 Galls on leaves of goldenrod Solidago canadensis caused by gall midges Asteromyia carbonifera with symbiotic fungus Botryosphaeria dothidea on Richards Loop Trail in Sam Houston National Forest. Texas, July 10, 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
 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
 Gall fungus Botryosphaeria dothidea (in Congo Red solution) collected from leaf tar spots on goldenrod on Richards Loop Trail in Sam Houston National Forest. Texas, July 10, 2022
 Asteromyia gall midge fungus (Botryosphaeria dothidea) on leaves of flat-topped goldenrod (Euthamia leptocephala) in Lick Creek Park. College Station, Texas, June 1, 2022
 Artichoke-shaped gall on on the top of a shoot of goldenrod Solidago canadensis on Richards Loop Trail in Sam Houston National Forest. Texas, July 10, 2022
 Fungus Botryosphaeria dothidea (in Congo Red solution) collected from leaf tar spots on goldenrod on Richards Loop Trail in Sam Houston National Forest. Texas, July 10, 2022
 Gall on a stem of Solidago caused by a parasitic goldenrod gall fly Eurosta solidaginis on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Gall on a stem of Solidago caused by a parasitic goldenrod gall fly Eurosta solidaginis on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Tissues of Asteromyia gall midge fungus (Botryosphaeria dothidea) under a microscope, collected in Lick Creek Park. College Station, Texas, June 1, 2022
 Ball-shaped swelling on a stem of Canada goldenrod (Solidago canadensis) caused by gall fly Eurosta solidagnis in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 2, 2022
 Dissected ball-shaped swelling on a stem of Canada goldenrod (Solidago canadensis) caused by gall fly Eurosta solidagnis in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 2, 2022
 Persimmon leaf blister galls caused by bead gall mite Aceria theospyri on leaves of persimmon (Diospyros virginiana) on Richards Loop Trail in Sam Houston National Forest. Texas, May 26, 2022
 Tall goldenrod (Solidago altissima) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
 Clumps of white hair caused by gall midges (gall gnats, Cecidomyidae) on glasswort Salsola imbricata on rocky ridge of Jebel Fuwairit. Qatar, January 31, 2015
 Glasswort Salsola imbricata with clumps of white hair caused by gall midges (gall gnats, Cecidomyidae) in a village of Al Mashrab in area of Ras Laffan Farms. Northern Qatar, October 6, 2014
 Glasswort Salsola imbricata with dense growth of white hairs caused by gall midges (gall gnats, Cecidomyidae) in a village of Al Mashrab in area of Ras Laffan Farms. Northern Qatar, October 6, 2014
 Fluffy seeds of tall goldenrod (Solidago) on Richards Loop Trail in Sam Houston National Forest. Texas, January 21, 2024
 Dry seeds of tall goldenrod (Solidago) in windy and dry weather on Richards Loop Trail in Sam Houston National Forest. Texas, January 21, 2024
 Fluffy seed head of tall goldenrod (Solidago) in dry weather on Richards Loop Trail in Sam Houston National Forest. Texas, January 21, 2024
 Glasswort (Salsola imbricata) with fluffy growth caused by gall midges (gall gnats, Cecidomyidae) on rocky ridge of Jebel Fuwairit. Qatar, January 31, 2015
 Woolly growth on glasswort (Salsola imbricata) caused by gall midges (gall gnats, Cecidomyidae) taken from Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, May 29, 2015
 Fluffy seed head of small goldenrod (Solidago) on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, January 21, 2024
 Fluffy seeds of tall goldenrod (Solidago) forming dome-like shape during low air humidity on Richards Loop Trail in Sam Houston National Forest. Texas, January 21, 2024
 Glasswort (Salsola imbricata) with fluffy growth caused by gall midges (gall gnats, Cecidomyidae) in a village of Al Mashrab in area of Ras Laffan Farms. Northern Qatar, October 6, 2014
 Galls caused by fungus Exobasidium symploci-japonicae on sweetleaf on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, September 24, 2022
 Oak leaves with brown spots caused by a fungus(?) on Richards Loop Trail in Sam Houston National Forest, Texas, November 19, 2020
 Close up of strawberry oak galls caused by wool-sower gall wasp (Callirhytis seminator) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, March 24, 2018
 Fuzzy strawberry oak galls caused by wool-sower gall wasp (Callirhytis seminator) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, March 24, 2018
 Sweetleaf (Symplocos tinctoria) with galls caused by fungus Exobasidium symploci-japonicae on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, September 24, 2022
 Distorted oak leaves caused by insect larvae(?) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
