 Physcia lichen on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Streaked rosette lichen (Physcia atrostriata) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Streaked rosette lichen (Physcia atrostriata) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Bark rash lichen (Pyrenula cruenta) on tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Bark lichen Pyrenula on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Pyxine(?) lichen on tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Ruffle lichen (Parmotrema) on tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Pox lichen Pyrenula anomala on a tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Parmelinopsis minarum or may be Bulbothrix lichen on tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Bark rash lichen (Pyrenula cruenta) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Golden dust lichen Chrysothrix xanthina on tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Fissurina lichen on bark of a magnolia tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Brick-spored firedot lichen Brigantiaea leucoxantha on tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Brick-spored firedot lichen Brigantiaea leucoxantha with apothecia on tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Lobed cotton lichen (Crocynia pyxinoidess, Phyllopsora pyxinoides) on tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Brick-spored firedot lichen Brigantiaea leucoxantha on tree bark on floodplain in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Close up of brick-spored firedot lichen Brigantiaea leucoxantha on tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Streaked rosette lichen (Physcia atrostriata) on atree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Streaked rosette lichen (Physcia atrostriata) with soredia in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Streaked rosette lichen (Physcia atrostriata) with liverwort Leucolejeunea conchifolia(?) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Fissurina lichen on bark of a magnolia tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Fissurina lichen on bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Texture of Fissurina lichen on bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Bark rash lichen (Pyrenula cruenta) on a tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Dust lichen (Lepraria incana) on bark of a large pine tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 10, 2019
 Texture of bark rash lichen (Pyrenula cruenta) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Shade form of bark rash lichen (Pyrenula cruenta) on a tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Crimson warts of bark rash lichen (Pyrenula cruenta) on a tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Brick-spored firedot lichen (Brigantiaea)(?) on bark of a deciduous tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Golden dust lichen Chrysothrix xanthina with a folious lichen on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Some corticioid (crust) fungus on tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Pyxine(?) lichen on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Pyxine(?) lichen on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Lichen Parmelinopsis minarum on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Medallion lichen (Dirinaria) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Warty lichen Pyrenula on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Canoparmelia caroliniana(?) lichen on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Lichen Cryptothecia striata on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Ramalina dasypoga lichen on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Warty lichen Pyrenula on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Lichen Canoparmelia caroliniana(?) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Ruffle lichen (Parmotrema) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Some lichen with brown apothecia that looks like Brigantiaea on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Lichen Parmelinopsis minarum or may be Bulbothrix on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Surprise lichen (Bacidia schweinitzii) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Spreading lichen Cryptothecia striata on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Lace-scale lichen Phyllopsora parvifolia on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Buttoned rosette lichen (Pyxine) on a magnolia tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Parmotrema subisidiosum (Rimelia subisidiosa)(?) lichen on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 White fringe lichen (Heterodermia albicans) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Shield lichen (Canoparmelia caroliniana) on a deciduous tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Pixie-hair lichen (Coenogonium implexum) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Pox (rash) lichen Pyrenula anomala on a deciduous tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Lichen Phyllopsora confusa on a tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Fissurina lichen on a magnolia tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Surprise lichen (Bacidia schweinitzii) on a tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 White fringe lichen (Heterodermia albicans) on a tree, may be on magnolia, in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Volcano lichen (Myriotrema rugiferum) under some moss strands on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Lace-scale lichen Phyllopsora parvifolia on a magnolia(?) tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Brick-spored firedot lichen Brigantiaea leucoxantha on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Carolina shield lichen (Canoparmelia caroliniana) on a deciduous tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Pixie-hair lichen (Coenogonium implexum) on a tree in shade in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Ruffle lichen Canomaculina subtinctoria (Parmotrema subtinctorium)(?) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Pixie-hair lichen (Coenogonium implexum) with brown apothecia on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Green patch of lace-scale lichen Phyllopsora parvifolia on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Warty lichen (Pertusaria) on magnolia bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Lobed cotton lichen (Crocynia pyxinoidess, Phyllopsora pyxinoides) on a magnolia(?) tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Brick-spored firedot lichen Brigantiaea leucoxantha with Phyllopsora parvifolia on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Dust lichen (Lepraria incana) on pine bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 10, 2019
 Lobed cotton lichen (Crocynia pyxinoides, Phyllopsora pyxinoides) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Lobed cotton lichen (Crocynia pyxinoides, Phyllopsora pyxinoides) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Lobed cotton lichen (Crocynia pyxinoides, Phyllopsora pyxinoides) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Liverwort Leucolejeunea conchifolia(?) on a tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Lobed cotton lichen (Crocynia pyxinoides, Phyllopsora pyxinoides) on a tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Small patch of lobed cotton lichen (Crocynia pyxinoides, Phyllopsora pyxinoides) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Rosette lichen Physcia erumpens(?) on tree bark on Alligator Branch section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, February 17, 2019
 Lichen Cryptothecia striata on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Pyxine(?) lichen in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Parmotrema lichen in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Lichen Parmelinopsis minarum in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Medallion lichen (Dirinaria)(?) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Button lichen (Buellia) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Brigantiaea(?) lichen on a deciduous tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 White fringe lichen (Heterodermia albicans) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Surprise lichen (Bacidia schweinitzii) at the base of a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Surprise lichen (Bacidia schweinitzii) on a holly tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Rosette lichen Physcia(?) on tree bark on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, March 1, 2019
 Texture of Brigantiaea(?) lichen on a deciduous tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Close up of Brigantiaea(?) lichen on a deciduous tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Buttoned rosette lichen (Pyxine)(?) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Lepra lichen on a fallen oak branch in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Brick-spored firedot lichen Brigantiaea leucoxantha on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Pixie-hair lichen (Coenogonium implexum) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Common greenshield lichen (Flavoparmelia caperata)(?) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Wrinkled loop lichen (Hypotrachyna livida) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Blue jellyskin lichen (Leptogium cyanescens) on a magnolie or holly tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Texture of brick-spored firedot lichen Brigantiaea leucoxantha on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Lobed cotton lichen (Crocynia pyxinoides, Phyllopsora pyxinoides) and a green foliose lichen in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Brick-spored firedot lichen Brigantiaea leucoxantha in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
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