Synonyms: Anaptychia obscura, Dimelaena obscura, Lobaria obscura, Parmelia chloantha, Parmelia obscura, Phaeophyscia chloantha, Physcia chloantha, Physcia ciliaris, Physcia ciliata, Physcia labrata, Physcia luganensis, Physcia obscura, Physcia orbicularis, Physcia pragensis, Squamaria obscura.
Common names: Powdery-margined Cryptic Shade Lichen, downside shade.
Physciella chloantha is a crustose lichen species characterized by its pale yellow to greenish-gray thallus, often forming small patches or rosettes on bark, wood, and rock substrates. In East and Central Texas, it is commonly found on deciduous tree bark, particularly oak and elm, as well as on fence posts and other wooden structures. The lichen's apothecia are lecanorine, with a pale yellow to brown disk and a thin, persistent margin. Physciella chloantha is widely distributed in the region, thriving in shaded to partially shaded environments with moderate to high humidity.
Cryptic rosette lichen (Physciella chloantha)(?) on lower branches of old acacia (huisache) between Signature Park 11 apartments and Oil Well near Park Hudson Trail. Bryan, Texas, January 27, 2019
Park Hudson Trail, Bryan, TX 77802, USA
Cryptic rosette lichen (Physciella chloantha)(?) on bark of lower branches of old acacia (huisache) between Signature Park 11 apartments and Oil Well near Park Hudson Trail. Bryan, Texas, January 27, 2019Park Hudson Trail, Bryan, TX 77802, USAObservations of Physciella chloantha in East and Central Texas reveal its presence on old acacia trees, specifically huisache. The lichen was found growing on the lower branches of these trees, particularly on the bark. In Bryan, Texas, it was spotted between Signature Park 11 apartments and Oil Well near Park Hudson Trail on January 27, 2019. The species appears to thrive in this environment, forming cryptic rosettes that blend in with its surroundings. The lichen's growth pattern suggests a preference for shaded or partially shaded areas, as it is often found on the lower branches of trees. Further observations are needed to confirm the identity of the species and fully understand its habitat preferences in East and Central Texas. The discovery of Physciella chloantha in this region highlights the diversity of lichen species in the area.
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