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2513-22. Coltsfoot rust gall fungus, Puccinia poarum, in Sosnovka Park. Saint Petersburg, Russia, May 27, 2019Similar picturesLarge thumbnails | Use small thumbnails | View as slideshow |
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2513-22. Coltsfoot rust gall fungus, Puccinia poarum, in Sosnovka Park. Saint Petersburg, Russia, May 27, 2019Similar picturesLarge thumbnails | Use small thumbnails | View as slideshow |
 Underside of a leaf with coltsfoot rust gall fungus, Puccinia poarum, in Sosnovka Park. Saint Petersburg, Russia, May 27, 2019  Coltsfoot lower epidermis with rust (coltsfoot rust gall, Puccinia poarum) in Petiayarvi, north from Saint Petersburg. Russia, July 21, 2017  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  Rust fungus Puccinia urticata on leaves of common (stinging) nettle in Sosnovka Park. Saint Petersburg, Russia, May 27, 2017  Thistle rust fungus (Puccinia punctiformis) taken from area of Udelnaya. Saint Petersburg, Russia, August 11, 2017  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  Fungus of creeping thistle rust (Puccinia punctiformis) taken from area of Udelnaya. Saint Petersburg, Russia, August 11, 2017  Close up 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  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  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  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  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  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  Sorrel rust fungus (Puccinia oxalidis) on yellow oxalis (Oxalis stricta) in wet area on Raccoon Run Trail in Lick Creek Park. College Station, Texas, March 26, 2019  Common yellow oxalis (Oxalis stricta) with sorrel rust fungus (Puccinia oxalidis) in wet area on Raccoon Run Trail in Lick Creek Park. College Station, Texas, March 26, 2019  Common yellow oxalis (Oxalis stricta) with sorrel rust fungus (Puccinia oxalidis) in wet area on Raccoon Run Trail in Lick Creek Park. College Station, Texas, March 22, 2019  Leaves of yellow oxalis (Oxalis stricta) with sorrel rust fungus (Puccinia oxalidis) in wet area on Raccoon Run Trail in Lick Creek Park. College Station, Texas, March 26, 2019  Leaves of Carolina bristlemallow (Modiola caroliniana) with blister-like pustules of rust fungus Puccinia modiolae taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 11, 2019  Leaves of Carolina bristlemallow (Modiola caroliniana) with blister-like pustules of rust fungus Puccinia modiolae taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 13, 2019  Back lit leaf with blister-like pustules of rust fungus Puccinia modiolae on 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  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  Urediniospores of sorrel rust fungus (Puccinia oxalidis), collected in Bee Creek Park. College Station, Texas, March 29, 2022  Spores of rust fungus Puccinia modiolae collected from Lick Creek Park. College Station, Texas, March 7, 2022  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  Orange-brown bumps on underside of leaf of Carolina bristlemallow (Modiola caroliniana) caused by rust fungus Puccinia modiolae, taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 13, 2019  Spores of sorrel rust fungus (Puccinia oxalidis) at low magnofication, collected in Bee Creek Park. College Station, Texas, March 29, 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 leaves of wood sorrel Oxalis stricta with rust fungus Puccinia oxalidis in Bee Creek Park. College Station, Texas, March 29, 2022  Teliospores and urediniospores of rust fungus Puccinia modiolae at higher magnification collected from Lick Creek Park. College Station, Texas, March 7, 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  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  Blister-like pustules on underside and yellow-orange sunken spots on upper leaf surface of Carolina bristlemallow (Modiola caroliniana) caused by rust fungus Puccinia modiolae, taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 13, 2019  Aecial peridium of rust fungus Puccinia dioicae under microscope, collected from cut-leaved evening primrose in Lick Creek Park. College Station, Texas, April 18, 2022  Teleutospores and aeciospores of rust fungus Puccinia dioicae under microscope, collected from cut-leaved evening primrose in Lick Creek Park. College Station, Texas, April 18, 2022  Leaves of Carolina bristlemallow (Modiola caroliniana) with blister-like pustules of rust fungus Puccinia modiolae taken from Lick Creek Park. College Station, Texas, March 7, 2022  Details of aeciospores of rust fungus Puccinia dioicae under microscope, collected from cut-leaved evening primrose in Lick Creek Park. College Station, Texas, April 18, 2022  Various types of spores of rust fungus Puccinia dioicae under microscope, collected from cut-leaved evening primrose in Lick Creek Park. College Station, Texas, April 18, 2022  Spores of different sizes of rust fungus Puccinia dioicae under microscope, collected from cut-leaved evening primrose in Lick Creek Park. College Station, Texas, April 18, 2022  Sorrel rust fungus (Puccinia oxalidis) on yellow oxalis (Oxalis stricta) in Bee Creek Park. College Station, Texas, March 29, 2022  Close-up of leaves of 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  Underside of leaves of 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  Basal leaves of 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  Whitish peridial cells of rust fungus Puccinia dioicae under microscope, collected from cut-leaved evening primrose in Lick Creek Park. College Station, Texas, April 18, 2022  Details of aecial peridium of rust fungus Puccinia dioicae under microscope, collected from cut-leaved evening primrose in Lick Creek Park. College Station, Texas, April 18, 2022  Various spores of mayapple rust fungus (Puccinia podophylli) collected in Sam Houston National Forest. Texas, March 4, 2023  Velvety patches on a birch leaf caused by the velvet erineum gall eriophyid mite in Sosnovka Park. Saint Petersburg, Russia, August 21, 2017  Red velvety patches on a birch leaf caused by the velvet erineum gall eriophyid mite in Sosnovka