 Shoot of hackberry in Bee Creek Park. College Station, Texas, March 13, 2023
 Young leaves of hackberry in Bee Creek Park. College Station, Texas, March 13, 2023
 Spider on shoot of hackberry (Celtis laevigatus) in Lick Creek Park. College Station, Texas, March 23, 2023
 Young leaves of hackberry (Celtis laevigata) in Wolf Pen Creek Park. College Station, Texas, March 30, 2023
 Shoots of hackberry (sugarberry, Celtis laevigata) in Lick Creek Park. College Station, Texas, March 7, 2023
 Young leaves of hackberry (sugarberry, Celtis laevigata) in Lick Creek Park. College Station, Texas, March 7, 2023
 Back lit leaves of hackberry (sugarberry, Celtis laevigata) in Lick Creek Park. College Station, Texas, March 7, 2023
 Spider on young leaves of hackberry (Celtis laevigatus) in Lick Creek Park. College Station, Texas, March 23, 2023
 Dried elm and hackberry leaves on the ground in Bee Creek Park. College Station, Texas, August 12, 2022
 Oyster mushrooms (Pleurotus ostreatus) at the base of a hackberry tree in Lick Creek Park. College Station, Texas, December 4, 2023
 Curled leaves of hackberry on the ground in Wolf Pen Creek Park. College Station, Texas, August 8, 2022
 Dried leaves of hackberry on the ground in Lick Creek Park. College Station, Texas, August 4, 2022
 Dried leaves of hackberry on the ground in Wolf Pen Creek Park. College Station, Texas, August 8, 2022
 Corticioid (crust) fungus on pecan, green ash or hackberry on Racoon Run Trail in Lick Creek Park. College Station, Texas, December 7, 2023
 Curled dried leaves of hackberry on the ground in Wolf Pen Creek Park. College Station, Texas, August 8, 2022
 Brown dried leaves of hackberry on the ground in Wolf Pen Creek Park. College Station, Texas, August 8, 2022
 Fallen drying leaves of hackberry on the ground in Lick Creek Park. College Station, Texas, August 4, 2022
 Corticioid mushroom Dendrothele macrodens on bark of a recently fallen big hackberry on a pipeline right of way in Lick Creek Park. College Station, Texas, January 9, 2023
 Cap of polypore mushroom Bresadolia craterella (Polyporus craterellus) on a fallen hackberry in wet area in Lick Creek Park. College Station, Texas, April 19, 2023
 Close-up of corticioid (crust) fungus on pecan, green ash or hackberry on Racoon Run Trail in Lick Creek Park. College Station, Texas, December 7, 2023
 Spores of corticioid fungus from pecan, green ash or hackberry, collected a day before on Racoon Run Trail in Lick Creek Park. College Station, Texas, December 8, 2023
 Close-up of corticioid mushroom Dendrothele macrodens on bark of a recently fallen large hackberry in Lick Creek Park. College Station, Texas, January 9, 2023
 Underside of polypore mushroom Bresadolia craterella (Polyporus craterellus) on a fallen hackberry in wet area in Lick Creek Park. College Station, Texas, April 19, 2023
 Close-up of a cap of polypore mushroom Bresadolia craterella (Polyporus craterellus) on a fallen hackberry in wet area in Lick Creek Park. College Station, Texas, April 19, 2023
 Dried curled leaves of mulberry, hackberry and other trees on the ground in Bee Creek Park. College Station, Texas, August 5, 2022
 Dried leaves of hackberry, elm and mustang grape on the ground in Lick Creek Park. College Station, Texas, August 4, 2022
 Corticioid mushroom Dendrothele macrodens on a fallen branch of hackberry around 20 meters tall, on sewage line right-of-way, in Lick Creek Park. College Station, Texas, January 15, 2023
 Side view of polypore mushroom Bresadolia craterella (Polyporus craterellus) on a fallen hackberry in wet area in Lick Creek Park. College Station, Texas, April 19, 2023
 Polygonal spores of corticioid mushroom Dendrothele macrodens from bark of a recently fallen big hackberry, collected a day before in Lick Creek Park. College Station, Texas, January 10, 2023
 Fungus Trichoderma viride on a stump of hackberry or oak on Racoon Run Trail in Lick Creek Park. College Station, Texas, August 24, 2022
 Brown rotting leaves of hackberry on the ground after recent rains in Lick Creek Park. College Station, Texas, August 19, 2022
 Polygonal spores at low magnification of corticioid mushroom Dendrothele macrodens from bark of a recently fallen big hackberry, collected a day before in Lick Creek Park. College Station, Texas, January 10, 2023
 Spores (in KOH) of chestnut brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) from the base of a hackberry tree, collected in Lick Creek Park. College Station, Texas, November 15, 2023
 Close-up of corticioid mushroom Dendrothele macrodens on a fallen branch of hackberry around 20 meters tall, on sewage line right-of-way, in Lick Creek Park. College Station, Texas, January 15, 2023
