The genus Miliusa (Annonaceae) in the Austro-Malesian area

Abstract

sUMMArYA taxonomic revision of the Austro-Malesian species of Miliusa Lesch. ex A.DC. (Annonaceae) is presented. Ten species can be recognised in the area, including one new species, Miliusa novoguineensis, described here. Most species are restricted to certain islands or geographic areas. Miliusa horsfieldii (Benn.) Pierre is the main exception as it is distributed from Hainan up to Queensland, Australia. six of the ten species (except M. amplexicaulis ridl., M. longipes King, M. macropoda Miq. and M. parviflora ridl.) have a deciduous habit, and are largely restricted to areas with a monsoon climate. A key, based primarily on generative characters, and descriptions to the species are included.

Phylogeny of Miliusa (Magnoliales: Annonaceae: Malmeoideae: Miliuseae), with descriptions of two new species from Malesia

“…Most species (expected to be part) of clades A and D prefer drier habitats (e.g. deciduous/dipterocarp forests), resulting in a various degree of deciduous lifecycle exhibited by a number of species (Mols & Keßler 2003b). In contrast, the majority of the species (expected to be part) of clades B and C prefer more humid habitats, e.g.…”

“…Probably these differentiations are associated with the different pollination strategies. So far there has been no detailed study on pollination biology of Miliusa; however, according to Mols & Keßler (2003b), fruit flies were observed to visit the flowers of M. horsfieldii. A detailed pollination biological study is required to determine if this kind of insect is potential pollinators for this species.…”

“…The term 'velvety' is equivalent to densely hairy/with dense hairs, whereas 'puberulous' is equivalent to sparsely hairy/ with sparse hairs. Morphological data of the 11 known species of Miliusa in the Austro-Malesian area were from Mols & Keßler (2003b), Chaowasku & Keßler (2006), and personal observations (= all specimens cited in Mols & Keßler 2003b). Morphological data of other species included in the molecular phylogenetic analysis were from Chaowasku (2013), Chaowasku & Keßler (in press), and personal observations (= voucher specimens for molecular phylogenetic analysis plus a few more specimens, see Appendix).…”

The <I>Winteraceae</I> of the Old World. VII. <I>Zygogynum</I> in the Solomon Islands (incl. Bougainville)

“…Canright (1952) circumvents this as follows: "Elongation of the apices (called 'connective appendages' by most taxonomists)"; Endress & Hufford (1989) use the phrase "anther connective protrusion"; Endress & Doyle (2009) discuss "an extended connective apex" and Friis et al (1986) a "connective … expanded at the apex". In Annonaceae literature are found "connective apex" (Maas & Westra 2003) and "connective prolongation" (Mols & Keßler 2003). In Compositae literature the terminology "apical appendage" is used.…”

Miliusa lanceolata (Annonaceae), a new species from Papua New Guinea

“…Although a revision of species in the Austro-Malesian including this area has recently been completed (Mols & Keßler, 2003), there are still several species to be described. The new species herein described, M. lanceolata, is mainly characterized by the presence of dense hairs on young twigs and lower surface of the leaf midrib and the supra-axillary flowers with rather long pedicels, the latter reminds of M. macropoda Miq.…”