 Hazel woodwart fungus (Hypoxylon fuscum) on a hazelnut stem on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Jelly fungus Exidia nigricans on wood in a hazelnut forest on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Close-up of hazel woodwart fungus (Hypoxylon fuscum) on a hazelnut stem on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Young hazel woodwart fungus (Hypoxylon fuscum) on a hazelnut stem on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Texture of hazel woodwart fungus (Hypoxylon fuscum) on a hazelnut stem on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Fungus Biscogniauxia repanda on a dry stem of hazelnut(?) in a hazelnut forest on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Close-up of fungus Biscogniauxia repanda on a dry stem of hazelnut(?) in a hazelnut forest on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Top view of fungus Biscogniauxia repanda on a dry stem of hazelnut(?) in a hazelnut forest on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Side view of fungus Biscogniauxia repanda on a dry stem of hazelnut(?) in a hazelnut forest on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Black formations of fungus Biscogniauxia repanda on a dry stem of hazelnut(?) in a hazelnut forest on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Some bracket polypore mushroom on rotting wood in a hazelnut forest on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Close-up of spring hazelcup fungus (Encoelia furfuracea) in a hazelnut forest on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Dried cups of spring hazelcup fungus (Encoelia furfuracea) in a hazelnut forest on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Fungus Biscogniauxia repanda on wood of hazelnut(?) on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Corticioid fungus Peniophora incarnata on a hazelnut stem of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Spring hazelcup fungus (Encoelia furfuracea) on a dry broken hazelnut bush on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Spring hazelcup fungus (Encoelia furfuracea) on a broken hazelnut bush on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Cluster of spring hazelcup fungus (Encoelia furfuracea) on a dry broken hazelnut bush on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Lungwort (Pulmonaria obscura, Russian name Medunitsa) in a hazelnut forest on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Pore surface of a bracket polypore mushroom in a hazelnut forest on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Bracket polypore mushroom on a fallen tree in a hazelnut forest on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Blue flower of Hepatica (Pechonochnitsa in Russian) in a hazelnut forest on a slope of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Fungus Biscogniauxia repanda on a dry stem of hazelnut(?) on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Ascomycete fungus Encoelia furfuracea on a dry broken hazelnut on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Details of fungus Biscogniauxia repanda on a dry stem of hazelnut(?) on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Upper surface of fungus Biscogniauxia repanda on a dry stem of hazelnut(?) on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Pattern of birch blackhead (Diatrypella favacea) on a dry hazelnut on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Close-up of birch blackhead (Diatrypella favacea) on a dry hazelnut on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Birch blackhead (Diatrypella favacea) growing through bark on a dry hazelnut on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Small troop mushrooms Xeromphalina kauffmanii on an old mossy stump of a large tree on a slope without forest on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Cross-veined troop mushrooms Xeromphalina kauffmanii on an old mossy stump of a large tree on a slope without forest on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Cross-veined troop mushrooms Xeromphalina kauffmanii in moss on an old rotted stump of a large tree on a slope without forest on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Yellow brain fungus (Tremella mesenterica) on a dry tree on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Spring hazelcup fungus (Encoelia furfuracea) together with birch blackhead (Diatrypella favacea) on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Blue flowers of Hepatica (Pechonochnitsa in Russian) on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Scarlet elfcup mushrooms (Sarcoscypha austriaca) at the foot of Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Close-up of a blue flower of Hepatica (Pechonochnitsa in Russian) on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
