 Orange leaf of sassafras on Richards Loop Trail in Sam Houston National Forest. Texas, December 15, 2020
 Texture of a leaf of sassafras on Richards Loop Trail in Sam Houston National Forest. Texas, December 15, 2020
 Close-up of a leaf of sassafras on Richards Loop Trail in Sam Houston National Forest. Texas, December 15, 2020
 Venation of a sassafras leaf on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Fall foliage of sassafras on Richards Loop Trail in Sam Houston National Forest. Texas, December 15, 2020
 Red leaf of sassafras at Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, August 19, 2012
 Young leaves of sassafras on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Leaves of sassafras on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2023
 Young leaves of sassafras on Richards Loop Trail in Sam Houston National Forest. Texas, April 13, 2024
 Oak leaf anthracnose (leaf spot fungus, Dicarpella dryina, Tubakia dryina) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Black blotches on the leaf of persimmon (Diospyros virginiana) caused by Cercospora leaf spot fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 21, 2020
 Close-up of oak leaf anthracnose (leaf spot fungus, Dicarpella dryina, Tubakia dryina) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Back lit oak leaf anthracnose (leaf spot fungus, Dicarpella dryina, Tubakia dryina) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
 Woolly growth (gall) on a dry oak leaf on Richards Loop Trail in Sam Houston National Forest. Texas, November 5, 2020
 Narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
 Necrotic spots that develop into angular lesions on underside of a leaf of persimmon (Diospyros virginiana) caused by persimmon Cercospora leaf spot fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 21, 2020
 Flowers of narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, July 12, 2020
 Back lit leaf of sassafras on Lone Star Hiking Trail south from Stubblefield Campground in Sam Houston National Forest. Huntsville, Texas, April 2, 2019
 Sassafras leaf and beautyberry on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, November 4, 2018
 Young red lobed leaf of mustang grape (Vitis mustangensis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Large catalpa-like leaf with pronounced veins on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, November 20, 2020
 Hickory leaf with dense cover of Phylloxera galls on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, May 2, 2020
 Young lobed leaf of mustang grape (Vitis mustangensis) on Richards Loop Trail in Sam Houston National Forest. Texas, March 18, 2020
 Yellow leaf of passion flower (Passiflora lutea) on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, November 20, 2020
 Milky false truffle mushroom Zelleromyces cinnabarinus placed on an oak leaf with a gall on Richards Loop Trail in Sam Houston National Forest. Texas, December 28, 2021
 Texas leaf cutting ant (Atta texana) on a sand mound on Richards Loop Trail in Sam Houston National Forest. Texas, November 5, 2020
 Texas leaf cutting ants (Atta texana) excavating sand on Richards Loop Trail in Sam Houston National Forest. Texas, November 5, 2020
 Texas leaf cutting ants (Atta texana) carrying sand bits on Richards Loop Trail in Sam Houston National Forest. Texas, November 5, 2020
 Leaf of persimmon (Diospyros virginiana) prematurely turned yellow with black spots of fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 21, 2020
 Black blotches on the leaf of persimmon (Diospyros virginiana) caused by Cercospora leaf spot fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 18, 2022
 Orange-yellow rust fungus Puccinia poarum (Puccinia liatridis) on a leaf of gayfeather (Liatris) on Richards Loop Trail in Sam Houston National Forest. Texas, March 26, 2020
 Yellow leaves of hickory on Richards Loop Trail in Sam Houston National Forest. Texas, December 15, 2020
 Fall colors of sweetgum on Richards Loop Trail in Sam Houston National Forest. Texas, December 15, 2020
 Mushroom Amanita polypyramis on Richards Loop Trail in Sam Houston National Forest. Texas, December 3, 2020
 Yellow web-like corticioid fungus under a pine(?) log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Cross section of a mushroom Amanita polypyramis on Richards Loop Trail in Sam Houston National Forest. Texas, December 3, 2020
 Pine Spike mushroom (Chroogomphus vinicolor) on Richards Loop Trail in Sam Houston National Forest. Texas, December 15, 2020
 Details of yellow web-like corticioid fungus under a pine(?) log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Mature Hebeloma(?) mushrooms on North Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, December 27, 2020
 Poison pie mushrooms (Hebeloma crustuliniforme) in a pine forest on North Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, December 27, 2020
 Sassafras leaf on Morse Loop Trail in Borderland State Park. North Easton, Massachusetts, October 16, 2004
 White and orange corticioid (crust) fungus on a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Mature stinkhorn mushrooms (Phallus impudicus) near a rotting log on Richards Loop Trail in Sam Houston National Forest. Texas, December 3, 2020
 Light orange corticioid (crust) fungus on a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Some white resupinate polypore mushroom on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Leaf of mustang grape on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
 Skeletonized leaf in Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, May 26, 2012
 Caterpillar munching leaf of an oak on Richards Loop Trail in Sam Houston National Forest. Texas, September 8, 2021
 Soft bracket mushrooms (Leptoporus mollis) on a cut surface of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Gills of orange mock oyster mushrooms (Phyllotopsis nidulans) on Richards Loop Trail in Sam Houston National Forest. Texas, December 3, 2020
 Side view of mature stinkhorn mushrooms (Phallus impudicus) on Richards Loop Trail in Sam Houston National Forest. Texas, December 3, 2020
