 Warty cavalier mushrooms (Melanoleuca verrucipes) in Sosnovka Park. Saint Petersburg, Russia, August 6, 2024
 Side view of warty cavalier mushrooms (Melanoleuca verrucipes) in Sosnovka Park. Saint Petersburg, Russia, August 6, 2024
 Warty cavalier mushrooms (Melanoleuca verrucipes) on a pile of rotten leaves in Sosnovka Park. Saint Petersburg, Russia, August 14, 2017
 Fluorescence of gills of olive edge bonnet mushrooms (Mycena viridimarginata) under ultraviolet light, collected in Sosnovka Park. Saint Petersburg, Russia, August 6, 2024
 Yellow-green fluorescence of gills of sulphur tuft mushrooms (Hypholoma fasciculare) under ultraviolet light, collected in Sosnovka Park. Saint Petersburg, Russia, August 6, 2024
 Dissected young warty cavalier mushrooms (Melanoleuca verrucipes) in Sosnovka Park. Saint Petersburg, Russia, June 22, 2017
 Close up of young warty cavalier mushrooms (Melanoleuca verrucipes) in Sosnovka Park. Saint Petersburg, Russia, June 22, 2017
 Warty cavalier mushrooms (Melanoleuca verrucipes) on a tree utilization site in Sosnovka Park. Saint Petersburg, Russia, July 16, 2017
 Warty cavalier mushrooms (Melanoleuca verrucipes) on a tree utilization site in Sosnovka Park. Saint Petersburg, Russia, June 22, 2017
 Warty cavalier mushrooms (Melanoleuca verrucipes) on rotting pile of dry leaves in Sosnovka Park. Saint Petersburg, Russia, September 16, 2017
 Warty cavalier mushrooms (Melanoleuca verrucipes) on a tree utilization site in Sosnovka Park. Saint Petersburg, Russia, June 25, 2017
 Group of warty cavalier mushrooms (Melanoleuca verrucipes) on a tree utilization site in Sosnovka Park. Saint Petersburg, Russia, July 16, 2017
 Group of warty cavalier mushrooms (Melanoleuca verrucipes) on rotting pile of dry leaves in Sosnovka Park. Saint Petersburg, Russia, September 16, 2017
 Young warty cavalier mushrooms (Melanoleuca verrucipes) on a tree utilization site in Sosnovka Park. Saint Petersburg, Russia, June 22, 2017
 Fluorescence of olive edge bonnet mushrooms (Mycena viridimarginata) under ultraviolet light, collected in Sosnovka Park. Saint Petersburg, Russia, August 6, 2024
 Gills of common bonnet mushrooms (Mycena galericulata) showing blue fluorescence under ultraviolet light near Lisiy Nos, west from Saint Petersburg. Russia, July 19, 2024
 Gills of oysterling mushrooms Moniliophthora conchata from a trumpet vine glowing blue in ultraviolet light in Lick Creek Park. College Station, Texas, August 30, 2024
 Mushrooms Melanoleuca verrucipes on mulch and wood chips in Sosnovka Park. Saint Petersburg, Russia, July 11, 2016
 Fairy ring of Melanoleuca verrucipes mushrooms on mulch in Sosnovka Park. Saint Petersburg, Russia, July 20, 2016
 Mushrooms Melanoleuca verrucipes on dry leaves, mulch and wood chips in Sosnovka Park. Saint Petersburg, Russia, July 11, 2016
 Old caps of mushrooms Melanoleuca verrucipes on mulch and wood chips in Sosnovka Park. Saint Petersburg, Russia, July 11, 2016
 Stunted cavalier mushroom (Melanoleuca brevipes) on an old railroad grade in Kuzmolovo, north from Saint Petersburg. Russia, August 9, 2024
 Cross section of a stunted cavalier mushroom (Melanoleuca brevipes) in Kuzmolovo, north from Saint Petersburg. Russia, August 9, 2024
 Plant with red fluorescence in ultraviolet light in Lick Creek Park. College Station, Texas, October 7, 2024
 Side view of a stunted cavalier mushroom (Melanoleuca brevipes) on an old railroad grade in Kuzmolovo, north from Saint Petersburg. Russia, August 9, 2024
 Yellow brittlegill mushrooms (Russula claroflava(?)) partially lit by ultraviolet light in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 Fluorescence of water fern (Azolla) and duckweed in ultraviolet light in Bee Creek Park. College Station, Texas, November 11, 2024
 Gills of red brittlegill (Russula) mushroom in near ultraviolet light, collected in Lick Creek Park. College Station, Texas, January 29, 2024
 Underside of a red-belted bracket mushroom (Fomitopsis pinicola) lit by ultraviolet light on a stump in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 Round patches of crustose lichen with bright orange fluorescence on a granite tomb both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Odd Fellow Cemetery. Anderson, Texas, November 9, 2024
 Grooved cavalier mushroom (Melanoleuca grammopodia) on roadside near Dibuny, north-west from Saint Petersburg. Russia, August 28, 2018
 Creeping grass glowing blue in ultraviolet light in Lick Creek Park. College Station, Texas, August 30, 2024
