 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
 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
 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
 Leaves of goldenrod Solidago canadensis with raised white cushions caused by gall midges Asteromyia carbonifera and symbiotic fungus Botryosphaeria dothidea inside the galls on Richards Loop Trail in Sam Houston National Forest. Texas, July 10, 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
 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
 Fluffy seeds of tall goldenrod (Solidago) on Richards Loop Trail in Sam Houston National Forest. Texas, January 21, 2024
 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
 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
 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) 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
 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 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
 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
 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
 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
 Tall goldenrod (Solidago altissima) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 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
 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
 Woolly growth (gall) on a dry oak leaf on Richards Loop Trail in Sam Houston National Forest. Texas, November 5, 2020
 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
 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
 Milky false truffle mushroom Zelleromyces cinnabarinus placed on an oak leaf with a gall on Richards Loop Trail in Sam Houston National Forest. Texas, December 28, 2021
 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
 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
 Gall on roots of crane s bill (Geranium carolinianum) caused by fungus Synchytrium geranii (Chytrids) taken from Bee Creek Park. College Station, Texas, March 23, 2021
 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
 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
 Dissected inflated oak gall on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 10, 2021
 Cross section of an oak gall on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 10, 2021
 Goldenrod (Solidago) on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, October 1, 2020
 Parasitic fungus Hypomyces chrysospermus on a false truffle (Rhizopogon) on Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, September 6, 2024
 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
 Fleshy gall on a cowberry leaf caused by the fungus Exobasidium vaccinii taken from Posiolok near Vyritsa, south from Saint Petersburg, Russia, July 9, 2017
 Pine seedling with needle rust caused by fungus Coleosporium asterum on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Asteromyia gall midge fungus (Botryosphaeria dothidea) on leaves of flat-topped goldenrod (Euthamia leptocephala) in Lick Creek Park. College Station, Texas, June 1, 2022
 Section of a false truffle (Rhizopogon) with a parasitic fungus Hypomyces chrysospermus in ultraviolet light from Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, September 6, 2024
 Red velvety patches on a birch leaf caused by the velvet erineum gall eriophyid mite in Sosnovka Park. Saint Petersburg, Russia, June 29, 2017
 Velvety patches on a birch leaf caused by the velvet erineum gall eriophyid mite in Sosnovka Park. Saint Petersburg, Russia, August 21, 2017
 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
 Goldenrod in dew in Sam Houston National Forest, on Little Lake Creek Loop Trail. Richards, Texas, October 4, 2008
 Tooth fungus Steccherinum ochraceum(?) on a dry Yaupon stem on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, January 1, 2024
 Close-up of corticioid fungus Steccherinum ochraceum(?) on a dry Yaupon stem on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, January 1, 2024
 Gall-like corticioid fungus on a fallen oak in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020
 Insect gall on a shoot of blackberry in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 20, 2019
 Gall-like corticioid fungus in cavities of a fallen oak in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020
 Gall-like corticioid fungus on a broken end of a fallen oak in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020
 Ochre Spreading Tooth fungus (Steccherinum ochraceum)(?) together with Hypoxylon on a dry Yaupon stem on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, January 1, 2024
 Gall-like corticioid fungus in a small cavity of a rotting oak in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020
 Oak leaves with brown spots caused by a fungus(?) on Richards Loop Trail in Sam Houston National Forest, Texas, November 19, 2020
 Distorted oak leaves caused by insect larvae(?) on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
 Azalea gall fungus Exobasidium vaccinii on leaves of rhododendron in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, June 26, 2019
 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
 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
 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
 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
 Curling of leaves caused by blackberry psyllid (Trioza tripunctata) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
 Leaves of hickory with black spots and holes caused by insects(?) on Richards Loop Trail in Sam Houston National Forest. Texas, June 2, 2021
 Curling of leaves caused by blackberry psyllid (Trioza tripunctata) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
 Soft fibrecap (Inocybe) mushrooms in a forest, with hollow stem, on Richards Loop Trail in Sam Houston National Forest. Texas, May 6, 2023
 Hairy stem of bluestem grass on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
 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
 Gall-like corticioid fungus together with Xylaria flabelliformis (Xylaria cubensis) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020
 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
 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
 Malformed white birch bolete mushroom (bog bolete, Leccinum holopus) with a swollen stem damaged by gall-forming fungus near Kavgolovskoe Lake south from Oselki, 8 miles north from Saint Petersburg. Russia, September 23, 2015
 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
 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
 Cap and stem of mushroom Entoloma hirtipes on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 29, 2018
 Gills of soft fibrecap (Inocybe) mushrooms with hollow stem, on Richards Loop Trail in Sam Houston National Forest. Texas, May 6, 2023
 Shoot of peppervine on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Tall goldenrod (Solidago) on a sewage line right of way at rainy weather in Lick Creek Park. College Station, Texas, January 25, 2024
 Spores (in KOH) of soft fibrecap (Inocybe) mushrooms with hollow stem collected on Richards Loop Trail in Sam Houston National Forest. Texas, May 6, 2023
 Side view of soft fibrecap (Inocybe) mushrooms with hollow stem, on Richards Loop Trail in Sam Houston National Forest. Texas, May 6, 2023
 Cap of a large bolete mushroom with yellow pores and pink stem on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 Large bolete mushroom with yellow pores and pink stem on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 Some small grass on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Young reddish leaves of oak on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Blooming blackberry on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Shoot of mustang grape on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Shoot of hickory on Road FS 203 near on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Flower of blackberry on Forest Service Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, March 3, 2024
 Gall-like corticioid fungus and Xylaria flabelliformis (Xylaria cubensis) in a small cavity of a rotting oak in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020
 Violet cap of some thin-stem webcap (Cortinarius) mushroom on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 30, 2018
 Spores of a large bolete with yellow pores, pink stem collected on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 Some violet thin-stem webcap (Cortinarius) mushrooms on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 30, 2018
 Pinkgill mushroom Entoloma hirtipes with a straight stem on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 29, 2018
 Stem of black elfin saddle mushroom Helvella lacunosa on Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, February 18, 2023
 Underside of a large bolete mushroom with yellow pores and pink stem on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 Blue spiderwort (Tradescantia) flowers on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
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