Synonyms: Biatora russula, Lecidea ferruginea, Lecidea russula, Lepadolemma russulum, Lichen peltatus, Patellaria russula, Protoblastenia russula, Pyrrhospora russula.
Common name: southern crimson dot lichen.
Ramboldia russula is a crustose lichen species characterized by its orange to reddish-brown thallus and yellow to orange apothecia. In East and Central Texas, it typically grows on bark, particularly of deciduous trees such as oak and maple, in shaded to partially shaded areas. The species has been found in various counties, including Bastrop, Brazos, and Travis, often in woodland environments with high humidity and moderate temperatures. Its distribution in the region suggests a preference for moist, temperate climates with abundant tree cover.
Southern crimson dot lichen (Ramboldia russula) on a twig in Lick Creek Park. College Station, Texas, February 20, 2019
Iron Bridge Trail, College Station, TX 77845, USA
Southern crimson dot lichen (Ramboldia russula) on a fallen oak twig in Lick Creek Park. College Station, Texas, June 18, 2019Raccoon Run, College Station, TX 77845, USA
Southern crimson dot lichen (Ramboldia russula) in Lick Creek Park. College Station, Texas, June 18, 2019Raccoon Run, College Station, TX 77845, USAObservations of Ramboldia russula in East and Central Texas reveal its presence on various substrates. On February 20, 2019, it was spotted on a twig in Lick Creek Park, College Station, indicating its ability to thrive on small branches. Later, on June 18, 2019, it was found on a fallen oak twig in the same park, suggesting that it can also grow on decaying wood. Another observation on the same day in Lick Creek Park showed the lichen's presence, further confirming its existence in the region. These observations highlight the species' adaptability to different environments and substrates in East and Central Texas. The lichen's persistence in the area across different seasons, from February to June, also underscores its hardiness and ability to survive in varying conditions. Its distribution appears to be localized within Lick Creek Park.
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