 Cross section of spectacular rustgill mushrooms (Gymnopilus junonius) on Richards Loop Trail in Sam Houston National Forest. Texas, December 15, 2020
 Side view of spectacular rustgill mushrooms (Gymnopilus junonius) on Richards Loop Trail in Sam Houston National Forest. Texas, December 15, 2020
 Cross section of Pine Spike mushroom (Chroogomphus vinicolor) on Richards Loop Trail in Sam Houston National Forest. Texas, December 15, 2020
 Resupinate polypore mushroom Skeletocutis odora(?) on a cut surface of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Close-up of white and orange corticioid (crust) fungus on a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Underside of poison pie mushrooms (Hebeloma crustuliniforme) on North Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, December 27, 2020
 Bonnet (Mycena) mushrooms on a wet fallen pine on North Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, December 27, 2020
 Bonnet (Mycena) mushrooms on a mossy pine log on North Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, December 27, 2020
 Bonnet (Mycena) mushrooms on a large pine log on North Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, December 27, 2020
 Young leaf of mustang grape on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
 Reddish leaf of mustang grape on Richards Loop Trail in Sam Houston National Forest. Texas, April 9, 2022
 Young leaf of mustang grape on Richards Loop Trail in Sam Houston National Forest. Texas, April 9, 2022
 Common rustgill mushrooms (Gymnopilus penetrans) on rotting pine wood on Richards Loop Trail in Sam Houston National Forest. Texas, December 15, 2020
 Underside of brown purplepore bracket mushrooms (Trichaptum fuscoviolaceum) on a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 3, 2020
 Young spectacular rustgill mushrooms (Gymnopilus junonius) on a buried oak(?) root on Richards Loop Trail in Sam Houston National Forest. Texas, December 15, 2020
 Close-up of bonnet (Mycena) mushrooms on a mossy pine log on North Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, December 27, 2020
 Young brown purplepore bracket mushrooms (Trichaptum fuscoviolaceum) on a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 3, 2020
 White corticioid (crust) fungus on a pine log turning orange in several spots on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Young orange mock oyster mushrooms (Phyllotopsis nidulans) on a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 3, 2020
 White resupinate polypore mushroom with small pores on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Close-up of resupinate polypore mushroom Skeletocutis odora(?) on a cut surface of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Texture of resupinate polypore mushroom Skeletocutis odora(?) on a cut surface of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Texture of resupinate polypore mushroom Fibroporia radiculosa under a rotting pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Underside of bonnet (Mycena) mushrooms on a large pine log on North Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, December 27, 2020
 Orange resupinate polypore mushroom Fibroporia radiculosa on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Side view of poison pie mushrooms (Hebeloma crustuliniforme) on North Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, December 27, 2020
 Speckled shield lichen (Punctelia) on a pine on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, February 9, 2019
 Speckled shield lichen (Punctelia) on a tree on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, February 9, 2019
 Green lynx spider on a leaf of greenbrier on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
 Back lit Phylloxera galls on a hickory leaf on Richards Loop Trail in Sam Houston National Forest. Texas, March 30, 2024
 Narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, August 15, 2021
 Narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, July 29, 2021
 Narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, August 7, 2021
 Leaf of an aquatic plant in ultraviolet light from Richards Loop Trail in Sam Houston National Forest. Texas, October 27, 2024
 Narrow-leaf gayfeather (Liatris mucronata(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, July 23, 2023
 Mature soft bracket polypore mushrooms Leptoporus mollis on a cut surface of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Young pinewood gingertail mushrooms (Xeromphalina campanella) on a side of a rotting pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Orange pores of soft resupinate mushroom Fibroporia radiculosa on a rotting pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Immature pinewood gingertail mushrooms (Xeromphalina campanella) on rotting pine wood on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Close-up of orange resupinate polypore mushroom Fibroporia radiculosa on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Warped pink crust (corticioid) fungus Serpula himantioides(?) on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Close-up of young brown purplepore bracket mushrooms (Trichaptum fuscoviolaceum) on a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 3, 2020
 Gills of woolly oyster mushrooms (Hohenbuehelia mastrucata) on a fallen oak on North Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, December 27, 2020
 Woolly oyster mushrooms (Hohenbuehelia mastrucata) on underside of a fallen oak on North Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, December 27, 2020
 Overlapping crust mushrooms Stereum subtomentosum on a fallen oak near a creek on North Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, December 27, 2020
 Guttation of pink resupinate polypore mushroom under a fallen oak(?) branch on North Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, December 27, 2020
 Margin of white resupinate polypore mushroom with small pores on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
 Soft orange resupinate polypore mushroom Fibroporia radiculosa on a rotting pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 24, 2020
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