Genus Huberantha (Annonaceae) revisited: erection of Polyalthiopsis, a new genus for H. floribunda, with a new combination H. luensisстатья
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Дата последнего поиска статьи во внешних источниках: 10 августа 2018 г.
Аннотация:The identity of an enigmatic species Huberantha floribunda (Annonaceae) is reassessed
using molecular phylogenetic analyses of up to seven combined plastid markers
(matK, ndhF, rbcL, ycf1 exons; trnL intron; trnL-trnF, psbA-trnH intergenic spacers),
constituting up to ca. 7 kbp. Huberantha floribunda does not fall into Huberantha
clade, but is retrieved as the sister group of Miliusa with no support, necessitating the
recognition of a new genus, to accommodate this species. Polyalthiopsis Chaowasku
gen. nov. along with Huberantha and Miliusa form an unsupported to weakly supported
clade within the tribe Miliuseae. Morphology of Polyalthiopsis is somewhat intermediate
between morphologies of Huberantha and Miliusa. It primarily differs from Huberantha
by often possessing unequal petal whorls and a seed raphe that is broadly grooved
and partially slightly raised in the middle. Polyalthiopsis differs from Miliusa mainly by
having a dilated truncate connective apex of the stamens and outer petals that are much
larger than the sepals. In addition, Huberantha luensis (Pierre) Chaowasku, a new combination
for Polyalthia luensis is made based on an integrative approach of morphological
examination coupled with molecular phylogenetic inferences.