R. V. D. Ham

Publications64
h-index15
Citations620
Highly Influential Citations34
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Characterization of Hubera (Annonaceae), a new genus segregated from Polyalthia and allied to Miliusa
TLDR
A new genus of the tribe Miliuseae, Hubera, segregrated from Polyalthia and allied to Miliusa, is established and described, characterized by the combination of reticulate tertiary venation of the leaves, axillary inflorescences, a single ovule per ovary and therefore single-seeded monocarps.
Huberantha, a replacement name for Hubera (Annonaceae: Malmeoideae: Miliuseae)
TLDR
A replacement generic name is proposed for the recently described genus Hubera Chaowasku segregated from Polyalthia Blume because the nameHubera has been recommended to be treated as a later homonym of Huberia DC.
Bottegoa Chiov. transferred to the Ptaeroxylaceae
TLDR
A multidisciplinary approach is used to determine the taxonomic position of the hitherto poorly known NE African monotypic genus Bottegoa, and it is found that on account of macromorphological, leaf, wood and seed anatomical features Botte goa is more satisfactorily placed in the Ptaeroxylaceae.
(Miquel) comb. nov. (Cheirolepidiaceae?): remarkable conifer foliage from the Maastrichtian type area (Late Cretaceous, NE Belgium, SE Netherlands)
Seagrass foliage from the Maastrichtian type area (Maastrichtian, Danian, NE Belgium, SE Netherlands)
Conifers from the Santonian of Limburg, The Netherlands
Pollen morphology and phylogeny of the tribe Tabernaemontaneae (Apocynaceae, subfamily Rauvolfioideae)
Pollen of Melodinus (Apocynaceae): Monads and tetrads
TLDR
On the basis of pollen morphology, it is hypothesised that tetrads evolved independently in Melodinus and Craspidospermum.
Notes on the genus Amorphophallus (Araceae) — 8
Serjania pollen and the origin of the tribe Paullinieae (Sapindaceae)
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