Krog, H/ Swinscow, TDV 1986: The lichen genera Lasallia and Umbilicaria in East Africa. - Nordic Journal of Botany6: 75-85. [RLL List # 127-100 / Rec.# 10493] Keywords: EAST AFRICA/ LASALLIA/ UMBILICARIA/ NEW TAXA/ KEYS
Abstract: 8 figures. [Recognition of 9 species of Umbilicaria and 3 of Lasallia; keys. New: Umbilicaria africana (Jatta) comb. nov., U. soralifera (Frey) comb. nov., and U. umbilicarioides (B. Stein) comb. nov.]
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