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H.G.A. Engler, Pflanzenr., vol. 112 [Heft 26], (Droseraceae): p. 32, fig. 13 (1906) [69]
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University of Toronto Library, Canada
H.G.A. Engler, Pflanzenr., vol. 112 [Heft 26], (Droseraceae): p. 32, fig. 13 (1906)