Ruoss, E/ Ahti, T 1985: Die Rentierflechten (Cladonia subg. Cladina) im Herbarium Wallroth, Strassburg. - Nova Hedwigia41: 147-158. [RLL List # 126-91 / Rec.# 16018] Keywords: NOMENCLATURE/ CLADONIA/ CLADINA/ WALLROTH/ LECTOTYPES
Abstract: 2 figures. [Lectotypification of Cladonia arbuscula (Wallr.) Flot. and C. squarrosa (Wallr.) Flot. The lectotype of C. arbuscula contains psoromic acid and this differs from the commonly understood C. arbuscula with fumarprotocetraric acid. "If the chemotypes are recognized as different species, C. squarrosa seems to be the oldest available name at the species level for C. arbuscula s. auct. though C. squarrosa has usually been thought to be a synonym of C. rangiferina (L.) Web. ex Wigg."]