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By: Hallier, Hans,Type: ArticleIn: Bulletin de l'Herbier BoissierVolume: ser.2 v.3 1902-1903Series: 2Issue: No. 4Date: 1893-1908.Page Range: 306-317Publication Info: Genève, Impr. Romet, 1893-1908Subjects: Angiosperms -- Classification Plants -- classification