 Warts on bark of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2010.
 Bark of dry hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Bark of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Decomposing bark of dry hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Detail of bark of dry hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Bark of dead hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Detail of bark of dead hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Corky bark of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 30, 2010
 Corky ridges of bark of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 30, 2010
 Old holes bored by sapsuckers in warty bark of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 30, 2010
 Detail of trunk of dry hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Blackened trunk of dead hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Berries of hackberry (Celtis laevigata) in animal droppings in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Bark of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 20, 2012
 Texture of bark of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 17, 2012
 Corky ridges of bark of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2010
 Warty bark of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Map-like texture of lichens on bark of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Warty texture of bark of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 17, 2012
 Close-up of texture of lichens on bark of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Warty texture with corky ridges of bark of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2010.
 Shoot of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2019
 Dry leaves of hackberry (Celtis laevigata) on roadside in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 6, 2013
 Soil pellets among dry leaves of hackberry (Celtis laevigata) on roadside in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 6, 2013
 Warts on the bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Tiny green liverwort on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Mixed crustose lichens on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Script lichen (Graphis) on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Some green liverwort and lichens on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Details of script lichen (Graphis) on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Medallion lichen (Dirinaria confusa) on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Texture of script lichen (Graphis) on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Saucer lichen Ochrolechia pallescens on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Saucer lichen Ochrolechia pallescens on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Medallion lichen (Dirinaria confusa) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Script lichen Graphis lineola on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Apothecia of saucer lichen Ochrolechia pallescens on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Saucer lichen Ochrolechia pallescens with apothecia on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Apothecia of medallion lichen (Dirinaria confusa) on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Close up of medallion lichen (Dirinaria confusa) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Sunken bloodspot lichen (Haematomma persoonii) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Tiny green liverwort and Graphis lichen on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Texture of white fringe lichen (Heterodermia albicans) on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Script lichen Graphis lineola and other crustose lichens on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Bark of osage orange near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Bark texture of osage orange in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 24, 2011
 Twisted bark of osage orange near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Details of bark of osage orange near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Peeling bark of dry hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Detail of hackberry bark in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Tiny liverwort on bark of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Peeling bark of dead hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Lichen Dirinaria confusa(?) on bark of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Script lichen (Graphis) on bark of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Script lichen Graphis lineola(?) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Common Button Lichen (Buellia stillingiana) on bark of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Dry leaves of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 10, 2011
 White fringe lichen (Heterodermia albicans) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Trunk of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 30, 2010
 Dark brown webcap (Cortinarius) mushrooms under elm and hackberry trees on a side of a road in juniper forest, with hackberry and other trees in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 1, 2021
 Hebeloma mushrooms under oak and hackberry trees in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 25, 2020
 Scar of a trunk of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 30, 2010
 A twig of hackberry tree with fruits in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Bark of Horse apple (osage orange) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 16, 2011
 Poisonpie mushrooms (Hebeloma crustuliniforme) under elm and hackberry trees in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 1, 2021
 White fringe lichen (Heterodermia albicans) on a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Dust lichen (Lepraria) on oak bark in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 8, 2019
 Brazos River from Robinson s Ferry Overlook in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 24, 2011
 Mushrooms Mycena corticola on a tree bark in area of Old Washington Town Site in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 6, 2021
 Young brown robust webcap (Cortinarius) mushrooms on a side of a road in juniper forest, with hackberry and other trees in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 1, 2021
 Orange bark of Horse apple (osage orange) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 16, 2011
 Prickly pear pad in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Leaves of hackberry tree with Asian woolly hackberry aphids Shivaphis celti (Homoptera: Aphididae) and sooty black mold (fungal growth) in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 5, 2019
 Tree base near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Bluebonnet seedling near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Robinson s Ferry Overlook in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 24, 2011
 Detail of a dead tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Prickly pear (Opuntia) pad in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 10, 2011
 Black crust of dried slime mold (Ascomycota) on bark of Maclura(?) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Shoot of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Texture of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Blooming hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Warty texture of bark of hackberry (Celtis laevigata) on Racoon Run Trail in Lick Creek Park. College Station, Texas, December 17, 2008
 Young leaves of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2021
 Young leaves of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Shoot of hackberry with flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Young leaves of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Rotten hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Shoots and flowers of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Drying hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Dead tree of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Young leaves of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 6, 2023
 Fresh leaves of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2022
 Fresh leaves of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 3, 2021
 Dirinaria(?) lichen on hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Trunk of dead hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Young tender leaves of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Shoot of poison ivy on a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2021
 Warty texture of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
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