 Scaly stippled lichen (Endocarpon pusillum) on a thin layer of soil over exposed limestone rocks overgrown by prickly pears near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Scaly stippled lichen (Endocarpon pusillum) on a thin layer of soil over exposed limestone rocks overgrown by prickly pears near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Dark crust of scaly stippled lichen (Endocarpon pusillum) on a thin layer of soil over exposed limestone rocks overgrown by prickly pears in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Scaly stippled lichen (Endocarpon pusillum) on a thin layer of soil over exposed sandstone rocks in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2020
 Dried scaly stippled lichen (Endocarpon pusillum) with moss on sandstone rocks in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2020
 Prickly pears (Opuntia) on exposed limestone rocks near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Caloplaca and a lichen Endocarpon pusillum on a sandstone rock in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 21, 2020
 Caloplaca together with a black lichen Endocarpon pusillum on a sandstone rock in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 21, 2020
 Close-up of some black and greenish scaly lichen on sandstone rocks in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 Sandstone rock with Caloplaca and Endocarpon pusillum lichens in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 21, 2020
 Some black and greenish scaly lichen on sandstone rocks in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 Pad of prickly pears in a forest in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Yellow flowers of prickly pears (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Skeleton of a dry pad of prickly pears cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2020
 Dry pad skeleton of prickly pears cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Firedot lichen Caloplaca on limestone outcrop near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 13, 2020
 Pad of prickly pears (Opuntia) with a bug in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 22, 2022
 Prickly pears in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Skeleton of a dry pad of prickly pears cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 1, 2024
 Blooming prickly pears cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 30, 2011
 Overgrown corner of a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 11, 2014
 Slender orange bush lichen (Teloschistes exilis) on a thin oak branch in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Close-up of purple spots on pads of a prickly pear cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 Close-up of a seedling and some moss on sandy soil in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 Overgrown pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 20, 2018
 Pores of mushroom Picipes melanopus (Polyporus melanopus) (cap is thin around 2mm, pore layer occupies 2/3 of thickness) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 15, 2024
 Close-up of tan pinkgill mushrooms (Rhodocybe gemina, Clitopilus geminus)(?) near an osage orange log in area of an old overgrown farm in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 2020
 Winter rosette of white prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Close-up of giant reed (Arundo donax) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Close up of medallion lichen (Dirinaria confusa) on an oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
 Close up of medallion lichen (Dirinaria confusa) on hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Close up of ruffle lichen Parmotrema submarginale on an oak branch in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
 White prickly poppy (Argemone albiflora) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2024
 Close up of fringe lichen (Heterodermia) on acacia (huisache) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Close up of fringe lichen (Heterodermia) on small cedar elm tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Close-up of female flowers of creeping lovegrass (Eragrostis reptans) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Overgrown edge of prairie in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2020
 Scaly brown Agaricus mushrooms in a forest in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Medallion lichen (Dirinaria confusa) on Liberty Oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Close up of a green grasshopper sitting on a white prickly poppy flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2009
 Dissected scaly brown Agaricus mushrooms in a forest in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 28, 2020
 Orange Dacrymyces(?) mushrooms on a small dried tree in a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Bushes overgrown by mustang grape (Vitis mustangensis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2020
 Flower of prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2020
 Orange Dacrymyces(?) mushrooms on bark of a small dried tree in a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Powdered ruffle lichen (Parmotrema hypotropum) and cartilage lichen (Ramalina celastri) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2024
 Orange Dacrymyces(?) mushrooms on barkless section of a small dried tree in a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Purplish pads of a prickly pear cactus (Opuntia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 Basal leaves of prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 Seedling of white prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 7, 2024
 Leaves with water drops of prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 Rosette of leaves of white prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 7, 2024
 Small rosette of leaves of prickly poppy (Argemone albiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 White prickly poppy flower on field near Old Washington Town Site Loop Trail of Washington-on-the-Brazos State Historic Site. Washington, Texas, June 2, 2007
 Close-up of beech woodwart fungus (Hypoxylon fragiforme) on a fallen tree branch in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 5, 2020
 Seedlings and some moss on sandy soil in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 Young tan pinkgill mushrooms (Rhodocybe gemina, Clitopilus geminus)(?) in area of an old overgrown farm in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 2020
 Tan pinkgill mushrooms (Rhodocybe gemina, Clitopilus geminus)(?) among oak leaves in area of an old overgrown farm in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 2020
 Southern strap lichen (Ramalina stenospora) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2024
 Cartilage lichen (Ramalina celastri) on a twig when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2024
 Masses of tan pinkgill mushrooms (Rhodocybe gemina, Clitopilus geminus)(?) among oak leaves in area of an old overgrown farm in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 2020
 Tan pinkgill mushrooms (Rhodocybe gemina, Clitopilus geminus)(?) near an osage orange log in area of an old overgrown farm in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 2020
 Southern strap lichen (Ramalina stenospora) on a twig of elm when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2024
 Powdered ruffle lichen (Parmotrema hypotropum) and Ramalina when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2024
 Close up of horse apple (osage orange) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 1, 2012
 Cross section of tan pinkgill mushrooms (Rhodocybe gemina, Clitopilus geminus)(?) among oak leaves in area of an old overgrown farm in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 27, 2020
 Thin powdery corticioid fungus with irregular surface on black substrate on a pecan(?) log in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2023
 Trail behind a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 25, 2020
 Area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Dry vegetation near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 25, 2020
 Big oak near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 24, 2021
 Pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 11, 2014
 A pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2013
 Broken dam of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2024
 View from a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2024
 Partially dry pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2013
 Dry reeds near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2013
 Grasses near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 11, 2014
 Weeds in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Amaranth plant in a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
 Some leafy shoot near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 4, 2020
 Shoot of amaranth near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Amaranth flowers near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 Close up of Phaeophyscia lichen on a large huisache (acacia) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
 Close up of slender orange bush lichen (Teloschistes exilis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 8, 2019
 View in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 30, 2022
 Sow thistle seedling near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2013
 Bluebonnet seedling near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2013
 Bluebonnet rosette near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2013
 Live oaks near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 24, 2021
 Shoot of Amaranth in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2020
 Smartweed (Persicaria, Polygonum) in a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 18, 2020
 Goldenrod (Solidago) in a dried pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 12, 2020
 Rattlebush (Sesbania drummondii) near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 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
 A pond filling by water after a draught in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Old peace of wood on the bottom of a dry pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Old osage orange tree near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 24, 2021
 Spiny leaves of a thistle near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 7, 2024
|