 Shoot of grass glowing blue in ultraviolet light in Lick Creek Park. College Station, Texas, August 30, 2024
 Young toad glowing blue in ultraviolet light in Lick Creek Park. College Station, Texas, August 30, 2024
 A toad on a sandy path glowing blue in ultraviolet light in Lick Creek Park. College Station, Texas, August 30, 2024
 Apothecia of a foliose lichen glowing blue in ultraviolet light in Lick Creek Park. College Station, Texas, August 30, 2024
 Spores of conifer woodtuft mushrooms (Kuehneromyces lignicola) collected earlier 7/17/2024 in Sosnovka Park, Saint Petersburg, Russia, August 22, 2024
 Stunted cavalier mushrooms (Melanoleuca brevipes) near 12 K4 Tikhoretsky Prospect. Saint Petersburg, Russia, June 9, 2017
 Stunted cavalier mushrooms (Melanoleuca brevipes) on roadside in Kuzmolovo, north from Saint Petersburg. Russia, May 21, 2021
 Cavalier mushrooms Melanoleuca melaleuca(?) in area of Lisiy Nos - Olgino west from Saint Petersburg. Russia, September 21, 2017
 Stunted cavalier mushrooms (Melanoleuca brevipes) on roadside near Kavgolovskoe Lake in Toksovo, suburb of Saint Petersburg. Russia, June 10, 2017
 Stunted cavalier mushrooms (Melanoleuca brevipes) on roadside west from Kavgolovo Lake near Toksovo, north from Saint Petersburg. Russia, May 19, 2019
 Stunted cavalier mushrooms (Melanoleuca brevipes) on roadside near Kavgolovskoe Lake in area of Toksovo, north from Saint Petersburg, Russia, June 16, 2017
 Stunted cavalier mushrooms (Melanoleuca brevipes)(?) near a fence of a summer house in Vyritsa, 50 miles south from Saint Petersburg. Russia, September 10, 2017
 Glowing gills of ringless honey mushrooms (Desarmillaria caespitosa) in ultraviolet light in Lick Creek Park. College Station, Texas, October 8, 2024
 Glowing gills of ringless honey mushrooms (Desarmillaria caespitosa) in ultraviolet light in Lick Creek Park. College Station, Texas, October 7, 2024
 Gills of a cluster of ringless honey mushrooms (Desarmillaria caespitosa) in ultraviolet light in Lick Creek Park. College Station, Texas, October 8, 2024
 Spores (in KOH) of small white funnel mushrooms on a mossy tree root collected earlier 7/30/2024 in Sosnovka Park, in St. Petersburg, Russia, August 22, 2024
 Spores (in lugol) of small white funnel mushrooms on a mossy tree root collected earlier 7/30/2024 in Sosnovka Park, in St. Petersburg, Russia, August 22, 2024
 Gills of mushroom Panus tephroleucus in ultraviolet light collected from North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, November 7, 2024
 Flower of blue morning glory (Ipomoea) in ultraviolet light in Leach Teaching Gardens at Texas A and M University. College Station, Texas, August 25, 2024
 Some sedge(?) glowing blue in ultraviolet light in Lick Creek Park. College Station, Texas, September 11, 2024
 Brown warty caps of royal fly agaric mushrooms (Amanita regalis) under spruce trees in Tarkhovka Park, west from Saint Petersburg. Russia, August 2, 2024
 Stunted cavalier mushroom (Melanoleuca brevipes)(?) on Pilbashennaya Alley in Pavlovsk Park. Pavlovsk, a suburb of Saint Petersburg, Russia, September 14, 2017
 Gills of Gymnopil(?) mushrooms on peat in Sosnovka Park. Saint Petersburg, Russia, August 21, 2017
 Mushrooms Delicatula integrella on a stick both in natural light and under 365 nm ultraviolet (UV-A) blacklight near Lisiy Nos, west from Saint Petersburg. Russia, July 19, 2024
 Blue and orange fluorescent lichens on bark of hackberry in ultraviolet light in Lemontree Park. College Station, Texas, November 5, 2024
 Close-up of blue and orange fluorescent lichens on bark of hackberry in ultraviolet light in Lemontree Park. College Station, Texas, November 5, 2024
 Gills of bitter oysterling mushrooms (Panellus stipticus) in Sosnovka Park. Saint Petersburg, Russia, August 21, 2017
 Light blue webcap mushrooms Cortinarius traganus(?) near Orekhovo, north from Saint Petersburg. Russia, August 13, 2016
 Lichens glowing blue and yellow on a trunk of honey mesquite under ultraviolet light on Post Oak Trail in Lick Creek Park. College Station, Texas, September 5, 2024
 Small white funnel mushrooms on a mossy tree root when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 Spores of pale brown waxy corticioid fungus on underside of a fallen birch collected earlier 7/30/2024 in Sosnovka Park, in St. Petersburg, Russia, August 22, 2024
 Red brittlegill (Russula) mushroom in near ultraviolet light, collected in Lick Creek Park. College Station, Texas, January 29, 2024
 Close-up of lichens glowing blue and yellow on a trunk of honey mesquite under ultraviolet light on Post Oak Trail in Lick Creek Park. College Station, Texas, September 5, 2024
