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H.G.A. Engler, Pflanzenr., vol. 129 [Heft 53], (Geraniaceae): p. 374, fig. 48 (1912) [147]
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University of Toronto Library, Canada
H.G.A. Engler, Pflanzenr., vol. 129 [Heft 53], (Geraniaceae): p. 374, fig. 48 (1912)