 Orange Berry Rust fungus Gymnoconia nitens on a leaf of blackberry in Falls on the Brazos Park. Marlin, Texas, March 16, 2018
 Orange Berry Rust fungus Gymnoconia nitens on shoots of blackberry in Falls on the Brazos Park. Marlin, Texas, March 16, 2018
 Orange berry rust fungus (Gymnoconia nitens) on shoots of blackberry in Bastrop State Park. Bastrop, Texas, March 17, 2018
 Blooming blackberry with orange berry rust fungus (Gymnoconia nitens) in Bastrop State Park. Bastrop, Texas, March 17, 2018
 Blooming blackberry damaged by orange berry rust fungus (Gymnoconia nitens) in Bastrop State Park. Bastrop, Texas, March 17, 2018
 Orange berry rust fungus Gymnoconia nitens on young leaves of blackberry in Lick Creek Park. College Station, Texas, March 14, 2022
 Orange berry rust fungus Gymnoconia nitens on shoots of blackberry on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 2, 2024
 Orange berry rust fungus Gymnoconia nitens on young leaves of blackberry on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 2, 2024
 Orange aeciospores of blackberry rust fungus Gymnoconia nitens from Lick Creek Park. College Station, Texas, March 14, 2022
 Aeciospores of blackberry rust fungus Gymnoconia nitens at low magnification from Lick Creek Park. College Station, Texas, March 14, 2022
 Texture of echinulate spores of blackberry rust fungus Gymnoconia nitens from Lick Creek Park. College Station, Texas, March 14, 2022
 Aeciospores of blackberry rust fungus Gymnoconia nitens, collected on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 2, 2024
 Aeciospores of blackberry rust fungus Gymnoconia nitens at low magnification, collected on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 2, 2024
 Aeciospores of blackberry rust fungus Gymnoconia nitens (stacked image), collected on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 2, 2024
 Texture of aeciospores of blackberry rust fungus Gymnoconia nitens (stacked image), collected on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 2, 2024
 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
 Orange berry rust, fungus Gymnoconia peckiana (Arthuriomyces peckianus) on underside of leaves of raspberry near Lenin Trail in area of Razliv near Dibuny, north-west from Saint Petersburg, Russia, May 21, 2019
 Dam of Falls on the Brazos Park. Marlin, Texas, March 16, 2018
 Falls on the Brazos Park. Marlin, Texas, March 16, 2018
 Orange berry rust, fungus Gymnoconia peckiana (Arthuriomyces peckianus) on a shoot of raspberry on black background near Lenin Trail in area of Razliv near Dibuny, north-west from Saint Petersburg, Russia, May 21, 2019
 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
 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
 Leaves of yaupon holly (Ilex vomitoria) with black spots caused by rust like fungus in Hensel Park. College Station, Texas, June 5, 2019
 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
 Tiger sawgill mushrooms (Lentinus tigrinus) on a tree branch taken from shallow water in Falls on the Brazos Park. Marlin, Texas, July 29, 2018
 Leaves of yaupon holly (Ilex vomitoria) with black spots caused by rust like fungus on black background in Hensel Park. College Station, Texas, June 5, 2019
 Falls on the Brazos Park. Marlin, Texas, July 17, 2011
 Dam of Falls on the Brazos Park. Marlin, Texas, July 17, 2011
 Leaves of 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, May 5, 2018
 Winter rosette of stemless evening primrose (Oenothera triloba) with purple spots of spring dieback caused by a fungus Septoria oenotherae near Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, March 10, 2021
 Basal leaf of stemless evening primrose (Oenothera triloba) with purple spots of spring dieback caused by a fungus Septoria oenotherae near Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, March 10, 2021
 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
 Leaves of May apple (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 north from Montgomery. Texas, March 23, 2020
 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
 Orange crust fungus Hypoxylon rubiginosum with velvety anamorph (asexual stage) at its margins on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, April 2, 2023
 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
 Yellow spots caused by some rust fungus on a leaf of jumpseed (knotweed, Persicaria virginiana) on floodplain on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 3, 2022
 White to brown asexual stage of crust fungus Biscogniauxia atropunctata on a fallen tree on Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, June 17, 2018
 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
 Tissues of a tiny red sphere from underside of leaf of bluebonnet with white spots caused by a fungus(?), collected near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 May apple leaf 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 north from Montgomery. Texas, April 6, 2024