 Spores (in KOH) of fibrecap mushrooms Inocybe curvipes(?) collected earlier 8/2/2024 in Tarkhovka Park, west from Saint Petersburg, Russia, August 23, 2024
 Bonnet (Mycena) mushrooms on a log in Sosnovka Park. Saint Petersburg, Russia, August 6, 2024
 Spores of royal fly agaric mushrooms (Amanita regalis) collected earlier 8/2/2024 in Tarkhovka Park, west from Saint Petersburg, Russia, August 23, 2024
 Various crustose lichen on a trunk of oak tree in ultraviolet light in Bee Creek Park. College Station, Texas, August 19, 2024
 Crustose lichens in ultraviolet light on bark of a hackberry in Lemontree Park. College Station, Texas, August 22, 2024
 Spores of Psilocybe-like gilled mushrooms in moss under spruce trees collected earlier 8/2/2024 in Tarkhovka Park, west from Saint Petersburg, Russia, August 23, 2024
 Crustose lichens on an iron bridge in ultraviolet light in Lick Creek Park. College Station, Texas, August 27, 2024
 Rough bark of a live oak with crustose lichens in ultraviolet light in Thomas Park. College Station, Texas, August 21, 2024
 Sulphur tuft mushrooms (Hypholoma fasciculare) in Sosnovka Park. Saint Petersburg, Russia, August 6, 2024
 Underside of brittlegill (Russula) mushroom when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 White resupinate polypore mushroom on a log when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 Crustose lichen with bright orange fluorescence on a granite tomb when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Odd Fellow Cemetery. Anderson, Texas, November 9, 2024
 Close-up of sulphur tuft mushrooms (Hypholoma fasciculare) in Sosnovka Park. Saint Petersburg, Russia, August 6, 2024
 Ascomycete mushrooms Anthracobia maurilabra on a bonfire site in Sosnovka Park. Saint Petersburg, Russia, August 6, 2024
 Top view of a brown brittlegill (Russula) mushroom when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 Top view of a pink brittlegill (Russula) mushroom when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 Cracked cap of a mature brittlegill (Russula) mushroom when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 Blue cups of fungus Chlorociboria aeruginosa in Sosnovka Park. Saint Petersburg, Russia, August 14, 2017
 Sidewalk firedot lichen (Xanthocarpia feracissima) in ultraviolet light on a concrete path in Bee Creek Park. College Station, Texas, August 19, 2024
 Crustose lichens in ultraviolet light on a small mesquite tree on Post Oak Trail in Lick Creek Park. College Station, Texas, August 23, 2024
 Prostrate polypore mushroom Perenniporia phloiophila on a live oak (Quercus virginiana) in ultraviolet light in Thomas Park. College Station, Texas, August 21, 2024
 Sidewalk firedot (Xanthocarpia feracissima) with other crustose lichens in ultraviolet light on a concrete path in Lemontree Park. College Station, Texas, August 22, 2024
 Spores of mushrooms Gerronema strombodes collected earlier 8/7/2024 in Solnechnoe, west from Saint Petersburg, Russia, August 23, 2024
 Spores (in KOH) of pale brittlestem mushrooms (Psathyrella candolleana) collected earlier 8/11/2024 in Saint Petersburg, Russia, August 23, 2024
 Soft whitish corticioid fungus on underside of a rotting birch log when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 Underside of small bracket polypore mushroom with orange pores when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 Pore surface of a red-belted bracket mushroom (Fomitopsis pinicola) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 Close-up of guttation of bracket polypore mushroom Fomitopsis pinicola when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 Olive edge bonnet mushrooms (Mycena viridimarginata) on a mossy stump in Sosnovka Park. Saint Petersburg, Russia, August 6, 2024
 Blue cups of fungus Chlorociboria aeruginosa on rotten wood in Sosnovka Park. Saint Petersburg, Russia, August 14, 2017
 Gills of violet webcap mushrooms (Cortinarius violaceus) in Kuzmolovo, north from Saint Petersburg. Russia, August 9, 2024
 Pink brittlegill (Russula) mushrooms with darkening gills in Kuzmolovo, north from Saint Petersburg. Russia, August 9, 2024
 Spores (in KOH) of small dark brown fibrecap (Inocybe) mushrooms collected earlier 8/11/2024 in Saint Petersburg, Russia, August 23, 2024
 Close-up of crustose lichens in ultraviolet light on a small mesquite tree on Post Oak Trail in Lick Creek Park. College Station, Texas, August 23, 2024
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