 Brown rotting leaves of green ash and hackberry on the ground after recent rains in Lick Creek Park. College Station, Texas, August 19, 2022
 Brown leaves of hackberry and elm on the ground after recent rains on Racoon Run Trail in Lick Creek Park. College Station, Texas, August 19, 2022
 Brown rotting leaves of mulberry and hackberry on the ground after recent rains in Lick Creek Park. College Station, Texas, August 19, 2022
 Polypore mushroom Bresadolia craterella (Polyporus craterellus) on a fallen secondary trunk of hackberry in wet area that was flooded a week before, in Lick Creek Park. College Station, Texas, April 19, 2023
 Underside of chestnut brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) at the base of a hackberry tree on Racoon Run Trail in Lick Creek Park. College Station, Texas, November 15, 2023
 Basidia and spores of chestnut brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) from the base of a hackberry tree, collected in Lick Creek Park. College Station, Texas, November 15, 2023
 Cystidia and spores of chestnut brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) from the base of a hackberry tree, collected in Lick Creek Park. College Station, Texas, November 15, 2023
 Large spores of unusual shape of corticioid mushroom Dendrothele macrodens from bark of a recently fallen big hackberry, collected a day before in Lick Creek Park. College Station, Texas, January 10, 2023
 Tissues (in Congo Red) of chestnut brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) from the base of a hackberry tree, collected in Lick Creek Park. College Station, Texas, November 15, 2023
 Brown rotting leaves of mustang grape and hackberry on the ground after recent rains in Lick Creek Park. College Station, Texas, August 19, 2022
 Polypore fungus Vitreoporus dichrous on a cut surface of a stump of hackberry or oak on Racoon Run Trail in Lick Creek Park. College Station, Texas, August 24, 2022
 Young growth of fungus Vitreoporus dichrous on a stump of hackberry or oak on Racoon Run Trail in Lick Creek Park. College Station, Texas, August 24, 2022
 Green growth of fungus Trichoderma viride on a stump of hackberry or oak on Racoon Run Trail in Lick Creek Park. College Station, Texas, August 24, 2022
 Unusual growth of fungus Vitreoporus dichrous on a stump of hackberry or oak on Racoon Run Trail in Lick Creek Park. College Station, Texas, August 24, 2022
 Green crust of fungus Trichoderma viride on a stump of hackberry or oak on Racoon Run Trail in Lick Creek Park. College Station, Texas, August 24, 2022
 Dry stems of box elder or hackberry with resupinate polypore mushroom Cerioporus mollis (Datronia mollis) collected in Bee Creek Park. College Station, Texas, January 5, 2023
 Stems of box elder or hackberry with common mazegill polypore mushroom Cerioporus mollis (Datronia mollis) collected in Bee Creek Park. College Station, Texas, January 5, 2023
 Polypore fungus Vitreoporus dichrous on upper surface of a stump of hackberry or oak on Racoon Run Trail in Lick Creek Park. College Station, Texas, August 24, 2022
 Spores shaped as viruses or blood clots of corticioid mushroom Dendrothele macrodens from bark of a recently fallen big hackberry tree, collected a day before in Lick Creek Park. College Station, Texas, January 10, 2023
 Spores (in KOH, spore print brown) of chestnut brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) from the base of a hackberry tree, collected in Lick Creek Park. College Station, Texas, November 15, 2023
 Brown leaves of muscat grape, hackberry and other trees on the ground after recent rains on Racoon Run Trail in Lick Creek Park. College Station, Texas, August 19, 2022
 Brown rotting leaves of mustang grape and black leaf of hackberry on the ground after recent rains in Lick Creek Park. College Station, Texas, August 19, 2022
 Large hackberry tree with recently fallen large branches with corticioid mushroom Dendrothele macrodens, on sewage line right-of-way, in Lick Creek Park. College Station, Texas, January 15, 2023
 Insect galls on mustang grape(?) in Bee Creek Park. College Station, Texas, April 9, 2021
 Chestnut brittlestem mushrooms Homophron spadiceum (Psathyrella spadicea) (cap 10 cm, stem 2 cm thick) at the base of a hackberry tree in area of oxbows, on Racoon Run Trail in Lick Creek Park. College Station, Texas, November 15, 2023
 Crustose lichens in ultraviolet light on bark of a hackberry in Lemontree Park. College Station, Texas, August 22, 2024
 Yellowish-green and brilliant red wart-like galls on leaf surfaces of poison ivy in Bee Creek Park. College Station, Texas, June 10, 2019
 Distorted leaves of common ragweed (Ambrosia artemisiifolia) with galls caused by eriophyid mites in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, August 25, 2021
