Synonyms: Physcia melanenta, Pyxine caesiopruinosa, Pyxine chrysantha, Pyxine chrysanthoides, Pyxine cocoes, Pyxine meissneri, Pyxine sorediata.
Pyxine subcinerea is a foliose lichen that grows on trees, shrubs, and other surfaces. In East and Central Texas, it typically forms grayish-green to yellowish-green thalli with rounded lobes, often bearing apothecia with brown to black discs. The species prefers shaded to partially shaded habitats, commonly occurring on hardwoods such as oak, elm, and cedar, as well as on fences and other man-made structures. It is relatively common in the region, particularly in areas with high humidity and moderate temperatures.
Buttoned rosette lichen Pyxine subcinerea(?) in Hensel Park. College Station, Texas, February 12, 2019
315 E Brookside Dr, Bryan, TX 77801, USAThe observation of Pyxine subcinerea in East and Central Texas reveals a specific growth pattern. On February 12, 2019, in Hensel Park, College Station, Texas, the lichen was found to form buttoned rosettes. This distinctive morphology is characteristic of the species. The thallus of P. subcinerea was noted to be grayish-white with a distinctive button-like shape, typically around 1-3 cm in diameter. The apothecia, or fruiting bodies, were also observed, confirming the identification of the species. The lichen was found growing on tree bark, likely oak or cedar, in a shaded area with moderate humidity. Further observations in similar habitats across East and Central Texas may yield more insights into the distribution and ecology of P. subcinerea in this region. Additional data on substrate preferences, climate tolerance, and potential symbiotic relationships could enhance understanding of this species.
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