Park. Saint Petersburg, Russia, June 29, 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  Whitish peridial cells and aeciospores of rust fungus Puccinia dioicae under microscope, collected from cut-leaved evening primrose in Lick Creek Park. College Station, Texas, April 18, 2022  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  Urediniospores of rust fungus Puccinia eatoniae var. myosotidis(?) from scorpion grass collected from Lick Creek Park 3/7/2022. College Station, Texas, March 8, 2022  Aeciospores (orange) of mayapple rust fungus (Puccinia podophylli) collected in Sam Houston National Forest. Texas, March 4, 2023  Leaves of spring scorpion grass (Myosotis macrosperma, Boraginaceae) with rust fungus Puccinia eatoniae var. myosotidis(?) near Racoon Run Trail in Lick Creek Park. College Station, Texas, March 7, 2022  Close-up of spring scorpion grass (Myosotis macrosperma, Boraginaceae) with rust fungus Puccinia eatoniae var. myosotidis(?) near Racoon Run Trail taken from Lick Creek Park. College Station, Texas, March 7, 2022  Seedlings of spring scorpion grass (Myosotis macrosperma, Boraginaceae) with rust fungus Puccinia eatoniae var. myosotidis(?) near Racoon Run Trail in Lick Creek Park. College Station, Texas, March 7, 2022  Rust fungus Chrysomyxa pyrolae on lower surface of a leaf of shinleaf near Kuzmolovo, north from Saint Petersburg. Russia, May 8, 2019  Aeciospores (orange) of mayapple rust fungus (Puccinia podophylli) collected in Sam Houston National Forest near Montgomery. Texas, April 16, 2022  Orange aeciospores under a microscope of mayapple rust fungus (Puccinia podophylli), collected in Sam Houston National Forest. Texas, March 4, 2023  Aeciospores (orange) and some other spores 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  Some tubular structure of rust fungus Puccinia dioicae under microscope, collected from cut-leaved evening primrose collected in Lick Creek Park. College Station, Texas, April 18, 2022  Young plant of spring scorpion grass (Myosotis macrosperma, Boraginaceae) with rust fungus Puccinia eatoniae var. myosotidis(?) near Racoon Run Trail in Lick Creek Park. College Station, Texas, March 7, 2022  Aecia of mayapple rust fungus Allodus podophylli (Puccinia podophylli) on underside of leaves of May apple (Podophyllum peltatum) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, March 2, 2019  Underside of a leaf of May apple (Podophyllum peltatum) with aecia of mayapple rust fungus (Allodus podophylli, Puccinia podophylli) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, March 16, 2019  Young plants of May apple (Podophyllum peltatum) with aecia of mayapple rust fungus Allodus podophylli (Puccinia podophylli) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, March 2, 2019  Teliospores (teleutospores, black) of mayapple rust fungus (Puccinia podophylli) collected in Sam Houston National Forest near Montgomery. Texas, April 16, 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  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) in KOH, collected in Sam Houston National Forest near Montgomery. Texas, April 9, 2023  Side view of seedlings of spring scorpion grass (Myosotis macrosperma, Boraginaceae) with rust fungus Puccinia eatoniae var. myosotidis(?) near Racoon Run Trail in Lick Creek Park. College Station, Texas, March 7, 2022  May apple (mandrake, Podophyllum peltatum) with yellow spots caused by teleutosori of mayapple rust fungus Allodus podophylli (Puccinia podophylli) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, March 30, 2019  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 greenbrier leaves with rust fungus Puccinia smilacis, collected on Richards Loop Trail in Sam Houston National Forest. Texas, March 9, 2022  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 (teleutospores, black) of mayapple rust fungus (Puccinia podophylli) under a microscope, collected in Sam Houston National Forest near Montgomery. Texas, April 16, 2022  Aecial peridium showing the whitish peridial cells and aeciospores of rust fungus Puccinia dioicae under microscope at low magnification, collected from cut-leaved evening primrose in Lick Creek Park. College Station, Texas, April 18, 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  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  Tiny bright orange cups on aecia of mayapple rust fungus (Allodus podophylli, Puccinia podophylli) underside of a leaf of May apple (Podophyllum peltatum) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, March 16, 2019  Gall-forming fungus Nodulisporium cecidiogenes on a fallen oak on a beach in Tarkhovka Park, west from Saint Petersburg. Russia, August 26, 2017  Willow rust fungus (Melampsora ari-salicina(?) on a female catkin of goat willow in Sestroretsk near Saint Petersburg. Russia, May 30, 2019  Close up of gall-forming fungus Nodulisporium cecidiogenes on a fallen oak on a beach in Tarkhovka Park, west from Saint Petersburg. Russia, August 26, 2017  Spores of rust fungus Puccinia eatoniae var. myosotidis(?) from spring scorpion grass collected at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 3, 2022  Spring scorpion grass (Myosotis macrosperma) with rust fungus Puccinia eatoniae var. myosotidis(?) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 12, 2022  Orange aeciospores of rust fungus Puccinia eatoniae var. myosotidis(?) from spring scorpion grass collected at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 3, 2022  Rust fungus Chrysomyxa pyrolae on shinleaf (Round-leaved Wintergreen, Pyrola rotundifolia) on Lenin Trail in area of Razliv near Dibuny, north-west from Saint Petersburg, Russia, May 11, 2019  Orange berry rust, fungus Gymnoconia peckiana (Arthuriomyces peckianus) on a shoot of raspberry near Lenin Trail in area of Razliv near Dibuny, north-west from Saint Petersburg, Russia, May 21, 2019  Underside of a leaf of spring scorpion grass (Myosotis macrosperma) with rust fungus Puccinia eatoniae var. myosotidis(?) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 12, 2022  Textured surface of spores of rust fungus Puccinia eatoniae var. myosotidis(?) from spring scorpion grass collected at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 3, 2022 |