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2096-19. Coltsfoot lower epidermis with rust (coltsfoot rust gall, Puccinia poarum) in Petiayarvi, north from Saint Petersburg. Russia, July 21, 2017Similar picturesLarge thumbnails | Use small thumbnails | View as slideshow |
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2096-19. Coltsfoot lower epidermis with rust (coltsfoot rust gall, Puccinia poarum) in Petiayarvi, north from Saint Petersburg. Russia, July 21, 2017Similar picturesLarge thumbnails | Use small thumbnails | View as slideshow |
 Coltsfoot rust gall fungus, Puccinia poarum, in Sosnovka Park. Saint Petersburg, Russia, May 27, 2019  Underside of a leaf with coltsfoot rust gall fungus, Puccinia poarum, in Sosnovka Park. Saint Petersburg, Russia, May 27, 2019  Urediniospores of non-galling rust fungus Coleosporium tussilaginis on leaves of coltsfoot (Tussilago farfara) on Lenin Trail near Dibuny, north-west from Saint Petersburg. Russia, July 29, 2024  Orange urediniospores of rust fungus Coleosporium tussilaginis on underside of lleaves of coltsfoot (Tussilago farfara) on Lenin Trail near Dibuny, north-west from Saint Petersburg. Russia, July 29, 2024  Orange-yellow rust fungus Puccinia poarum (Puccinia liatridis) on a leaf of gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020  Basal leaves of gayfeather (Liatris) with orange-yellow rust fungus Puccinia poarum (Puccinia liatridis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020  Orange-yellow rust fungus Puccinia poarum (Puccinia liatridis) on basal leaves of gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020  Underside of basal leaves of gayfeather (Liatris) with orange-yellow rust fungus Puccinia poarum (Puccinia liatridis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020  Close-up of orange-yellow rust fungus Puccinia poarum (Puccinia liatridis) on basal leaves of gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020  Creeping thistle rust fungus (Puccinia punctiformis) in Siverskaya, 50 miles south from Saint Petersburg. Russia, July 13, 2017  Fungus of creeping thistle rust (Puccinia punctiformis) in Siverskaya, 50 miles south from Saint Petersburg. Russia, July 13, 2017  Red-brown rust fungus Puccinia punctiformis on the underside of the leaves of creeping thistle (Cirsium arvense) in Siverskaya, 50 miles south from Saint Petersburg. Russia, July 13, 2017  Thistle rust fungus (Puccinia punctiformis) taken from area of Udelnaya. Saint Petersburg, Russia, August 11, 2017  Coltsfoot (Tussilago farfara, Russian name Mat I Machekha) in Pesochny, north-west from Saint Petersburg. Russia, May 5, 2017  Fungus of creeping thistle rust (Puccinia punctiformis) taken from area of Udelnaya. Saint Petersburg, Russia, August 11, 2017  Flowers of coltsfoot (Tussilago farfara, Russian name Mat I Machekha) on railroad in Toksovo. North from Saint Petersburg, Russia, May 3, 2017  Blooming coltsfoot (Tussilago farfara) on a sand wall of Quarry in Kuzmolovo, north from Saint Petersburg. Russia, May 16, 2017  Rust fungus Chrysomyxa pyrolae on lower surface of a leaf of shinleaf near Dibuny, north-west from Saint Petersburg, Russia, May 29, 2017  Rust fungus Puccinia urticata on leaves of common (stinging) nettle in Sosnovka Park. Saint Petersburg, Russia, May 27, 2017  Rust fungus Chrysomyxa pyrolae on a lower leaf surface of shinleaf taken from old railroad path in Kuzmolovo, north from Saint Petersburg. Russia, May 16, 2017  Flowers of coltsfoot (Tussilago farfara, Russian name Mat I Machekha) on roadside near Kavgolovskoe Lake. North from Saint Petersburg, Russia, May 3, 2017  Yellow flowers of coltsfoot (Tussilago farfara) on a sand wall of Quarry in Kuzmolovo, north from Saint Petersburg. Russia, May 16, 2017  Orange spots on leaves of mountain ash caused by mountain ash-juniper rust fungus (Gymnosporangium cornutum) in Petiayarvi, north from Saint Petersburg. Russia, July 17, 2015  Red-brown rust fungus Puccinia punctiformis on the underside of the leaves of creeping thistle (Cirsium