 Lichens covering a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2010
 Fruticous lichens on a small tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 27, 2019
 Graphis and other lichens on bark of Huisache(?) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 24, 2020
 Mixed crustose lichens on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Some green liverwort and lichens on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Shoot of Virginia creeper vine on a tree, with patches of various lichens in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 15, 2009
 Shoot of Virginia creeper vine on a tree covered by bark lichens in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 15, 2009
 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
 Tree bark texture in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2010
 Trunk of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 30, 2010
 Brown tree bark in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2010
 Small caterpillars on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2010
 Rattan vine around a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 28, 2010
 Scar of a trunk of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 30, 2010
 Young tender leaves on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Masses of small web caterpillars on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2010
 Lichens in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Sandstone rock with Caloplaca and Endocarpon pusillum lichens in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 21, 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
 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
 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
 Various fruticose lichens 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
 Blooming poison ivy in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 1, 2010
 Crane fly in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 28, 2010
 Spiderwort (tradescantia) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Phacelia flowers in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 26, 2010.
 Phacelia flowers in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Beebalm (Monarda punctata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2010
 Green grasshopper in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2010
 Indian paintbrush in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 26, 2010.
 Folded leaves with dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2010
 Phaon(?) Crescent butterfly in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 29, 2010
 Buttercup (Ranunculus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Beebalm (Monarda punctata) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2010
 Small caterpillars in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2010
 Blooming plum(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Powderpuff (Mimosa strigillosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 23, 2010
 Ferry Road in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 28, 2010
 Reflections in a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 28, 2010
 Head of a grasshopper in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 9, 2010
 Old pecan tree near Brazos River in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 25, 2020
 Turnsole (Heliotropium procumbens) in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 9, 2010
 Blue vetch (Vicia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Bud of mustang grape vine in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Ladybug and millipede on milkweed in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2010
 Venus looking glass (Triodanis perfoliata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 1, 2010
 Engelmann daisy (Engelmannia pinnatifida) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 29, 2010
 Turnsole (Heliotropium indicum) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 9, 2010
 Venus looking glass (Triodanis perfoliata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
 Young tender leaves of elm(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Fire ants mound in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Orange lantana flowers with dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 18, 2010
 Cloud reflections in a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 28, 2010
 Bud of red buckeye (Aesculus pavia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Spotted beebalm (Monarda punctata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
 Mexican hat flowers (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
 Flower head of field thistle in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
 Bluebonnet (lupin) seedling in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 11, 2010
 Wild Carrot (Daucus pusillus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
 Insect eggs on a leaf in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2010
 Mexican hat flowers (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2010
 White avens (Geum canadense) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
 Butterfly in dew (ventral view) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 21, 2010
 Lazy daisy (Aphanostephus skirrhobasis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
 Slender orange-bush (Teloschistes exilis) and other fruticose lichens 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
 Mistletoe twig with white berries in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2010.
 White succulent berries of mistletoe in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2010.
 Flower buds of bluebonnet (lupin) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Pineywoods cattle on Barrington Farm in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2010.
 Scarlet pimpernel (Anagallis arvensis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 31, 2010.
 Variegated Fritillary (Euptoieta claudia) butterfly in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 29, 2010
 Flower head of Mexican hat (Ratibida columnaris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2010
 Mooing Pineywoods ox on Barrington Farm in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2010.
 Back-lit leaf of mustang grape in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 31, 2010.
 Catchweed bedstraw (Galium aparine) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Scarlet spiderling (Boerhavia diffusa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 18, 2010
 Young grasshopper on Mexican hat flower in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 5, 2010
 Turnsole (Heliotropium indicum) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 9, 2010
 Green milkweed (Asclepias viridis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2010
 Emerging bluebonnet (lupin) seedling in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 11, 2010
 Green lynx spider with spiderlings in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 11, 2010
 Flowers of Spotted beebalm (Monarda punctata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 23, 2010
 Common Buckeye butterfly (Junonia coenia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 29, 2010
 Morning Glory (Ipomoea cordatotriloba) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 21, 2010
 Toad flax (Linaria texana) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 19, 2010.
 Puncturevine (Caltrop, Tribulus terrestris) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 7, 2010
 Fragrant flatsedge (Cyperus odoratus)(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2010
 Seeds of Wild Carrot (Daucus pusillus) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2010
 Violet ruella (Ruellia nudiflora) in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 18, 2010
 Yellow Water-weed (Ludwigia peploides) near a pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 29, 2010
 Showy evening primrose (Oenothera speciosa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 17, 2010
 Back-lit scarlet pimpernel (Anagallis arvensis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 31, 2010.
 Caterpillar of black swallowtail butterfly (Papilio polyxenes) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 29, 2010
 Corky bark of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 30, 2010
 Caterpillar of black swallowtail butterfly (Papilio polyxenes) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 23, 2010
 Seeds of prairie-mimosa (Desmanthus illinoensis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 12, 2010
 Common Buckeye butterfly (Junonia coenia) in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 9, 2010
 Sleeping Buckeye butterfly (Junonia coenia) in dew in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 9, 2010
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