 Galls caused by fungus Exobasidium symploci-japonicae on sweetleaf under a microscope (in KOH, x40 objective), collected on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, September 24, 2022
 Woolly growth (galls) on underside of a hickory(?) leaf on Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, July 19, 2022
 Curling of leaves caused by blackberry psyllid (Trioza tripunctata) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
 Curling of leaves caused by blackberry psyllid (Trioza tripunctata) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
 Galls (numerous pale green warts) on leaves of common ragweed (Ambrosia artemisiifolia) caused by eriophyid gall mites at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 30, 2021
 Phylloxera galls on hickory leaves on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Leaves of goldenrod (Solidago) with yellow spots from goldenrod rust fungus Coleosporium solidaginis (Coleosporium asterum)(?), collected over a sewage line in Lick Creek Park. College Station, Texas, August 3, 2023
 Phylloxera galls on hickory leaves on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, May 2, 2020
 Leaves of goldenrod (Solidago) showing yellow spots with uredinia of goldenrod rust fungus Coleosporium solidaginis (Coleosporium asterum)(?), collected over a sewage line in Lick Creek Park. College Station, Texas, August 3, 2023
 Clumps of white hair by gall midges (gall gnats, Cecidomyidae) of glasswort Salsola imbricata taken from a village of Al Mashrab in area of Ras Laffan Farms. Northern Qatar, October 6, 2014
 Close-up of Phylloxera galls on hickory leaves on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, May 2, 2020
 Texture of Phylloxera galls on hickory leaves on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, May 2, 2020
 Uderside of leaves of goldenrod (Solidago) showing yellow spots with uredinia of goldenrod rust fungus Coleosporium solidaginis (Coleosporium asterum)(?), collected over a sewage line in Lick Creek Park. College Station, Texas, August 3, 2023
 Goldenrod (Solidago canadensis) in Lick Creek Park. College Station, Texas, October 3, 2008
 Lower surface of hickory leaves with Phylloxera galls on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, May 2, 2020
 Leaves of hairy bush clover (Lespedeza hirta) with rust fungus Uromyces lespedezae or may be Cercospora on Richards Loop Trail in Sam Houston National Forest. Texas, July 10, 2022
 Fleshy galls on cowberry leaves caused by the fungus Exobasidium vaccinii in Posiolok near Vyritsa, south from Saint Petersburg, Russia, July 9, 2017
 Rose vervain (Glandularia canadensis) on Richards Loop Trail in Sam Houston National Forest. Texas, April 9, 2022
 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 18, 2022
 Black balls of rust fungus Uromyces lespedezae or may be Cercospora from underside of leaves of hairy bush clover collected on Richards Loop Trail in Sam Houston National Forest. Texas, July 10, 2022
 Circular dark purplish red spots with centers fading with age caused by Deutero fungus (Neocercosporidium smilacis, Cercospora smilacis) on leaves of common greenbrier (Smilax rotundifolia) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Canada wild rye (Elymus canadensis)(?) on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022
 Leaves of hickory with black spots and holes caused by insects(?) on Richards Loop Trail in Sam Houston National Forest. Texas, June 2, 2021
 Shoot of tall goldenrod (Solidago altissima) or may be fragrant goldenrod (S. odora) infected by goldenrod rust fungus Coleosporium solidaginis (Coleosporium asterum)(?), collected over a sewage line in Lick Creek Park. College Station, Texas, August 3, 2023
 Spikes of Canada wild rye (Elymus canadensis)(?) on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022
 Black balls of rust fungus Uromyces lespedezae or may be Cercospora from underside of leaves of hairy bush clover under a microscope at low magnifications collected on Richards Loop Trail in Sam Houston National Forest. Texas, July 10, 2022
 Swarming spine fungus (Mucronella calva) together with some white corticioid fungus on a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, February 27, 2022
 Plants of jumpseed (knotweed, Persicaria virginiana) on floodplain with yellowing caused by some fungus on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 3, 2022
 Tube galls caused by a midge Cecidomyia viticola on a leaf of mustang grape on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, April 27, 2022
 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
 Red cone-shaped galls caused by a midge Cecidomyia viticola on a leaf of mustang grape on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, April 27, 2022
