Mossflora Und-Vegetation in Regenwaeldern No-Perus: Ergebnisse Der Bryotrop-Expedition Nach Peru 1982
Plant Geography
Süßwasserflora von Mitteleuropa, Bd. 14: Chlorophyta VI: Oedogoniophyceae: Oedogoniales
Travels in China: A Plantsman's Paradise
Flora Novo-Galiciana: A Descriptive Account of the Vascular Plants of Western Mexico : Limnocharitaceae to Typhaceae
Nonclimbing Species of the Genus Psychotria
Handbook of Rocky Mountain Plants
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