arvense) taken from area of Udelnaya. Saint Petersburg, Russia, August 11, 2017  Coltsfoot (Tussilago farfara, Russian name Mat I Machekha) in Dibuny, near Saint Petersburg. Russia, May 18, 2017  Swollen base of a pine with gall rust (Endocronartium harknessii, Cronartium harknessii rust fungus) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, March 11, 2023  Coltsfoot (Tussilago farfara, Russian name Mat I Machekha) on a logging site near Hallojarvi (Gorynskoe) Lake near Lembolovo, 40 miles north from Saint Petersburg. Russia, April 27, 2017  Common yellow spring flower of coltsfoot (Tussilago farfara, Russian name Mat I Machekha) near Oselki on roadside near Kavgolovskoe Lake. North from Saint Petersburg, Russia, May 3, 2017  Blooming Coltsfoot (Tussilago farfara, Russian name Mat I Machekha) on a logging site near Hallojarvi (Gorynskoe) Lake near Lembolovo, 40 miles north from Saint Petersburg. Russia, April 27, 2017  Flowers of Coltsfoot (Tussilago farfara, Russian name Mat I Machekha) on a logging site near Hallojarvi (Gorynskoe) Lake near Lembolovo, 40 miles north from Saint Petersburg. Russia, April 27, 2017  Pine-pine gall rust (Endocronartium harknessii, Cronartium harknessii rust fungus) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, March 11, 2023  Close up of pine-pine gall rust (Endocronartium harknessii, Cronartium harknessii rust fungus) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, March 11, 2023  Close up of aeciospores of pine-pine gall rust (Endocronartium harknessii, Cronartium harknessii rust fungus) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 10, 2019  Orange aeciospores of pine-pine gall rust (Endocronartium harknessii, Cronartium harknessii rust fungus) on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, March 23, 2019  Rust fungus Chrysomyxa pyrolae on lower surface of a leaf of shinleaf near Kuzmolovo, north from Saint Petersburg. Russia, May 8, 2019  Swollen pine root with pine-pine gall rust (Endocronartium harknessii, Cronartium harknessii rust fungus) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 10, 2019  Pine-pine gall rust (Endocronartium harknessii, Cronartium harknessii rust fungus) on a swollen root at the base of a pine in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 10, 2019  Coltsfoot (Tussilago farfara) near Razliv on a road from Dibuny, north-west from Saint Petersburg, Russia, June 1, 2014  Partially dissected swollen pine root with pine-pine gall rust (Endocronartium harknessii, Cronartium harknessii rust fungus) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 10, 2019  Flower of coltsfoot (Tussilago farfara, Russian name Mat I Machekha) in a forest near Komarovo, 25 miles north-west from Saint Petersburg. Russia, May 9, 2016  Seed head of Coltsfoot (Tussilago farfara, Russian name Mat I Machekha). Dibuny, north-west from Saint Petersburg, Russia, June 1, 2014  Coltsfoot (Tussilago farfara, Russian name Mat I Machekha) near a roadside ditch on Lenin Trail near Dibuny, north-west from Saint Petersburg, Russia, May 11, 2019  Spring flowers of Coltsfoot (Tussilago farfara, Russian name Mat I Machekha) on Lenin Trail near Dibuny, north-west from Saint Petersburg, Russia, May 11, 2019  Yellow flower of coltsfoot (Tussilago farfara, Russian name Mat I Machekha) in a forest near Komarovo, 25 miles north-west from Saint Petersburg. Russia, May 9, 2016  Late blooming coltsfoot (Tussilago farfara, Russian name Mat I Machekha) in a forest near Komarovo, 25 miles north-west from Saint Petersburg. Russia, May 9, 2016  Fluffy seed heads of Coltsfoot (Tussilago farfara, Russian name Mat I Machekha). Dibuny, north-west from Saint Petersburg, Russia, June 1, 2014  Spring flower of coltsfoot (Tussilago farfara, Russian name Mat I Machekha) among dry leaves in a forest near Komarovo, 25 miles north-west from Saint Petersburg. Russia, May 9, 2016  Blister-like pustules of rust fungus Puccinia modiolae on lower leaf surface of Carolina bristlemallow (Modiola caroliniana) taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 