 Close-up of tube galls caused by a midge Cecidomyia viticola on a leaf of mustang grape on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, April 27, 2022
 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 corticioid fungus on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 26, 2022
 Goldenrod (Solidago) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, October 6, 2022
 Hyphae of white corticioid fungus on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 26, 2022
 Texture of white corticioid fungus on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 26, 2022
 Close-up of white corticioid fungus on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, January 26, 2022
 Some white fuzzy corticioid fungus on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, March 9, 2022
 Greenbrier leaves with rust fungus Puccinia smilacis, collected on Richards Loop Trail in Sam Houston National Forest. Texas, March 9, 2022
 Goldenrod (Solidago) on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, October 1, 2020
 Close-up of a gall caused by the fungus Exobasidium symploci-japonicae in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 20, 2021
 Bur-like seed capsules with hooks of Canadian black snakeroot (Sanicula canadensis) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
 Leaves of Canadian black snakeroot (Sanicula canadensis) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 16, 2022
 Pine seedling with needle rust caused by fungus Coleosporium asterum on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Rust fungus Puccinia smilacis on greenbrier leaves under a microscope, 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
 Galls caused by the fungus Exobasidium symploci-japonicae on sweetleaf (Symplocos tinctoria) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 20, 2021
 Galls caused by the fungus Exobasidium symploci-japonicae on sweetleaf (Symplocos tinctoria) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 10, 2019
 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
 Flower buds of goldenrod (Solidago) on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, October 1, 2020
 Yellow flowers of goldenrod (Solidago) on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, October 1, 2020
 Gall caused by the fungus Exobasidium symploci-japonicae on a young shoot of sweetleaf in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 20, 2021
 Flowers of sweetleaf (Symplocos tinctoria) with galls caused by the fungus Exobasidium symploci-japonicae in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 10, 2019
 Galls caused by the fungus Exobasidium symploci-japonicae on a tree of sweetleaf (Symplocos tinctoria) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 10, 2019
 Young leaves of chamberbitter plant (stonebreaker, Phyllanthus niruri) on Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2022
 White corticioid fungus on underside of a burned pine log on Richards Loop Trail in Sam Houston National Forest. Texas, July 23, 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
 Close-up of white web-like corticioid fungus on underside of a burned pine log on Richards Loop Trail in Sam Houston National Forest. Texas, July 23, 2023
 Yellow leaves of laurel greenbrier (catbriar, bamboo vine, Smilax laurifolia) on Richards Loop Trail in Sam Houston National Forest. Texas, July 10, 2022
 Round spores inside asci of Ascomycete fungus Trichoderma citrinoviride (Hypocrea schweinitzii) from a fallen pine, collected on Richards Loop Trail in Sam Houston National Forest. Texas, December 17, 2023
 White corticioid fungus together with other crust fungi on underside of a burned pine log on Richards Loop Trail in Sam Houston National Forest. Texas, July 23, 2023
 White partially dried corticioid fungus on underside of a burned pine log on Richards Loop Trail in Sam Houston National Forest. Texas, July 23, 2023
 White corticioid fungus together with Gloeophyllum carbonarium on underside of a burned pine log on Richards Loop Trail in Sam Houston National Forest. Texas, July 23, 2023
 Web-like hyphae of white corticioid fungus together with Gloeophyllum carbonarium on underside of a burned pine log on Richards Loop Trail in Sam Houston National Forest. Texas, July 23, 2023
 Spores of white smooth corticioid fungus from underside of burned pines, collected on Richards Loop Trail in Sam Houston National Forest four days before. Texas, July 27, 2023
 Deutero fungus (Neocercosporidium smilacis, Cercospora smilacis) on leaves of common greenbrier (Smilax rotundifolia) on Richards Loop Trail in Sam Houston National Forest. Texas, June 29, 2022
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