 Puckered, irregular, wart-like galls on leaf surfaces of poison ivy produced by the eriophyid mite Aculops rhois (A. toxicophagus) in Bee Creek Park. College Station, Texas, June 10, 2019
 Shoot of hackberry in Bee Creek Park. College Station, Texas, March 21, 2024
 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
 Poison ivy leaf gall mite (irregular, wart-like light green to reddish-green bladder galls) in Bee Creek Park. College Station, Texas, June 10, 2019
 Young leaves of hackberry in Bee Creek Park. College Station, Texas, April 2, 2021
 Hackberry(?) bark in Lick Creek Park. College Station, Texas, November 10, 2020
 Shoots of hackberry tree in Bee Creek Park. College Station, Texas, March 25, 2024
 Reddish-green bladder galls on upper leaf surfaces of poison ivy produced by the eriophyid mite, Aculops rhois (A. toxicophagus, family Eriophyidae) in Bee Creek Park. College Station, Texas, June 10, 2019
 Young leaves of hackberry tree in Bee Creek Park. College Station, March 7, 2024
 Hackberry (Celtis laevigata)(?) in Lick Creek Park. College Station, Texas, March 22, 2019
 Small ant on bark of a hackberry tree in Bee Creek Park. College Station, Texas, April 9, 2021
 Back lit leaves on hackberry tree in Bee Creek Park. College Station, Texas, March 21, 2024
 Young leaves on hackberry tree in Bee Creek Park. College Station, Texas, March 21, 2024
 Young leaves of hackberry tree in Lick Creek Park. College Station, Texas, March 12, 2024
 Branch of Haloxylon salicornicum (Hammada elegance) with flower galls (bird-beak-shaped galls) taken from a roadside of Salwa Highway. Southern Qatar, April 8, 2016
 Bark of hackberry tree near Racoon Run Trail in Lick Creek Park. College Station, Texas, January 4, 2011
 Yellow leaves of hackberry damaged by a fungus in Wolf Pen Creek Park. College Station, Texas, November 2, 2021
 Texture of bark of hackberry on Racoon Run Trail in Lick Creek Park. College Station, Texas, December 21, 2010
 Bat observation cabin near Deer Run Trail in Lick Creek Park. College Station, Texas, August 22, 2023
 Shoot of water-primrose (Ludwigia) from Lick Creek Park. College Station, Texas, August 8, 2023
 Corky bark of hackberry tree near Racoon Run Trail in Lick Creek Park. College Station, Texas, January 4, 2011
 Bark rash lichen (Pyrenula cruenta) on hackberry in Lick Creek Park. College Station, Texas, January 9, 2019
 Cap of Leucocoprinus cretaceus mushroom on rotting wood of elm, hackberry or oak in Lick Creek Park. College Station, Texas, September 12, 2022
 Overgrown bat observation cabin near Deer Run Trail in Lick Creek Park. College Station, Texas, August 22, 2023
 Glossy leaves of water-primrose (Ludwigia) from Lick Creek Park. College Station, Texas, August 8, 2023
 Small matweed (Guilleminea densa, Amaranthaceae) from a lawn in Bee Creek Park. College Station, Texas, August 16, 2023
 Twig of Haloxylon salicornicum (Hammada elegance) with flower galls (bird-beak-shaped galls) taken from roadside of Salwa Road in area of Rawdat Ekdaim. Southern Qatar, April 11, 2015
 Dry oak and hackberry leaves and sandstone with algae on a path in ultraviolet light in Lick Creek Park. College Station, Texas, November 8, 2024
 Sapsucker holes in warty bark of hackberry near Racoon Run Trail in Lick Creek Park. College Station, Texas, January 14, 2011
 Underside of Leucocoprinus cretaceus mushroom on rotting wood of elm, hackberry or oak in Lick Creek Park. College Station, Texas, September 12, 2022
 Haloxylon salicornicum (Hammada elegance) with bird-beak-shaped galls (flower galls) in windblown sand on roadside of Salwa Road in area of Rawdat Ekdaim. Southern Qatar, April 11, 2015
 Haloxylon salicornicum (Hammada elegance) with flower galls (bird-beak-shaped galls) in windblown sand on roadside of Salwa Road in area of Rawdat Ekdaim. Southern Qatar, April 11, 2015
 Colorful fruit-like galls (flower, or bird-beak-shaped galls) on Haloxylon salicornicum (Hammada elegance) taken from roadside of Salwa Road in area of Rawdat Ekdaim. Southern Qatar, April 11, 2015
 Irregular, wart-like light green to reddish-green bladder galls on leaf surfaces of poison ivy produced by leaf gall mite Aculops toxicophagus in Bee Creek Park. College Station, Texas, June 10, 2019
 Powdery medallion lichen (Dirinaria applanata) on a small hackberry tree in Lick Creek Park. College Station, Texas, January 9, 2019
 Sugarberry (hackberry, Celtis laevigata) tree bark on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 17, 2013
 Crimson warts of bark rash lichen (Pyrenula cruenta) on hackberry in Lick Creek Park. College Station, Texas, January 9, 2019
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