Four new species of Culcasia and Stylochaeton (Araceae) from tropical Africa

Publication Type:Journal Article
Year of Publication:2011
Authors:Bogner, J.
Journal:Willdenowia. Mitteilungen aus dem Botanischen Garten und Museum Berlin-Dahlem. Berlin-Dahlem
Start Page:57
Keywords:aroids, Cameroon, DR Congo, Gabon, Sierra Leone, taxonomy

Two species of Culcasia, C. brevipetiolata from Gabon and C. linearifolia from Gabon and Cameroon, and two new species of Stylochaeton, S. pilosus from Sierra Leone and S. malaissei from DR Congo, are described as new to science and illustrated. C. brevipetiolata is characterised by short petioles and leaf blades with a rounded base, C. linearifolia by linear leaf blades, S. pilosus by ± rounded, abaxially hairy leaf blades and hairy petioles, and S. malaissei by leaf blades with a cuneate base.

Full Text

In the course of a revision of the aroid genus Stylochaeton Lepr., I found two undescribed species of that genus from Sierra Leone and from Shaba (formerly Katanga), DR Congo, during my visit to the herbarium of the Nationale Plantentuin in Meise (BR), Belgium, among the material preserved, and two undescribed species of Culcasia P. Beauv. in a loan of African aroids from the Herbarium Vadense in Wageningen (WAG), Netherlands. The relevant literature consulted includes Engler (1905), (1920), Andrews (1956), Hepper (1968), Knecht (1983), Mayo (1985), Ntépé-Nyamè (1988), Malaisse & Bamps (1994), Ittenbach & Thulin (1995), Mayo & al. (1997), Riedl (1997), Lecron & Malaisse (1999) and Govaerts & Frodin (2002). These new discoveries are described here.

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