 Loop trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 23, 2009
 Loop trail in mist in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 23, 2009
 Loop trail at morning in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 23, 2009
 Vines on loop trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 23, 2009
 Yaupon holly on loop trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 23, 2009
 Poison ivy near Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Bluebonnets at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Wildflowers in mist at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Field of bluebonnets at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Field of wildflowers at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Field of wildflowers in mist at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Field of bluebonnets and paintbrush flowers at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Field of bluebonnets and paintbrush flowers in mist at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 22, 2009
 Photographer with a tripod taking pictures of a field of bluebonnets at Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2009
 Trail through a forest in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 23, 2009
 Turtle on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2009
 Molting grasshopper in dew on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2009
 Heavy dew near loop trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 24, 2009
 Green berries of poison ivy on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2009
 Pink powderpuff (Mimosa strigillosa) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2009
 Slender orange bush lichen (Teloschistes exilis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 12, 2009
 Spring ladies-tresses (Spiranthes vernalis) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2009
 Indian paintbrush (Castilleja indivisa) near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 21, 2009
 Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2012
 Bee on pink powderpuff flower (Mimosa strigillosa) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 15, 2009
 Lecanora lichen on hackberry(?) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 24, 2020
 Script lichen (Graphis) on bark of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Lichen Dirinaria confusa(?) on bark of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Perforated ruffle lichen (Parmotrema perforatum) in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 24, 2020
 A pond from a dam in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 Forest near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 A pond from a dam at sunrise in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 Foggy pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 Forest in mist in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 23, 2009
 Dry leaf near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 A pond at morning in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 A pond at sunrise in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 13, 2009
 Slender orange bush lichen (Teloschistes exilis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 24, 2020
 Collema lichen on a branch of a big Maclura tree in a forest in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 2, 2018
 A field of wildflowers near Old Washington Town Site Loop Trail of Washington-on-the-Brazos State Historic Site. Washington, Texas, June 2, 2007
 Red berries of yaupon holly in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 23, 2009
 Fall colors of poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 23, 2009
 Bushy bluestem (Andropogon glomeratus) in Washington-on-the-Brazos State Historic Site, on Loop Trail. Washington, Texas, November 16, 2008
 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
 Common button lichen (Buellia stillingiana) on hackberry(?) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 24, 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
 Tiny flowers of Small bluets (Star-violet, Hedyotis crassifolia) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 15, 2009
 Cockleshell mushrooms Lentinellus castoreus on an oak log in red cedar forest Old Washington Town Site Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2020
 White fringe lichen (Heterodermia albicans) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Maritime bluestem grass (Andropogon tenuispatheus) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Fruit of osage orange on a picnic table near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 23, 2009
 Common button lichen (Buellia stillingiana) (black) together with Lecanora on hackberry(?) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 24, 2020
 Diamondflowers (Stenaria nigricans, Hedyotis nigricans) in dew on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2009
 Late blooming Indian paintbrush (Castilleja indivisa) on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Small pleated inkcap mushroom (Parasola plicatilis, Coprinus plicatilis) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 6, 2009
 A field near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 8, 2012
 Fog on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Small Dirinaria lichen in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Dirinaria(?) lichen on hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Dirinaria lichen with apothecia in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Sunrise on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Dry trees on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 8, 2011
 Foliage on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 8, 2011
 Dry forest on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 8, 2011
 Goldenrod on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 21, 2008
 Dry grass on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 20, 2013
 Thistle flower near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2008
 Wildflowers in Washington-on-the-Brazos State Historic Site, near loop trail. Washington, Texas, June 2, 2007
 Field of flowers near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 4, 2012
 Medallion lichen (Dirinaria confusa) on an oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
 Lichen Lecanora louisianae(?) on bark in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Fringe lichen (Heterodermia) on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Script lichen (Graphis) on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Ruffle lichen Parmotrema submarginale on an oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
 Fringe lichen (Heterodermia) on hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Golden eye lichen (Teloschistes chrysophthalmus)(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 1, 2012
 Dust lichen (Lepraria) on oak bark in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 8, 2019
 Saucer lichen Ochrolechia on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Pale brown Lecanora lichen in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 8, 2019
 Medallion lichen Dirinaria confusa on an oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
 Fringe lichen Heterodermia on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
 Ruffle lichen (Parmotrema) on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Dry maple leaf on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 27, 2013
 Bluebonnet in morning dew near Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 19, 2008
 Alyssum like flowers on Wildflower Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 3, 2020
 Dry tree foliage on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Bluebonnet flowers in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, March 28, 2008
 Foggy sunrise on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Dead cedar on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 16, 2011
 Mexican hat flower with a bee on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
 Vervain (Verbena) on Loop Trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 9, 2008
 Bluebonnet flowers in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, April 5, 2008
 Vervain flower in dew in Washington-on-the-Brazos State Historic Site, near Loop Trail. Washington, Texas, April 5, 2008
 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
 Medallion lichen (Dirinaria confusa) on hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Powdery medallion lichen (Dirinaria applanata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Details of Caloplaca lichen on a sandstone rock in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 21, 2020
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