Narrow Results by:

Subject Specific Filters:

  1. Category:             

  1. Family:                  

Image Specific Filters:

  1. Descriptor:           (show all)

Image Setting:

  1. Country:                

  1. Author:                  (show all)

Sizes Available:

Orientation:

Forestry: Hardwood

Remove Filters: Helotiales(X)

50 Images of 16 Subjects View Subject List View Image Details View Thumbnails

first prev Page: next last Display:

Image Subject Name Scientific Name Description
5468285 ink spot leaf blight Ciborinia whetzelii
5468286 ink spot leaf blight Ciborinia whetzelii
5468287 ink spot leaf blight Ciborinia whetzelii
4215055 sooty-bark canker Encoelia pruinosa canker on aspen
1371103 Pezicula fungus Pezicula cinnamomea Cankers. Göttingen, Germany
1400172 zonate leaf spot Grovesinia pyramidalis
4213047 Cenangium cankers Cenangium spp.
1415184 Ciboria fungus Ciboria batschiana Acorn necrosis. June 20, 2003
1400173 zonate leaf spot Grovesinia pyramidalis
1400143 zonate leaf spot Grovesinia pyramidalis
4213048 Cenangium cankers Cenangium spp. view of infected trees
5424434 Marssonina leaf spots Marssonina spp. Close-up of one spot on lower surface of leaf with a single spore-producing body ("acervulus").
5424435 Marssonina leaf spots Marssonina spp. Close-up of one spot on lower surface of leaf with a single spore-producing body ("acervulus").
5424436 Marssonina leaf spots Marssonina spp. Close-up of one spot on lower surface of leaf with a single spore-producing body ("acervulus").
5424437 Marssonina leaf spots Marssonina spp. Spores of a species of the fungus Marssonina.
1415183 Ciboria fungus Ciboria batschiana Acorn necrosis. June 20, 2003
1400171 zonate leaf spot Grovesinia pyramidalis
2251015 Atropellis canker Atropellis piniphila stained wood with bark removed
1473180 Cenangium canker Cenangium singulare Cenangium singulare (sooty bark disease) followed after bark injury from ax; photo taken 9/1974
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)
1473270 leaf spot Marssonia spp. aspen defoliation by Marssonia sp. and Melampsorella sp.; 9/4/1941
5382971 Ciboria fungus Ciboria batschiana
5368464 Cryptocline fungus Cryptocline betularum Conidia of the fungus Cryptocline betularum.
5368447 Marssonina leaf spots Marssonina spp. Close-up of two spots on underside of the leaf where spore-producing bodies ("pycnidia") are not distinguishable.
5385787 Marssonina leaf spots Marssonina spp. Close-up of one spot on lower surface of leaf with a single spore-producing body ("acervulus").
5385788 Marssonina leaf spots Marssonina spp. Close-up of one spot on lower surface of leaf with a single spore-producing body ("acervulus").
5385789 Marssonina leaf spots Marssonina spp. Close-up of one spot on lower surface of leaf with a single spore-producing body ("acervulus").
5385790 Marssonina leaf spots Marssonina spp. Spores of a species of the fungus Marssonina.
5368445 Marssonina leaf spots Marssonina spp. Upper surface of leaf with gray/white spots and thin brown borders.
5368446 Marssonina leaf spots Marssonina spp. Lower surface of leaf shows leaf spots are darker brown than upper surface appearance.
5368461 Cryptocline fungus Cryptocline betularum Leaves with spots starting out tan and turning gray then white.
5368462 Cryptocline fungus Cryptocline betularum Close-up of leaf spots where in some spots the missing tissue in the center was where the spore-producing body of the fungus was located.
5368463 Cryptocline fungus Cryptocline betularum Close-up of one spore-producing body ("acervulus") is seen in dark-field observation.
1473189 Cenangium cankers Cenangium spp. canker high on bole
1473073 sooty bark Cenangium populinum
1473193 Cenangium cankers Cenangium spp. abundant sprouts replacing older, diseased stems
1473086 Cenangium cankers Cenangium spp. inner bark deteriorates to a black, soot-like mass; 1961
1473072 Cenangium cankers Cenangium spp. infected mature stand
5049031 Blumeriella leaf spot of cherry and plum Blumeriella jaapii
5049032 Blumeriella leaf spot of cherry and plum Blumeriella jaapii
2112099 Ciboria fungus Ciboria batschiana apothecia on a mummified acorn
2112100 Ciboria fungus Ciboria batschiana a mummified acorn with apothecia
1415141 Ciboria fungus Ciboria batschiana Lines on the acorn. Aug. 12, 2002
1371104 Pezicula fungus Pezicula cinnamomea Callusing rings. Göttingen, Germany
1371093 Phloeosporella fungus Phloeosporella padi Hlohovec, Slovakia
1442047 Scleroderris canker of pine and spruce Gremmeniella abietina
2666002 zonate leaf spot Grovesinia pyramidalis early symptoms begins as small gray to light brown spots on the leaflets
4215056 sooty-bark canker Encoelia pruinosa apothecia
4215057 Cenangium limb canker Cenangium ferruginosum characteristic flecking of wood under bark

Page: