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2674-16. 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

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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
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
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
Tiny bright orange cups 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
Vein-bordered yellow areas on the leaf of May apple (mandrake, Podophyllum peltatum) with mayapple rust fungus Allodus podophylli (Puccinia podophylli) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, May 5, 2018
Leaves of May apple (Podophyllum peltatum) with yellow spots caused by mayapple rust fungus Allodus podophylli (Puccinia podophylli) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, March 23, 2020
Underside of a leaf with coltsfoot rust gall fungus, Puccinia poarum, in Sosnovka Park. Saint Petersburg, Russia, May 27, 2019
Underside of a leaf of May apple (Podophyllum peltatum) with 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
Narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
Flowers of narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
May apple (mandrake, Podophyllum peltatum) with yellow spots caused by 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
Underside of a leaf of May apple (mandrake, Podophyllum peltatum) with brown spores 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, May 5, 2018
Blister-like pustules on underside and yellow-orange sunken spots on upper leaf surface of Geranium carolinianum caused by hollyhock or mallow rust fungus (Puccinia malvacearum), taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 13, 2019
Leaves of May apple (mandrake, Podophyllum peltatum) with yellow spots caused by mayapple rust fungus Allodus podophylli (Puccinia podophylli) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, May 5, 2018
Coltsfoot rust gall fungus, Puccinia poarum, in Sosnovka Park. Saint Petersburg, Russia, May 27, 2019
Sporangia of mayapple rust fungus Allodus podophylli (Puccinia podophylli) on underside of leaves of May apple on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, February 29, 2020
Tiny bright orange cups on the underside of leaves of mayapple caused by 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
Young plants of May apple (Podophyllum peltatum) with 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
Sporangia 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
Young flowers of narrow-leaf gayfeather (Liatris mucronata) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008
Opening flowers of narrow-leaf gayfeather (Liatris mucronata) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008
Orange-brown bumps on underside of Geranium carolinianum leaf caused by hollyhock or mallow rust fungus (Puccinia malvacearum), taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 13, 2019
Gayfeather (Liatris) flower on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
Close-up of flowers of gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
Elegant gayfeather (pinkscale, Liatris elegans) on Richards Loop Trail in Sam Houston National Forest. Texas, August 21, 2020
Narrow-leaf gayfeather (Liatris mucronata), close up of flowers with imbricated phyllaries enclosing each cluster, on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 20, 2008
Coltsfoot lower epidermis with rust (coltsfoot rust gall, Puccinia poarum) in Petiayarvi, north from Saint Petersburg. Russia, July 21, 2017
Leaves of Geranium carolinianum with blister-like pustules of hollyhock or mallow rust fungus (Puccinia malvacearum) on a receding shore of Lake Conroe on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, February 16, 2020
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
Liatris (gayfeather) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
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
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
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
Gayfeather (Liatris) at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, August 19, 2012
Gayfeather (Liatris) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
Pine needles with rust fungus Coleosporium asterum on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
Back lit leaf with blister-like pustules of hollyhock or mallow rust fungus (Puccinia malvacearum) on Geranium carolinianum taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 13, 2019
Shoot of gayfeather (Liatris) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 15, 2019
Flowers of gayfeather (Liatris) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, July 13, 2014
Flower buds of narrow-leaf gayfeather (Liatris mucronata) on Little Lake Creek Loop Trail in Sam Houston National Forest. Huntsville, Texas, September 14, 2008
Blister-like pustules of hollyhock or mallow rust fungus (Puccinia malvacearum) on lower leaf surface of Geranium carolinianum taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 13, 2019
Blister-like pustules of hollyhock or mallow rust fungus (Puccinia malvacearum) on lower leaf surface of Geranium carolinianum on a lawn near apartments on George Bush Drive. College Station, Texas, March 11, 2019
Pine needles with pustules of rust fungus Coleosporium asterum on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
Blister-like pustules of hollyhock or mallow rust fungus (Puccinia malvacearum) on lower leaf surface and a stem of Geranium carolinianum taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 13, 2019
Pine seedling with needle rust caused by fungus Coleosporium asterum on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
Gayfeather (Liatris) in front of a pine tree at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, August 19, 2012
Flowers of elegant gayfeather (pinkscale, Liatris elegans) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 23, 2018
Flower buds of blazing star (Liatris, gayfeather) in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, August 10, 2008
Aecial pustules of a needle rust caused by fungus Coleosporium asterum on pine needles on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
Flower spike of elegant gayfeather (pinkscale, Liatris elegans) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 23, 2018
Leaf of persimmon (Diospyros virginiana) prematurely turned yellow with black spots of fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 21, 2020
Green lynx spider with immobilized prey, Gulf Fritillary (Agraulis vanillae) butterfly, on a flower of narrow-leaf gayfeather (Liatris mucronata) on Little Lake Creek Loop Trail in Sam Houston National Forest. Huntsville, Texas, September 14, 2008
Oak leaf anthracnose (leaf spot fungus, Dicarpella dryina, Tubakia dryina) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
Black blotches on the leaf of persimmon (Diospyros virginiana) caused by Cercospora leaf spot fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 21, 2020
Green lynx spider (Peucetia viridans) injecting paralyzing venom into the body of Gulf Fritillary (Agraulis vanillae) butterfly on liatris (narrow-leaf gayfeather) flower on Little Lake Creek Loop Trail in Sam Houston National Forest. Huntsville, Texas, September 14, 2008
Close-up of oak leaf anthracnose (leaf spot fungus, Dicarpella dryina, Tubakia dryina) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
Back lit oak leaf anthracnose (leaf spot fungus, Dicarpella dryina, Tubakia dryina) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
Gayfeather (Liatris) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richardson, August 9, 2009
Pine-pine gall rust (Endocronartium harknessii rust fungus) on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, March 23, 2019
Venation of a sassafras leaf on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
Leaves of Geranium carolinianum with blister-like pustules of hollyhock or mallow rust fungus (Puccinia malvacearum) taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 11, 2019
Leaves of Geranium carolinianum with blister-like pustules of hollyhock or mallow rust fungus (Puccinia malvacearum) taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 13, 2019
Skipper butterfgly on gayfeather (Liatris) in Little Lake Creek Loop Trail in Sam Houston National Forest. Richardson, August 9, 2009
Orange shoot of an oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
Necrotic spots that develop into angular lesions on underside of a leaf of persimmon (Diospyros virginiana) caused by persimmon Cercospora leaf spot fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 21, 2020
Thistle rust fungus (Puccinia punctiformis) taken from area of Udelnaya. Saint Petersburg, Russia, August 11, 2017
Fungus of creeping thistle rust (Puccinia punctiformis) taken from area of Udelnaya. Saint Petersburg, Russia, August 11, 2017
Young lobed leaf of mustang grape (Vitis mustangensis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
Young red lobed leaf of mustang grape (Vitis mustangensis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
Rust fungus Puccinia urticata on leaves of common (stinging) nettle in Sosnovka Park. Saint Petersburg, Russia, May 27, 2017
Fungus of creeping thistle rust (Puccinia punctiformis) in Siverskaya, 50 miles south from Saint Petersburg. Russia, July 13, 2017
Creeping thistle rust fungus (Puccinia punctiformis) in Siverskaya, 50 miles south from Saint Petersburg. Russia, July 13, 2017
Yellow wood sorrel (Oxalis stricta) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020
Yellow wood sorrel (Oxalis stricta) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
Orange corticioid fungus Leucogyrophana olivascens (or Serpula, Coniophora) on a fallen pine on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, February 8, 2020
Flowers of yellow wood sorrel (Oxalis stricta) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
Cedar-hawthorn rust fungus (Gymnosporangium globosum)(?) on hawthorn in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, May 18, 2014
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
Some brown cup Ascomycete fungus on a site of old bonfire on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020
Yellow flower of rock-rose (frostweed, sunrose, Helianthemum carolinianum) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
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
Orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
Some orange crust (Corticiaceae) fungus under a pine(?) log on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, November 3, 2019
Blooming orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
Flowers of orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
Orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, April 28, 2020
Orange webcap (Cortinarius) mushrooms on Richards Loop Trail in Sam Houston National Forest. Texas, April 6, 2020
Hickory leaf with dense cover of Phylloxera galls on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, May 2, 2020
Close up of orange crust (Corticiaceae) fungus under a pine(?) log on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, November 3, 2019
Orange milkweed (Asclepias tuberosa) in bloom on Richards Loop Trail in Sam Houston National Forest. Texas, April 28, 2020
Flowers of orange milkweed (Asclepias tuberosa) on Richards Loop Trail in Sam Houston National Forest. Texas, April 28, 2020
Cap some pale yellow Amanita mushroom on Richards Loop Trail in Sam Houston National Forest. Texas, June 3, 2020
Tiny yellow flowers of Hypericum(?) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
Spreading orange crust (Corticiaceae) fungus on underside surface of a pine(?) log on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, November 3, 2019
Bolete mushrooms with orange pores on a steep side of a creek on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020
Alder bracket mushrooms (Xanthoporia radiata)(?) on a small osage orange tree in a pine forest on Richards Loop Trail in Sam Houston National Forest. Texas, June 27, 2020
Side view of some pale yellow Amanita mushroom on Richards Loop Trail in Sam Houston National Forest. Texas, June 3, 2020
Dissected view of some pale yellow Amanita mushroom on Richards Loop Trail in Sam Houston National Forest. Texas, June 3, 2020

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