 Yellow spots on a leaf of May apple (Podophyllum peltatum) caused by teleutosori of rust fungus Allodus podophylli (Puccinia podophylli) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 10, 2021
 Orange spots of rust fungus Coleosporium ipomoeae on a leaf of Ipomoea lacunosa at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021
 Leaves of May apple (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 north from Montgomery. Texas, April 23, 2022
 Orange spots of rust fungus Coleosporium ipomoeae on underside of a leaf of Ipomoea lacunosa at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021
 Texture of orange spots of rust fungus Coleosporium ipomoeae on a leaf of Ipomoea lacunosa at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021
 Close-up of orange spots of rust fungus Coleosporium ipomoeae on a leaf of Ipomoea lacunosa at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021
 Flat winter rosette of stemless evening primrose (Oenothera triloba) with purple spots of spring dieback caused by a fungus Septoria oenotherae on Lake Somerville Trailway in area of Newman Bottom near Nails Creek Unit of Somerville Lake State Park. Texas, February 2, 2021
 Whitestar morning-glory (Ipomoea lacunosa) with orange spots from rust fungus Coleosporium ipomoeae at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021
 Leaves of whitestar morning-glory (Ipomoea lacunosa) with orange spots from rust fungus Coleosporium ipomoeae at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021
 Whitestar morning-glory (Ipomoea lacunosa) in bloom with orange spots from rust fungus Coleosporium ipomoeae at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021
 Orange, slimy substance slowly oozing from grapevine caused by fungus Fusicolla merismoides in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2021
 Orange slime caused by Deer Vomit fungus (Fusicolla merismoides) on oozing sap of grapevine in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2021
 Whitestar morning-glory (Ipomoea lacunosa) with a flower and a leaf with orange spots from rust fungus Coleosporium ipomoeae at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 19, 2021
 Close-up of orange slime caused by Deer Vomit fungus (Fusicolla merismoides) on oozing sap of grapevine in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2021
 Wart disease (false rust) caused by fungus Synchytrium geranii (Chytrids) on crane s bill (Geranium carolinianum) in Lick Creek Park. College Station, Texas, March 30, 2022
 Close-up of wart disease (false rust) caused by fungus Synchytrium geranii (Chytrids) on crane s bill (Geranium carolinianum) taken from Bee Creek Park. College Station, Texas, March 23, 2021
 Plant of crane s bill (Geranium carolinianum) with wart disease (false rust) caused by fungus Synchytrium geranii (Chytrids) taken from Bee Creek Park. College Station, Texas, March 23, 2021
 Leaves of crane s bill (Geranium carolinianum) with red galls caused by wart disease (false rust) by fungus Synchytrium geranii (Chytrids) taken from Bee Creek Park. College Station, Texas, March 23, 2021
 Malformed basal leaves of crane s bill (Geranium carolinianum) with wart disease (false rust) caused by fungus Synchytrium geranii (Chytrids) taken from Bee Creek Park. College Station, Texas, March 23, 2021
 Pine seedling with needle rust caused by fungus Coleosporium asterum on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Wart disease (false rust) caused by fungus Synchytrium geranii (Chytrids) on crane s bill (Geranium carolinianum) near the creek in Bee Creek Park. College Station, Texas, March 23, 2021
 Wart disease (false rust) caused by fungus Synchytrium geranii (Chytrids) on crane s bill (Geranium carolinianum) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
 Leaves of squaw-weed (Senecio ampullaceus) with light yellow areas on leaves caused by sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Asexual stage of crust fungus Biscogniauxia atropunctata on a fallen tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020
 Conidiospores (in lugol) from soft light brown anamorph (asexual stage) of fungus Hypoxylon rubiginosum, collected a day before in Sam Houston National Forest near Richards. Texas, April 3, 2023
 Conidiospores (in Melzer) from soft light brown anamorph (asexual stage) of fungus Hypoxylon rubiginosum, collected a day before in Sam Houston National Forest near Richards. Texas, April 3, 2023
 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
 Conidiophores and conidia (in Melzer) from soft light brown anamorph (asexual stage) of fungus Hypoxylon rubiginosum collected in Sam Houston National Forest near Richards. Texas, April 2, 2023
 Tiny bright orange cups of aecia 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
