 Peeling bark of Texas madrone on Devils Hall Trail in Pine Spring Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 Texas madrone (Arbutus xalapensis) on Devils Hall Trail in Pine Spring Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 Rocks on Devils Hall Trail in Pine Spring Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 Dead juniper on Devils Hall Trail in Pine Spring Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 Hiker s staircase in Pine Spring Canyon, on Devils Hall Trail. Guadalupe Mountains National Park, Texas, December 28, 2007
 Devil s Hall in Pine Spring Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 Rocks in Devil s Hall in Pine Spring Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 Big rocks near Devil s Hall in Pine Spring Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 Upper section of Hiker s Staircase near Devil s Hall in Pine Spring Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 Texas madrone in McKittrick Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 Guadalupe spring from El Capitan Trail. Guadalupe Mountains National Park, Texas, December 27, 2007
 Bark of alligator juniper in McKittrick Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 El Capitan Mountain Trail near Guadalupe Spring in Guadalupe Mountains National Park. Texas, December 27, 2007
 El Capitan Mountain from a trail near Guadalupe Spring in Guadalupe Mountains National Park. Texas, December 27, 2007
 Rocks and El Capitan Mountain from a trail near Guadalupe Spring in Guadalupe Mountains National Park. Texas, December 27, 2007
 Split rock and El Capitan Mountain from a trail near Guadalupe Spring in Guadalupe Mountains National Park. Texas, December 27, 2007
 Agave on McKittrick Canyon Trail. Guadalupe Mountains National Park, Texas, December 28, 2007
 Slopes of Frijole Mountain from McKittrick Canyon Trail. Guadalupe Mountains National Park, Texas, December 28, 2007
 Grotto in McKittrick Canyon, with icicles. Guadalupe Mountains National Park, Texas, December 28, 2007
 Hunter Line Cabin in McKittrick Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 Echinocereus cacti growing on ruins of Hunter Line shack in McKittrick Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 El Capitan Mountain and Trail in Guadalupe Mountains National Park. Texas, December 27, 2007
 El Capitan Mountain from a trail in Guadalupe Mountains National Park. Texas, December 27, 2007
 El Capitan Trail and Mountain in Guadalupe Mountains National Park. Texas, December 27, 2007
 Agaves and El Capitan Mountain from a trail in Guadalupe Mountains National Park. Texas, December 27, 2007
 Cactus on rocks of El Capitan Trail. Guadalupe Mountains National Park, Texas, December 27, 2007
 View from beginning of El Capitan Trail in Guadalupe Mountains National Park. Texas, December 27, 2007
 Dead tree from El Capitan Trail. Guadalupe Mountains National Park, Texas, December 27, 2007
 Prickly pears near El Capitan Trail. Guadalupe Mountains National Park, Texas, December 27, 2007
 Hedgehog cactus near El Capitan Trail. Guadalupe Mountains National Park, Texas, December 27, 2007
 Agave, cacti and El Capitan Mountain from a trail in Guadalupe Mountains National Park. Texas, December 27, 2007
 Cushion cactus and El Capitan Mountain from a trail in Guadalupe Mountains National Park. Texas, December 27, 2007
 Prickly pears and yucca near El Capitan Trail. Guadalupe Mountains National Park, Texas, December 27, 2007
 Alligator juniper (Juniperus deppeana) near El Capitan Trail. Guadalupe Mountains National Park, Texas, December 27, 2007
 Magenta tinged echinocereus hedgehog actus on El Capitan Trail. Guadalupe Mountains National Park, Texas, December 27, 2007
 Frozen McKittrick Creek. Guadalupe Mountains National Park, Texas, December 28, 2007
 El Capitan Mountain from a trail at the foot of the mountain. Guadalupe Mountains National Park, Texas, December 27, 2007
 El Capitan Mountain (zoomed), view to the west in Guadalupe Mountains National Park. Texas, December 27, 2007
 El Capitan Mountain after sunset, view from lower Roadside Park. Guadalupe Mountains National Park, Texas, December 28, 2007
 El Capitan Mountain, view from lower Roadside Park at morning. Guadalupe Mountains National Park, Texas, December 28, 2007
