Joseph O'Brien's Images @ Forestry Images

Joseph O'Brien's Images

Title: Plant Pathologist
Organization: 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.

Remove Filters: Fruiting Bodies^(X) Miscellaneous Forestry^(X)

176 Images of 81 Subjects

View Subject List

View Image Details

View Thumbnails

Subject	Scientific Name	Images
abortive Entoloma	Entoloma abortivum	4
Agaric mushroom	Macrolepiota procera	1
Amanita mushroom	Amanita spp.	3
Armillaria root rots	Armillaria spp.	3
ash heart rot	Perenniporia fraxinophila	1
birch conk	Piptoporus betulinus	1
bird's nest fungi	Cyathus striatus	3
black morel	Morchella elata	1
black trumpet	Craterellus fallax	3
black witch's butter	Exidia glandulosa	2
blue stain	Chlorociboria aeruginascens	1
Bolete mushrooms		1
Boletus mushroom	Boletus spp.	1
British soldier lichen	Cladonia cristatella	1
canker rot	Cerrena unicolor	2
canker rot	Phellinus everhartii	3
carbon balls	Daldinia concentrica	3
cedar-apple rust	Gymnosporangium juniperi-virginianae	8
cleft-foot amanita	Amanita brunnescens	1
clubmoss	Lycopodiella spp.	2
common bird's nest fungi	Crucibulum laeve	1
common dung cup	Peziza vesiculosa	1
crested coral	Clavulina coralloides	3
crown coral mushroom	Clavicorona pyxidata	1
cup fungi	Peziza repanda	1
cup mushroom	Humaria hemisphaerica	1
destroying angel	Amanita virosa	1
ear pick fungus	Auriscalpium vulgare	1
false parasol or green-spored parasol	Chlorophyllum molybdites	1
false tinder polypore	Phellinus igniarius	1
false turkey tail	Stereum ostrea	3
ferry stool mushroom	Coltricia perennis	1
fly agaric	Amanita muscaria	11
gilled polypore	Lenzites betulina	1
golden pholiota	Pholiota aurivella	1
hemlock varnish shelf	Ganoderma tsugae	2
Hericium fungus	Hericium americanum	1
Hericium fungus	Hericium coralloides	1
Hypoxylon canker	Annulohypoxylon thouarsianum var. thouarsianum	1
inky cap	Coprinus quadrifidus	1
jelly fungus	Dacryopinax spathularia	1
king bolete	Boletus edulis	1
lichen		1
milk-white toothed polypore	Irpex lacteus	4
mock oyster	Phyllotopsis nidulans	2
northern tooth	Climacodon septentrionalis	6
orange jelly	Dacrymyces palmatus	4
oyster mushroom	Pleurotus spp.	1
parasol mushroom	Lepiota spp.	1
Pink-tipped coral mushroom	Ramaria botrytis	2
polypore fungus	Polyporus alveolaris	3
polypore fungus	Poronidulus conchifer	5
powdery piggyback	Asterophora lycoperdoides	3
puffball	Lycoperdon pyriforme	4
purple-spored puffball	Calvatia cyathiforme	1
Ramaria fungi	Ramaria spp.	1
red polypore	Pycnoporus cinnabarinus	1
resinous polypore	Ischnoderma resinosum	1
righteous red waxy cap	Hygrocybe coccinea	2
rough-stemmed bolete	Leccinum spp.	3
Russula mushroom	Russula spp.	1
rusty gilled polypore	Gloeophyllum sepiarium	2
Shaggy mane	Coprinus comatus	10
sharp-scaly pholiota	Pholiota squarrosoides	1
slime mold	Metatrichia vesparium	2
strap coral	Clavariadelphus ligula	2
strict coral mushroom	Ramaria stricta	1
tawny grisette	Amanita fulva	1
thick-walled maze polypore	Daedalea quercina	3
toothed jelly fungus	Pseudohydnum gelatinosum	1
turkey tail	Trametes versicolor	7
veiled polypore	Cryptoporus volvatus	4
velvet foot	Flammulina velutipes	1
Violet-toothed Polypore	Trichaptum biforme	1
waxy cap mushrooms	Hygrocybe spp.	1
white heartwood rot	Phellinus tremulae	2
white rot	Inonotus dryophilus	1
white-rot fungus	Trametes pubescens	2
Xeromphalina campanella	Xeromphalina campanella	1
yellow fairy cups	Bisporella citrina	4
yellow spindle coral	Clavulinopsis fusiformis	1

Narrow Results by:

Subject Specific Filters:

Type:

Category:

Order: (show all)

Image Specific Filters:

Image Setting:

Sizes Available:

Orientation:

Joseph O'Brien's Images