13, 2019  Blister-like pustules of rust fungus Puccinia modiolae on lower leaf surface of Carolina bristlemallow (Modiola caroliniana) on a lawn near apartments on George Bush Drive. College Station, Texas, March 11, 2019  Common yellow spring flower of coltsfoot (Tussilago farfara, Russian name Mat I Machekha) on roadside in a forest between Lembolovo and Orekhovo, north from Saint Petersburg. Russia, May 11, 2021  Blister-like pustules of rust fungus Puccinia modiolae on lower leaf surface and stem of Carolina bristlemallow (Modiola caroliniana) taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 13, 2019  Fir-oak-fern rust (Hyalopsora aspidiotus) fungus on a leaf of northern oak fern Gymnocarpium dryopteris near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, July 14, 2017  Rusty underside of a leaf of northern oak fern Gymnocarpium dryopteris affected by a fungal disease fir-oak-fern rust (Hyalopsora aspidiotus) near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, July 14, 2017  Common yellow spring flower of coltsfoot (Tussilago farfara, Russian name Mat I Machekha) in Sablino, south from Saint Petersburg. Russia, May 21, 2011  Seed head of Coltsfoot (Tussilago farfara, Russian name Mat I Machekha) with fluffy pappus attached to seed-bearing achenes west from Toksovo, 10 miles north from Saint Petersburg, Russia, June 24, 2009  Texture of rust fungus Chrysomyxa pyrolae on a leaf of shinleaf taken from old railroad path in Kuzmolovo, north from Saint Petersburg. Russia, May 16, 2017  Rust fungus Chrysomyxa pyrolae underside of a leaf of shinleaf taken from old railroad path in Kuzmolovo, north from Saint Petersburg. Russia, May 16, 2017  Seed head of coltsfoot (Tussilago farfara, Russian name Mat I Machekha) in Sobstvennaya Dacha Park. Old Peterhof, west from Saint Petersburg, Russia, May 17, 2019  Common yellow spring flower of Coltsfoot (Tussilago farfara, Russian name Mat I Machekha) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, May 14, 2011  Rust fungus Chrysomyxa pyrolae on a leaf of shinleaf (Round-leaved Wintergreen, Pyrola rotundifolia, Russian name Grushanka) in Kuzmolovo, north from Saint Petersburg. Russia, May 16, 2017  Seed head of Coltsfoot (Tussilago farfara, Russian name Mat I Machekha) with fluffy pappus attached to seed-bearing achenes in Menkovo, south from Saint Petersburg. Russia, June 1, 2011  Various spores of mayapple rust fungus (Puccinia podophylli) collected in Sam Houston National Forest. Texas, March 4, 2023  Aeciospores (orange) of mayapple rust fungus (Puccinia podophylli) collected in Sam Houston National Forest. Texas, March 4, 2023  Spores of rust fungus Puccinia modiolae collected from Lick Creek Park. College Station, Texas, March 7, 2022  Urediniospores of sorrel rust fungus (Puccinia oxalidis), collected in Bee Creek Park. College Station, Texas, March 29, 2022  Aeciospores (orange) and some other spores of mayapple rust fungus (Puccinia podophylli) collected in Sam Houston National Forest. Texas, March 4, 2023  Aeciospores (orange) of mayapple rust fungus (Puccinia podophylli) collected in Sam Houston National Forest near Montgomery. Texas, April 16, 2022  Spores of sorrel rust fungus (Puccinia oxalidis) at low magnofication, collected in Bee Creek Park. College Station, Texas, March 29, 2022  Spores of rust fungus Puccinia eatoniae var. myosotidis(?) collected a day before in Lick Creek Park. College Station, Texas, February 10, 2023  Orange aeciospores under a microscope of mayapple rust fungus (Puccinia podophylli), collected in Sam Houston National Forest. Texas, March 4, 2023  Teliospores (teleutospores) of mayapple rust fungus (Puccinia podophylli) under a microscope, collected in Sam Houston National Forest. Texas, April 23, 2022  Teliospores (teleutospores) of mayapple rust fungus (Puccinia podophylli) under a microscope at low magnification, collected in Sam Houston National Forest. Texas, April 23, 2022  Teliospores (teleutospores, black) of mayapple rust fungus (Puccinia podophylli) in