 Hazelnut forest on a slope of a hill in Orekhovo, 40 miles north from Saint Petersburg. Russia, March 18, 2017
 Duderhof Train Station, south from Saint Petersburg. Russia, May 9, 2021
 Corticioid fungus Hyphoderma setigerum on hazelnut in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, March 17, 2017
 Corticioid fungus Hyphoderma setigerum on a dry branch of hazelnut in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, March 17, 2017
 Yellow and dark-brown Hypoxylon rubiginosum(?) corticioid fungus on underside of a piece of wood on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, June 9, 2018
 Hazel woodwart fungus (Hypoxylon fuscum) on a dry alder in Tarkhovka Park, west from Saint Petersburg. Russia, May 10, 2021
 Back lit leaves of hazelnut in Sablino, south from Saint Petersburg. Russia, May 21, 2011
 Hazel woodwart fungus (Hypoxylon fuscum) on bark of a dry alder in Tarkhovka Park, west from Saint Petersburg. Russia, May 10, 2021
 Some corticioid (crust) fungus on underside of a spruce log in a forest near Okhta River in Toksovo, north from Saint Petersburg. Russia, May 16, 2021
 Beech woodwart fungus (Hypoxylon fragiforme) together with some white corticioid fungus on a thin dry standing tree on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, September 28, 2019
 Corticioid mushroom Cerioporus mollis (Datronia mollis) on a dry branch of hazelnut in Orekhovo, 40 miles north from Saint Petersburg. Russia, March 18, 2017
 Soft white corticioid fungus Trechispora mollusca(?) on wood covered by moss in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 Corticioid (crust) fungus Cylindrobasidium evolvens on a fallen tree in a spruce forest near Dibuny, north-west from Saint Petersburg, Russia, May 5, 2021
 Velvety brown corticioid fungus Virgariella (mitosporic stage of Hypoxylon fuscum) on a fallen twig at Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, March 13, 2021
 Wood hedgehog mushrooms (Hydnum repandum) in a dark spruce forest on a slope of Volchya River in Petiayarvi, 50 miles north from Saint Petersburg. Russia, August 30, 2017
 Close-up of corticioid (crust) fungus Cylindrobasidium evolvens on a fallen tree in a spruce forest near Dibuny, north-west from Saint Petersburg, Russia, May 5, 2021
 Margin of corticioid (crust) fungus Cylindrobasidium evolvens on a fallen tree in a spruce forest near Dibuny, north-west from Saint Petersburg, Russia, May 5, 2021
 Weathered wood on the slope of a limestone hill in Maszhabiya (Al Mashabiya) Reserve near Abu Samra. Southern Qatar, April 1, 2016
 Spores of brown corticioid fungus growing over Hypoxylon from a fallen oak collected in Sam Houston National Forest a day before. Texas, February 19, 2023
 Growth pattern of corticioid (crust) fungus Cylindrobasidium evolvens on a fallen tree in a spruce forest near Dibuny, north-west from Saint Petersburg, Russia, May 5, 2021
 Bumpy texture of corticioid (crust) fungus Cylindrobasidium evolvens on a fallen tree in a spruce forest near Dibuny, north-west from Saint Petersburg, Russia, May 5, 2021
 Spores (in KOH) of fungus Hypoxylon rubiginosum from a tiny black dot on wood, collected a day before in Sam Houston National Forest near Richards. Texas, April 3, 2023
 Candlesnuff fungus (Xylaria hypoxylon) on rotting wood on Richards Loop Trail in Sam Houston National Forest. Texas, April 20, 2020
 Gelatinous droplets of a fungus Hypocrea gelatinosa on rotting wood near Lisiy Nos, south from Saint Petersburg. Russia, August 17, 2018
 Cup fungus Peziza on a stump in a forest near a pond south from Beloostrov at Eco Trail Sestroretskoye Swamp near Saint Petersburg. Russia, May 27, 2021
 Wrinked corticioid fungus on a thin tree in Sosnovka Park. Saint Petersburg, Russia, May 8, 2021
 Some corticioid (crust) fungus under a spruce log near Dibuny, north-west from Saint Petersburg, Russia, May 5, 2021
 Bright brown corticioid fungus growing over black Hypoxylon or Biscogniauxia crust on a fallen oak on Richards Loop Trail in Sam Houston National Forest. Texas, February 18, 2023
 Close-up of brown corticioid fungus growing over black Hypoxylon or Biscogniauxia crust on a fallen oak on Richards Loop Trail in Sam Houston National Forest. Texas, February 18, 2023
 Brown corticioid fungus Odontia fibrosa (Tomentella fibrosa) on rotting oak(?) wood on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, November 19, 2023
 Some white corticioid fungus on a fallen tree in wet area in Sosnovka Park. Saint Petersburg, Russia, May 8, 2021
 Close-up of some corticioid (crust) fungus under a spruce log near Dibuny, north-west from Saint Petersburg, Russia, May 5, 2021
 Texture of wrinked corticioid fungus on a thin tree in Sosnovka Park. Saint Petersburg, Russia, May 8, 2021
