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Article
Ulrich Meve, Auteur ; Ralf Omlor, AuteurOncostemma cuspidatum K. Schum., described from the West African island of S˜o Tomé, is recognized as being synonymous with Tylophora oblonga N.E. Br., a widespread and variable species of mainland African rainforests. The monotypic genus Oncost[...]
Article
Ulrich Meve, Auteur ; Ralph M. Mangelsdorff, AuteurA new species, Ceropegia yemenensis Meve & Mangelsdorff (Asclepiadoideae-Ceropegieae), from the province of Damar in northern Yemen, is described and illustrated. The tiny twiner with fleshy roots shares some characters with C. ahmarensis and C.[...]
Article
Sigrid Liede, Auteur ; Ulrich Meve, Auteur ; Angelika Täuber, AuteurEvidence from the chloroplast trnT-L spacer, trnL intron and trnL-F spacer shows the subtribe Glossonematinae of the tribe Asclepiadeae, hitherto composed of the Arabian and North African genera Glossonema, Odontanthera andSolenostemma, not to b[...]
