Kuntze,O 1891: Revisio generum plantarum vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum. - : . [Mattick Rec.# 28058] Abstract: lichens: Pars II, 478 and 875-877; review Zahlbr. in Justs Bot. Jahrb. 1891, 1:260.