Kärnefelt, I 1988: Morphology and biogeography of saxicolous Caloplaca in southern Africa. - Monographs in Systematic Botany from the Missouri Botanical Garden25: 439-452. [RLL List # 135 / Rec.# 9854] Keywords: SOUTH AFRICA/ SAXICOLUS/ CALOPLACA/ MORPHOLOGY
Abstract: 10 figures. [Author describes and illustrates morphological variation in nine saxicolous species locally common in southern Africa. "The species belong to several different morphological types, e.g., crustose thallus, cracked-aereolate thallus, aereolate thallus with marginal lobes, thallus formed of smaller or larger lobes, and subfruticose thallus."]