Ardisia pyrotechnica (Primulaceae-Myrsinoideae), a new species from Borneo

Ardisia pyrotechnica Julius, Tagane & Utteridge (Primulaceae-Myrsinoideae) is described and illustrated as a new species from Sarawak, Borneo. The new species is assigned into Ardisia subgenus Pyrgus based on its inflorescence terminal on specialized lateral branches below the indeterminate primary axis, which is arising directly from the stem. Remarkable for the massive inflorescences subtended by two large elliptic foliose bracts and the large pinkish-white sepals; a preliminary conservation status, photographs and a line illustration are also provided.

Hedyotis dinganensis, a new species of Rubiaceae from Hainan, China

Hedyotis dinganensis, a new species of the family Acanthaceae is described and illustrated from Hainan, China. It is most similar to H. yazhouensis and H. paridifolia, but can be easily distinguished from the latter by the inflorescence terminal or upper axillary congested-cymose, capitate, or fasciculate, the calyx 7–8 mm long, the corolla tube ca. 8 mm, the stipules triangular to broadly triangular ca.10 mm long, marginally entire to glandular-serrate, acuminate or with 8–10 narrowly triangular to linear lobes or bristles 1–7 mm long, the stigmas exserted ca. 1.2 mm. The new species is accessed as as ‘Critically Endangered’ (CR) according to IUCN categories and criteria.

A new species of Psychotria (Rubiaceae) from Andaman and Nicobar Islands, India

Psychotria vasudevae, a new species belongs to the family Rubiaceae is described from the Little Nicobar Tribal Reserve and Katchal Island of the Union Territory of Andaman and Nicobar Islands, India. This species is closely allied to Psychotria nicobarica, by having similar leaf shape (elliptic-oblanceolate), nature of inflorescence (terminal cyme), and 5-merous flowers but from which it can be distinguished by the more slender and glabrous stems, glabrous midrib with 12 or 13 pairs of secondary veins, acute stipules, longer calyx lobes, externally pubescent corolla lobes, papillose stigma and globose fruits. A detailed description, illustration, distribution map, and photographic plate are provided.