 El Capitan Mountain, view from upper Roadside Park at morning. Guadalupe Mountains National Park, Texas, December 28, 2007
 El Capitan Mountain at sunset, view from lower Roadside Park. Guadalupe Mountains National Park, Texas, December 28, 2007
 El Capitan Mountain with cholla cactus in foreground, view from upper Roadside Park. Guadalupe Mountains National Park, Texas, December 28, 2007
 El Capitan Mountain with prickly pears cactus in foreground, view from upper Roadside Park. Guadalupe Mountains National Park, Texas, December 28, 2007
 El Capitan Mountain from southern foot of the mountain. Guadalupe Mountains National Park, Texas, December 27, 2007
 El Capitan Mountain at sunset, view from lower Roadside Park south from the mountain. Guadalupe Mountains National Park, Texas, December 28, 2007
 Mushrooms Tephrocybe anthracophila(?) growing from pieces of burned pine bark on charred soil near a completely burned pine log remained from prescribed burn in spring (spore print is white) on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 5, 2021
 Santa Elena Canyon west from Smokey Creek Trail east from Mule Ear Spring. Big Bend National Park, Texas, November 25, 2007
 Pendent bracket mushrooms (Irpicodon pendulus) on a vertically cut surface of a pine fallen across the trail approximately 2 years ago (pine bark partially burned in spring) in a sparse pine forest on upper ground on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, December 12, 2021
 Camping on a small ridge near Juniper Canyon Trail south from Upper Juniper Spring. Big Bend National Park, Texas, November 22, 2007
 Prickly pears cactus on a small ridge near Juniper Canyon Trail south from Upper Juniper Spring. Big Bend National Park, Texas, November 22, 2007
 Group of mushrooms Tephrocybe anthracophila (Lyophyllum anthracophilum)(?) growing from pieces of burned pine bark on charred soil near a completely burned pine log remained from prescribed burn in spring on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 5, 2021
 Echinocactus horizonthalonius (devil s head cactus, or horse crippler) with daggerlike spines on a small ridge near Juniper Canyon Trail south from Upper Juniper Spring. Big Bend National Park, Texas, November 22, 2007
 Greyling mushrooms Tephrocybe anthracophila (Lyophyllum anthracophilum) on charred soil around completely burned pine log remained from prescribed burn in spring (spore print is white and unclear) on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, December 5, 2021
 Tiny green liverwort on smooth tree bark in Huntsville State Park. Texas, December 18, 2020
 White corticioid fungus at the base of a tree with smooth bark in wet area near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, May 7, 2022
 Close-up of tiny green liverwort on smooth tree bark in Huntsville State Park. Texas, December 18, 2020
 Slopes of Chisos Mountains from Boot Spring Trail. Big Bend National Park, November 26, 2009
 Slopes of Chisos Mountains east from Boot Spring Trail. Big Bend National Park, November 27, 2009
 Lower part of Juniper Canyon Trail. Big Bend National Park, Texas, November 23, 2007
 Lower (flat) part of Juniper Canyon Trail. Big Bend National Park, Texas, November 23, 2007
 Boot Rock, view from Juniper Canyon Trail. Big Bend National Park, Texas, November 23, 2007
 Black and grey corticioid (crust) fungus Septobasidium fumigatum(?) on smooth bark of a living elm tree in area of Winters Bayou in Sam Houston National Forest, east from Waverly. Texas, December 5, 2020
 Northeast Rim, view from lower part of Juniper Canyon Trail. Big Bend National Park, Texas, November 23, 2007
 Fruits of Texas madrone (Arbutus xalapensis) on Blue Creek Trail. Big Bend National Park, November 29, 2009
 Crown Mountain, view from lower part of Juniper Canyon Trail. Big Bend National Park, Texas, November 23, 2007
 White resupinate polypore mushroom on bark of a fallen twig of a pine on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Smokey Creek Trail east from Mule Ear Spring. Big Bend National Park, Texas, November 25, 2007
 White resupinate polypore mushroom on bark of a fallen pine branch on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, July 26, 2022
 White resupinate polypore mushroom on bark of a fallen pine branch on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, August 22, 2020
