Dodge, CW 1956: Some lichens of tropical Africa. II. Usnea. - Ann. Missouri Bot. Gard.43: 381-396. [RLL List # 23 / Rec.# 4442] Keywords: AFRICA/ USNEA/ NEW TAXA/ KEY/ TROPICS
Abstract: [102 species. Key. New: Usnea cervicornis sp. nov., U. nutans sp. nov., U. dodomae sp. nov., U. pulvinata sp. nov., U. subcristata sp. nov., U. nana sp. nov., U. medio-africana sp. nov., U. brunnescens sp. nov., U. dalei sp. nov., U. spilotoides sp. nov., U. amaniensis sp. nov. See also Ann. Mo. Bot. Gard. 44: 1-76. 1957.]