis pinicola | |
| 1198015 | canker rot | Cerrena unicolor | The tops of the thin, flexible sporocarps are usually covered with algae. Causes a sapwood rot or canker rot on hardwoods. |
| 1198016 | rusty gilled polypore | Gloeophyllum sepiarium | This fungus has gills on the bottom surface of the sporocarp. Casues a brown rot in conifers. |
| 1198017 | Schweinitzii root and butt disease | Phaeolus schweinitzii | These young sporocarps have a thick yellow rim, which will turn brown as the fungus ages. Causes a brown root and butt rot in conifers. |
| 1198025 | northern tooth | Climacodon septentrionalis | Causes a spongy white rot in hardwoods, especially maples. |
| 1198022 | tinder fungus | Fomes fomentarius | |
| 1198031 | red-belted fungus | Fomitopsis pinicola | These are young fruiting bodies, which harden and turn darker with age. |
| 1301006 | mock oyster | Phyllotopsis nidulans | Small fruiting bodies (about 1" across) fruiting on dead wood |
| 1301023 | Schweinitzii root and butt disease | Phaeolus schweinitzii | Phaeolus schweinitzii (Velvet top fungus) causes a brown cubical rot in the upper roots and lower bole of many conifer species. |
| 1301024 | canker rot | Cerrena unicolor | Common canker-rot fungus occurring on hardwoods. Sporocarps are often covered with green algae, giving them a distinct appearance. |
| 1301026 | red-belted fungus | Fomitopsis pinicola | |
| 1301057 | sulfur shelf | Laetiporus sulphureus | When L. sulphureus fruits on oaks, it indicates that severe decay is present |
| 1301058 | turkey tail | Trametes versicolor | Turkey tail fungus |
| 1301067 | canker rot | Cerrena unicolor | Sporocarps on rotting wood. |
| 1301071 | annosum root disease | Heterobasidion annosum | |
| 1301062 | Schweinitzii root and butt disease | Phaeolus schweinitzii | |
| 1301063 | sulfur shelf | Laetiporus sulphureus |