 Texture of white resupinate polypore mushroom on bark of a fallen twig of a pine on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Details of white resupinate polypore mushroom on bark of a fallen twig of a pine on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 White resupinate polypore mushroom on thin bark of a fallen pine branch on Richards Loop Trail in Sam Houston National Forest, Texas, November 19, 2020
 Margin of white resupinate polypore mushroom on bark of a fallen twig of a pine on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Close-up of white resupinate polypore mushroom on bark of a fallen twig of a pine on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 White resupinate polypore mushroom on bark of a fallen pine on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, October 19, 2024
 White resupinate polypore mushroom covering bark of a fallen pine branch on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, August 22, 2020
 Cut section of white resupinate polypore mushroom on bark of a fallen pine branch on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, August 22, 2020
 Mature white resupinate polypore mushroom on bark of a fallen pine branch on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, July 26, 2022
 Close-up of white resupinate polypore mushroom on bark of a fallen pine branch on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, July 26, 2022
 Common white resupinate polypore mushroom on thin bark of a fallen pine branch on Richards Loop Trail in Sam Houston National Forest, Texas, November 19, 2020
 Close-up of white resupinate polypore mushroom on bark of a fallen pine branch on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, September 18, 2021
 Bee Mountain, view to the west from Smokey Creek Trail near Mule Ear Spring. Big Bend National Park, Texas, November 25, 2007
 Pitaya(?) cactus on Smokey Creek Trail east from Mule Ear Spring. Big Bend National Park, Texas, November 25, 2007
 Elephant Tusk Rock, view from Fresno Spring near Dodson Trail. Big Bend National Park, Texas, November 24, 2007
 Pyxine lichen on smooth tree bark on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, March 2, 2019
 Various lichens on smooth tree bark on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, November 26, 2020
 Smooth white patch of corticioid fungus Dendrothele candida on bark of a big live oak (Quercus virginiana) in a forest behind the park entrance at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, August 9, 2020
 White resupinate polypore mushroom with embedded dry fern leaves on bark of a fallen pine branch on Richards Loop Trail in Sam Houston National Forest, Texas, November 19, 2020
 White resupinate polypore mushroom with embedded oak leaves on thin bark of a fallen pine branch on Richards Loop Trail in Sam Houston National Forest, Texas, November 19, 2020
 White resupinate polypore mushroom growing through cracks in bark of a fallen pine branch on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, July 26, 2022
 Detached small piece of white resupinate polypore mushroom on bark of a fallen pine branch on Richards Loop Trail in Sam Houston National Forest, Texas, November 19, 2020
 Fresh growth of white resupinate polypore mushroom on bark of a fallen pine branch on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, July 26, 2022
 Goat Mountain, view to the north from Smokey Creek Trail near Mule Ear Spring. Big Bend National Park, Texas, November 25, 2007
 Close-up of white hyphae of a fungus covering fallen pine bark on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 9, 2023
 White resupinate polypore mushroom on bark of a fallen pine limb on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, August 30, 2020
 Flat white resupinate polypore mushroom on bark of a fallen pine on Little Lake Creek Loop Trail east from Trailhead No. 4 in Sam Houston National Forest, near Montgomery. Texas, January 2, 2021
 White hyphae of a fungus covering fallen pine bark and sweetgum balls on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 9, 2023
 Close-up of white resupinate polypore mushroom on bark of a fallen pine limb on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, August 30, 2020
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