@ARTICLE{TreeBASE2Ref20692, author = {Margaretha Marianne Le Roux and Ben-Erik Van Wyk}, title = {A Taxonomic Revision of Amphipilosae, a New Section of Crotalaria (Fabaceae).}, year = {2012}, keywords = {amphistylar hairs, C. giessii, C. kolbergii, new species, southern Africa, ridge callosities}, doi = {}, url = {http://}, pmid = {}, journal = {Systematic Botany}, volume = {}, number = {}, pages = {}, abstract = {Crotalaria sect. Amphipilosae is described as a new section to give formal recognition to a strongly supported clade that was revealed by a recent molecular systematic study. The five known species are restricted to the arid western parts of southern Africa (C. colorata, C. excisa, C. humilis, C. meyeriana, and C. pearsonii). Species of the section are morphologically distinct in having (1) hairs distributed all around the distal part of the style; (2) ridge callosities on the standard petal blade and claw; (3) a rounded keel; (4) a twisted keel beak; (5) a rounded style. A cladistic analysis of 21 morphological characters resulted in a well-resolved cladogram showing relationships within the section. The study revealed that two new species should be recognised, which are here described as C. giessii and C. kolbergii. A taxonomic revision of the section is presented, with descriptions, diagnostic characters, distribution maps, and illustrations of all seven species recognised.} }

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