Notes on South-East Asian Diospyros L. (Ebenaceae, Ericales): commonly misidentified species in mainland South-East Asia

Diospyros L. is a large genus of flowering plants predominantly distributed in the tropics. It comprises over 700 species globally and around 300 are believed to occur in South-East Asia. Many species are economically important and exploited for the production of ebony wood and persimmons, yet taxonomic information on the genus is incomplete and inconsistent due to its morphological and nomenclatural complexity. Revisions of Diospyros in continental and insular South-East Asia were conducted independently by different authors, occasionally with different names used for the same species, or different species being given the same name in different countries. During our ongoing study of the genus Diospyros in Indochina (Cambodia, Laos, Thailand and Vietnam), we identified several such instances. Here, we clarify the most commonly misidentified species, including 1) D.  apiculata Hiern, D. strigosa Hemsl. and D. tamiriensis Lecomte; 2) D. bejaudii Lecomte and D. retrofracta Bakh.; 3) D. dictyoneura Hiern and D. hasseltii Zoll.; 4) D. borneensis Hiern and D. fecunda H.R.Fletcher. Lectotypifications are also made for D. brachiata King & Gamble var. lanceolata H.R.Fletcher, D. fecunda, D. similis Craib and D. strigosa

Ardisia whitmorei (Primulaceae-Myrsinoideae), a new species from north east of Peninsular Malaysia.

Julius & Utteridge, (Primulaceae-Myrsinoideae), a member of Ardisia subgenus Stylardisia on account of the style protruding from the closed petals prior to anthesis, is herein described and illustrated as a new species. This new species is easily distinguished by the combination of the inflorescences with a slender rachis branched to two orders, the corolla lobes are abaxially glabrous with usually up to only two gland-dots near the apex and the brochidrodromous secondary veins with double loops near the margin

Ardisia recurvisepala (Primulaceae-Myrsinoideae), a new species from Peninsular Malaysia

Ardisia recurvisepala Julius & Utteridge sp. nov. (Primulaceae-Myrsinoideae), a member of Ardisia subgenus Crispardisia on account of the vascularized leaf marginal glands, is herein described and illustrated as new species. The new species can be easily recognized by the elliptic-oblong calyx lobes recurving at the apex, and is also characterized by the narrowly elliptic to narrowly oblong-elliptic leaf laminas with an attenuate-decurrent base and acuminate-caudate apex. Ardisia recurvisepala is known so far from a single locality in Perak and its conservation status is assessed as Vulnerable (VU). An updated key to Ardisia subgenus Crispardisia in Peninsular Malaysia is provided

Whither Polyalthia (Annonaceae) in Peninsular Malaysia? Synopses of Huberantha, Maasia, Monoon and Polyalthia s.s.

An updated classification of Polyalthia in Peninsular Malaysia is presented. A synopsis (listing of species with synonymy and typification, and keys to species) is presented for the genera Huberantha, Maasia, Monoon and Polyalthia sensu stricto. One new species (Polyalthia pakdin I.M.Turner & Utteridge sp. nov.) is described and a conservation assessment presented for it. Monoon xanthopetalum Merr. represents a new record for Peninsular Malaysia. Six new lectotypes are designated

Whither <i>Polyalthia</i> (Annonaceae) in Peninsular Malaysia? Synopses of <i>Huberantha</i>, <i>Maasia</i>, <i>Monoon</i> and <i>Polyalthia</i> s.s.

An updated classification of Polyalthia in Peninsular Malaysia is presented. A synopsis (listing of species with synonymy and typification, and keys to species) is presented for the genera Huberantha, Maasia, Monoon and Polyalthia sensu stricto. One new species (Polyalthia pakdin I.M.Turner &amp; Utteridge sp. nov.) is described and a conservation assessment presented for it. Monoon xanthopetalum Merr. represents a new record for Peninsular Malaysia. Six new lectotypes are designated.</p

A new species of Myrsine (Primulaceae-Myrsinoideae) from New Guinea

Myrsine exquisitorum Utteridge & Lepschi (Primulaceae-Myrsinoideae) is described and illustrated as a new species endemic to the Western Highlands Province from Papua New Guinea. The new species is unique in the relatively large, almost orbicular leaves with entire margins, and the tetramerous flowers arranged in axillary fascicles without forming short shoots

Fig. 9 in Annonaceae in the Western Pacific: geographic patterns and four new species

Fig. 9. Regional distribution of the genus Drepananthus (Annonaceae) in the Pacific. Base map sourced from CartoGIS, College of Asia and the Pacific, The Australian National University, Australia.Published as part of Turner, Ian M. & Utteridge, Timothy M.A., 2017, Annonaceae in the Western Pacific: geographic patterns and four new species, pp. 1-44 in European Journal of Taxonomy 339 on page 16, DOI: 10.5852/ejt.2017.339, http://zenodo.org/record/383250

Annonaceae in the Western Pacific: geographic patterns and four new species

The taxonomy and distribution of Pacific Annonaceae are reviewed in light of recent changes in generic delimitations. A new species of the genus Monoon from the Solomon Archipelago is described, Monoon salomonicum I.M.Turner & Utteridge sp. nov., together with an apparently related new species from New Guinea, Monoon pachypetalum I.M.Turner & Utteridge sp. nov. The confirmed presence of the genus in the Solomon Islands extends the generic range eastward beyond New Guinea. Two new species of Huberantha are described, Huberantha asymmetrica I.M.Turner & Utteridge sp. nov. and Huberantha whistleri I.M.Turner & Utteridge sp. nov., from the Solomon Islands and Samoa respectively. New combinations are proposed: Drepananthus novoguineensis (Baker f.) I.M.Turner & Utteridge comb. nov., Meiogyne punctulata (Baill.) I.M.Turner & Utteridge comb. nov. and Monoon merrillii (Kaneh.) I.M.Turner & Utteridge comb. nov. One neotype and four lectotypes are designated. The geographic patterns exhibited by nine native Annonaceae genera, that range in the Pacific beyond New Guinea, are discussed

Maesa tetrandra (Primulaceae) in Palau: an introduced species mistaken for a single-island endemic

Maesa canfieldiae Fosberg & Sachet was formerly recognized as a single- island endemic in the Palau archipelago with a potentially rare distribution warranting its listing on the IUCN Red List as Vulnerable. Here we synonymize M. canfieldiae into Maesa tetrandra (Roxb.) A. DC., a more widespread species native to Indonesia and New Guinea, and discuss its likely method of recent introduction to the Palau Islands. Because this particular species favors disturbance and is now considered naturalized in the Pacific, we have included a general description of the plant to aid in its identification by nonexperts and to allow monitoring of its invasive potential. We recommend the listing of M. tetrandra as Least Concern on the IUCN Red List