Texture of bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on a hackberry tree in Lick Creek Park. College Station, Texas, February 3, 2019
Texture of sunken bloodspot lichen (Haematomma persoonii) on bark of hackberry tree in Lemontree Park. College Station, Texas, January 2, 2019
Fibrous texture of cedar tree bark in Boonville Cemetery. Bryan, Texas, November 14, 2012
Tree bark texture in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2010
Texture of bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on bark of hackberry tree in Lick Creek Park. College Station, Texas, January 1, 2019
Texture of tree bark in Lick Creek Park. College Station, Texas, December 14, 2012
Texture of tree bark in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 20, 2012
Texture of bark of dry oak tree on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 17, 2013
Texture of corticioid fungus Leucogyrophana mollusca on a small tree without bark on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, December 1, 2019
Texture of white fringe lichen (Heterodermia albicans) on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
Texture of script lichen (Graphis) on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
Texture of bark rash lichen (Pyrenula cruenta) on a holly tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, February 29, 2020
Texture of tree bark on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, November 13, 2020
Texture of black and grey corticioid (crust) fungus Septobasidium fumigatum(?) on bark of an elm tree in area of Winters Bayou in Sam Houston National Forest, east from Waverly. Texas, December 5, 2020
Texture of bicoloured bracket mushroom (Gelatoporia dichroa, Vitreoporus dichrous) on a dry red cedar tree without bark at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 29, 2020
Texture of white resupinate polypore mushroom "boring poria" (Oxyporus corticola)(?) on a fallen tree without bark near Dibuny, north-west from Saint Petersburg, Russia, May 5, 2021
Brain-like texture of orange jelly fungus Dacrymyces on bark of a fallen elm tree on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, December 26, 2021
Texture of tunnels of bark beetles on a dry standing tree in Lick Creek Park. College Station, Texas, January 25, 2023
Texture of yellow corticioid fungus from a fallen elm tree, on soil mixed with bark and sand, on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 9, 2023
Ancient oak tree trunk. Many oaks in the park are over 200 years old, some dating back to the park s initial landscaping in the 18th and 19th centuries. The gnarled, textured bark and massive girth signify its age and resilience. Northern part of Aleksandrovsky (Alexander) Park in Pushkin (former Tsarskoe Selo) near Saint Petersburg, Russia, October 10, 2025
Layered complexity of the mixed deciduous forest in Alexander Park. The image is a study in yellow, dominated by the luminous canopy of Norway maples and silver birches. The rough, dark bark of the oaks and maples provides a strong vertical rhythm that cuts through the delicate, hazy texture of the foliage. The white, paper-like bark of the birch trees adds a secondary visual accent typical of the Russian landscape. The composition includes a rich understory of turning shrubs--likely hazel or young rowan--which adds density and depth, grounding the soaring trunks in a thicket of earthy reds and browns. Aleksandrovsky (Alexander) Park in Pushkin (former Tsarskoe Selo) near Saint Petersburg, Russia, October 10, 2025
Rich textures of the "Golden Autumn" in the Upper Park s romantic landscape. A prominent feature is the large tree trunk (likely a Linden/Lime tree, Tilia) displaying dense epicormic growth--small green sprouts at its base--which creates a "skirt" of fresh green that stands out against the darker, rugged bark and the autumn colors surrounding it. Oranienbaum palace-and-park ensemble in Lomonosov (a suburb of St. Petersburg), Russia, October 13, 2025
Vibrant, neon-yellow to chartreuse color and the powdery, granular texture (described as "leprose," meaning it lacks a smooth outer "skin" or cortex) of gold dust lichen (Chrysothrix xanthina) on bark of a tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, January 6, 2026
This close-up photograph shows the highly textured bark of a hackberry tree (Celtis sp.). The surface is characterized by prominent, corky, warty ridges that project outward in irregular vertical patterns, a key diagnostic feature of the species. These raised, grayish-brown outgrowths display fine, layered striations that resemble topographic contour lines or sedimentary strata. Lick Creek Park. College Station, Texas, February 18, 2026
