Synonyms: Biatora lurida, Dermatocarpon aquaticum, Dermatocarpon aquatile, Dermatocarpon decipiens, Dermatocarpon fluviatile, Dermatocarpon miniatum, Dermatocarpon weberi, Endocarpon aquaticum, Endocarpon decipiens, Endocarpon fluviatile, Endocarpon miniatum, Endocarpon weberii, Entosthelia fluviatilis, Lepidoma luridum, Lichen amphibius, Lichen aquaticus, Lichen fluviatilis, Lichen luridus, Lichen weberi, Lobaria aquatica, Parmelia aquatica, Parmelia fluviatilis, Patellaria lurida, Placodium luridum, Platisma aquaticum, Schaereria lurida, Verrucaria weberi.
Common name: brook stippleback lichen.
Dermatocarpon luridum is a crustose lichen that grows on rocks and stones, characterized by a brown to grayish-brown thallus with a rough, wart-like surface. In East and Central Texas, it is commonly found on limestone and sandstone outcrops, particularly in areas with high humidity and shaded conditions. The species is often associated with other crustose lichens and mosses, and can form dense, patchy colonies on vertical rock faces. It is a relatively common species in the region, particularly in the Edwards Plateau and Post Oak Savannah ecoregions.
Leather lichen Dermatocarpon luridum (brownish foliose) on black granular lichen Pyrenopsis in seepage area on horizontal granite surface in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
Unnamed Road, Llano, TX 78643, USA
Brownish leather lichen Dermatocarpon luridum in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018Unnamed Road, Llano, TX 78643, USA
Leather lichen Dermatocarpon luridum with water-crust lichen Pyrenopsis in water seepage area on granite in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018Unnamed Road, Llano, TX 78643, USA
Close up of leather lichen Dermatocarpon luridum in water seepage area on granite in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018Unnamed Road, Llano, TX 78643, USA
Leather lichen Dermatocarpon luridum on dark brown water lichen Pyrenopsis in water seepage area on granite in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018Unnamed Road, Llano, TX 78643, USA
Leather lichen Dermatocarpon luridum and yellow stonecrop (Sedum nuttallianum) in a wet spot in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018Unnamed Road, Llano, TX 78643, USAObservations of Dermatocarpon luridum in East and Central Texas reveal its presence in seepage areas on granite surfaces, particularly in Enchanted Rock State Natural Area. The lichen is often found growing alongside other species, such as Pyrenopsis, a black granular lichen, and Sedum nuttallianum, a yellow stonecrop. In these areas, Dermatocarpon luridum exhibits a brownish foliose appearance, with a leathery texture. It thrives in wet conditions, often forming close relationships with water-crust lichens like Pyrenopsis. The species is able to colonize horizontal granite surfaces, where it can be found in dense clusters or individual thalli. Overall, Dermatocarpon luridum appears to be well-suited to the moist, rocky environments of Enchanted Rock State Natural Area, where it coexists with a variety of other plant and lichen species. Its growth habits and associations suggest a high degree of adaptability to local conditions.
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