KOH, collected in Sam Houston National Forest near Montgomery. Texas, April 9, 2023  Greenbrier leaves with rust fungus Puccinia smilacis, collected on Richards Loop Trail in Sam Houston National Forest. Texas, March 9, 2022  Spores of rust fungus Puccinia eatoniae var. myosotidis(?) at low magnification, collected in Lick Creek Park. College Station, Texas, February 10, 2023  Teliospores (teleutospores, black) of mayapple rust fungus (Puccinia podophylli) collected in Sam Houston National Forest near Montgomery. Texas, April 16, 2022  Daisy flower near the train stop in Petiayarvi, north from Saint Petersburg. Russia, July 21, 2017  Orchard grass (Dactylis glomerata) in Petiayarvi, north from Saint Petersburg. Russia, July 21, 2017  Spores (teleutosori) of mayapple rust fungus Allodus podophylli (Puccinia podophylli) collected on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 6, 2024  Spores of rust fungus Puccinia eatoniae var. myosotidis(?) (stacked image), collected in Lick Creek Park. College Station, Texas, February 10, 2023  Rust fungus Puccinia smilacis on greenbrier leaves under a microscope, collected on Richards Loop Trail in Sam Houston National Forest. Texas, March 9, 2022  Teliospores and urediniospores of rust fungus Puccinia modiolae at higher magnification collected from Lick Creek Park. College Station, Texas, March 7, 2022  Urediniospores of rust fungus Puccinia eatoniae var. myosotidis(?) from scorpion grass collected from Lick Creek Park. College Station, Texas, March 7, 2022  Underside of greenbrier leaves with rust fungus Puccinia smilacis, collected on Richards Loop Trail in Sam Houston National Forest. Texas, March 9, 2022  Teliospores (teleutospores, black) of mayapple rust fungus (Puccinia podophylli) under a microscope, collected in Sam Houston National Forest near Montgomery. Texas, April 16, 2022  Close-up of a greenbrier leaf with rust fungus Puccinia smilacis, collected on Richards Loop Trail in Sam Houston National Forest. Texas, March 9, 2022  Underside of leaves of wood sorrel Oxalis stricta with rust fungus Puccinia oxalidis in Bee Creek Park. College Station, Texas, March 29, 2022  Rust fungus Chrysomyxa pyrolae on shinleaf (Pyrola rotundifolia) in Kuzmolovo, north from Saint Petersburg. Russia, May 21, 2021  Rust fungus Chrysomyxa pyrolae on shinleaf (Round-leaved Wintergreen, Pyrola rotundifolia) in area of Dibuny - Pesochny, near Saint Petersburg. Russia, June 3, 2017  Conifer woodtuft mushrooms (Kuehneromyces lignicola) in Petiayarvi, north from Saint Petersburg. Russia, July 21, 2017  Young chanterelle mushrooms (Cantharellus cibarius) in Petiayarvi, north from Saint Petersburg. Russia, July 21, 2017  Spores (teleutosori) at low magnification of mayapple rust fungus Allodus podophylli (Puccinia podophylli) collected on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 6, 2024  Cherry-spruce rust fungus Pucciniastrum areolatum on a spruce cone near Lisiy Nos, west from Saint Petersburg. Russia, May 9, 2017  Teliospores (teleutospores, black) of mayapple rust fungus (Puccinia podophylli) under a microscope at low magnification, collected in Sam Houston National Forest near Montgomery. Texas, April 16, 2022  Cut-leaved evening primrose (Oenothera laciniata) with rust fungus Puccinia dioicae or may be P. oenotherae in Lick Creek Park. College Station, Texas, April 18, 2022  Spindle-shaped teliospores of rust fungus Puccinia modiolae at higher magnification collected from Lick Creek Park. College Station, Texas, March 7, 2022  Urediniospores of rust fungus Puccinia smilacis on greenbrier leaves under a microscope, collected on Richards Loop Trail in Sam Houston National Forest. Texas, March 9, 2022  Urediniospores of rust fungus Puccinia smilacis on greenbrier leaves under a microscope, collected on Richards Loop Trail in Sam Houston National Forest. Texas, March 9, 2022  Aeciospores of rust fungus Puccinia podophylli from a May apple leaf under a microscope, collected from Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, March 10, 2022 |