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Type: Article
Published: 2012-10-17
Page range: 33–56
Abstract views: 99
PDF downloaded: 89

Characterization of Hubera (Annonaceae), a new genus segregated from Polyalthia and allied to Miliusa

Naturalis Biodiversity Center (section NHN), Leiden University, Einsteinweg 2, 2333 CC Leiden, the Netherlands
Department of Botany-Microbiology, Ohio Wesleyan University, Delaware, Ohio 43015 USA
Naturalis Biodiversity Center (section NHN), Leiden University, Einsteinweg 2, 2333 CC Leiden, the Netherlands
Wageningen University, Biosystematics Group, Droevendaalsesteeg 1, 6708 PB Wageningen, the Netherlands
Malmeoideae molecular systematics Old World floristics Paleotropics palynology Magnoliids

Abstract

On the basis of molecular phylogenetics, pollen morphology and macromorphology, a new genus of the tribe Miliuseae, Hubera, segregrated from Polyalthia and allied to Miliusa, is established and described. It is characterized by the combination of reticulate tertiary venation of the leaves, axillary inflorescences, a single ovule per ovary and therefore single-seeded monocarps, seeds with a flat to slightly raised raphe, spiniform(-flattened peg) ruminations of the endosperm, and pollen with a finely and densely granular infratectum. Twenty-seven species are accordingly transferred to this new genus.