 Corticioid (crust) fungus Cylindrobasidium evolvens and tiny cup-shaped cyphelloid fungus Merismodes anomala forming packed growths on a fallen spruce tree near Dibuny, north-west from Saint Petersburg, Russia, May 5, 2021
 Close-up of some corticioid (crust) fungus on rotting wood of a deciduous tree with termite holes on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, December 29, 2021
 Texture of black corticioid fungus Sphaeria subiculata (Rosellinia subiculata)(?) on wood of a broadleaf tree on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, January 14, 2023
 Beech woodwart fungus (Hypoxylon fragiforme) on wood on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, January 23, 2022
 Corticioid fungus Steccherinum fimbriatum on underside of a fallen tree in Sosnovka Park. Saint Petersburg, Russia, May 8, 2021
 Wrinked corticioid fungus with water droplets on a thin tree in Sosnovka Park. Saint Petersburg, Russia, May 8, 2021
 Texture of some white corticioid fungus on a fallen tree in wet area in Sosnovka Park. Saint Petersburg, Russia, May 8, 2021
 Beech woodwart fungus (Hypoxylon fragiforme) together and some white corticioid fungi on a thin dry standing tree on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, September 28, 2019
 Texture of corticioid fungus Steccherinum fimbriatum on underside of a fallen tree in Sosnovka Park. Saint Petersburg, Russia, May 8, 2021
 Close-up of corticioid fungus Steccherinum fimbriatum on underside of a fallen tree in Sosnovka Park. Saint Petersburg, Russia, May 8, 2021
 Corticioid fungus Peniophora polygonia on a fallen twig of alder near Dibuny, north-west from Saint Petersburg, Russia, May 5, 2021
 Poroid crust fungus Xanthoporia radiata (Mensularia radiata) taken from a hazelnut branch in Orekhovo, 40 miles north from Saint Petersburg. Russia, March 18, 2017
 Poroid crust fungus Xanthoporia radiata (Mensularia radiata) on a dry branch of hazelnut in Orekhovo, 40 miles north from Saint Petersburg. Russia, March 18, 2017
 Bi-septate spores of endophyte fungus Lylea tetracoila (Heteroconium tetracoilum)(?) from a tiny black dot on wood near crust of Hypoxylon rubiginosum, collected a day before in Sam Houston National Forest near Richards. Texas, April 3, 2023
 Close up of poroid crust fungus Xanthoporia radiata (Mensularia radiata) on a dry branch of hazelnut in Orekhovo, 40 miles north from Saint Petersburg. Russia, March 18, 2017
 Spores (in KOH), together with some larger spore of endophyte fungus Lylea tetracoila (Heteroconium tetracoilum)(?) from a tiny black dot on wood near crust of Hypoxylon rubiginosum, collected a day before in Sam Houston National Forest near Richards. Texas, April 3, 2023
 Spores (in KOH, low magnification) of endophyte fungus Lylea tetracoila (Heteroconium tetracoilum)(?) from a tiny black dot on wood near orange crust of Hypoxylon rubiginosum, collected a day before in Sam Houston National Forest near Richards. Texas, April 3, 2023
 Tiny soft granules of anamorph (asexual stage) of crust fungus Hypoxylon rubiginosum(?) together with some orange tooth-like corticioid fungus on a fallen tree branch in Lick Creek Park. College Station, Texas, April 19, 2023
 White-rot corticioid fungus Phlebiopsis gigantea covering large area on a wet spruce log in Zakhodskoe (Lounatjoki), 50 miles north from Saint Petersburg. Russia, May 15, 2021
 Details of corticioid fungus Hypoxylon rubiginosum(?) on a log on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, November 26, 2020
 Texture of corticioid fungus Hypoxylon rubiginosum(?) on a log on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, November 26, 2020
 Texture of white-rot corticioid fungus Phlebiopsis gigantea covering large area on a wet spruce log in Zakhodskoe (Lounatjoki), 50 miles north from Saint Petersburg. Russia, May 15, 2021
 View from a hill slope in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
 Yellow corticioid fungus (Hypoxylon rubiginosum(?), young stage) on underside of an oak log on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, May 19, 2018
 Candlesnuff fungus (Xylaria hypoxylon) in Sergievka Park. Old Peterhof, west from Saint Petersburg, Russia, October 5, 2017
 Fungus Hypoxylon rubiginosum(?) on rotting wood on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, August 31, 2019
 Candlesnuff fungus (Xylaria hypoxylon)(?) on rotting wood on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, April 16, 2019
 Fungus Hypoxylon rubiginosum(?) on rotting wood on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 14, 2019
 Spores (in KOH) and some black hair (under a microscope) of endophyte fungus Lylea tetracoila (Heteroconium tetracoilum)(?) from a tiny black dot on wood near crust of Hypoxylon rubiginosum, collected a day before in Sam Houston National Forest near Richards. Texas, April 3, 2023
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