Cora timucua, the Timucua heart lichen, is a species of lichen collected from 1885 to 1985 in Florida. The Timucua heart lichen was named to honor the Timucua people.[1] The species is now potentially extinct but this is unknown.[2]
Cora timucua lichens are around 2.5 to 7 cm across and grow on the bark of shrubs (Lyonia ferruginea and Quercus virginiana) in inland scrub and oak-dominated hardwood forests of Florida. C. timucua is a foliose lichen composed of 1–3(–5) semicircular, lobes; each 1–3(–4) cm wide and 1–3 cm long. The lobes are often striped, with some blue-green areas, as well as grey-green, to brown, or yellow regions, bleeding a reddish brown pigment.[3]