 Conidia (in Melzer) from soft light brown anamorph (asexual stage) of fungus Hypoxylon rubiginosum together with spores of some Ascomycete, collected a day before in Sam Houston National Forest near Richards. Texas, April 3, 2023
 Conidiophores and spores (conidia) (in Melzer) from soft light brown anamorph (asexual stage) of fungus Hypoxylon rubiginosum collected in Sam Houston National Forest near Richards. Texas, April 2, 2023
 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
 Conidia from soft light brown anamorph (asexual stage) of fungus Hypoxylon rubiginosum together with a large septate spore of some Ascomycete, collected a day before in Sam Houston National Forest near Richards. Texas, April 3, 2023
 Young fly agaric mushrooms Amanita persicina (Amanita muscaria var. persicina) on Chinquapin Trail in Huntsville State Park. Texas, December 15, 2018
 Oak leaves with brown spots caused by a fungus(?) on Richards Loop Trail in Sam Houston National Forest, Texas, November 19, 2020
 Dissected young fly agaric mushrooms Amanita persicina (Amanita muscaria var. persicina) on Chinquapin Trail in Huntsville State Park. Texas, December 15, 2018
 Wart disease (false rust) caused by fungus Synchytrium geranii (Chytrids) on crane s bill (Geranium carolinianum) in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, March 27, 2021
 Flat-topped goldenrod (Euthamia leptocephala) with leaf tar spots caused by gall midge Asteromyia euthamiae with a symbiotic fungus Botryosphaeria dothidea in Lick Creek Park. College Station, Texas, June 1, 2022
 Flat-topped goldenrod (Euthamia leptocephala) with leaf tar spots caused by gall midge Asteromyia euthamiae with a symbiotic fungus Botryosphaeria dothidea in Lick Creek Park. College Station, Texas, September 29, 2022
 Swelling of a stem of tansy mustard (Descurainia pinnata) caused by white rust fungus of crucifers (Albugo candida) at Lake Somerville Trailway under oaks near Flag Pond, near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Fungus Hypoxylon rubiginosum together with soft light brown anamorph (asexual stage) at its margins on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, April 2, 2023
 Sharp bend of a stem of tansy mustard (Descurainia pinnata) caused by white rust fungus of crucifers (Albugo candida) at Lake Somerville Trailway under oaks near Flag Pond, near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
 Close-up of crust fungus Hypoxylon rubiginosum and light brown anamorph (asexual stage) at its margins on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, April 2, 2023
 Close-up of crust fungus Hypoxylon rubiginosum with light brown fluffy anamorph (asexual stage) at its margins on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, April 2, 2023
 Bloomink blackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 11, 2018
 Tiny soft granules of anamorph (asexual stage) of crust fungus Hypoxylon rubiginosum(?) on an elm log in wet area on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 16, 2023
 Growth of tiny puffs of anamorph (asexual stage) of crust fungus Hypoxylon rubiginosum(?) on an elm log in wet area on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 16, 2023
 Aeciospores (orange) of mayapple rust fungus (Puccinia podophylli) collected in Sam Houston National Forest. Texas, March 4, 2023
 Conidia and conidiophores of anamorph (asexual stage) of crust fungus Hypoxylon rubiginosum growing as brown fluffy granules on elm wood under a microscope in KOH, collected on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 16, 2023
 Conidiophores and tissue of anamorph (asexual stage) of crust fungus Hypoxylon rubiginosum growing as soft tiny granules on elm wood under a microscope in KOH, collected on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 16, 2023
 Conidia and conidiophores of anamorph (asexual stage) of crust fungus Hypoxylon rubiginosum growing as soft tiny granules on elm wood under a microscope in KOH, collected on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 16, 2023
 Yellow corticioid fungus Hypoxylon rubiginosum together with is brown anamorph (asexual stage) around tunnels of bark beetles on an elm log in wet area on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 16, 2023
 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
 Fly agaric mushrooms (Amanita persicina, Amanita muscaria var. persicina) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, March 8, 2020
 Powdery mint mildew caused by fungus Neoerysiphe galeopsidis on henbit leaves near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 21, 2018
 Leaves of bitter dock (Rumex obtusifolius) with reddish purple blotches caused by fungus Ramularia rubella in Sosnovka Park. Saint Petersburg, Russia, May 30, 2019
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