Two groups of species are dealt with: first, Cyrtandra schizostyla together with three new species, all notable for the extraordinary elaboration of their anthers; second, C. velutina and C. diplotricha together with four new species, notable for their remarkably slender, soft-walled fruits. All species are fully described and identification keys provided.

A new species, Hedyotis rajasekaranii Karupp. & Ravichandran (Rubiaceae), is described from the Megamalai Hills of the Western Ghats in Tamil Nadu, southern India.

Three new species of Aeschynanthus (Gesneriaceae) from Sulawesi (Celebes), A. batesii, A. burttii and A. lobaticalyx, are described and illustrated. The phylogenetic position of A. batesii and A. lobaticalyx is briefly discussed; A. burttii has not yet been sequenced.

The flora of Laos remains one of the least known within the Indo-Burma biodiversity hotspot. A floristic inventory was carried out in Phou Hin Poun National Biodiversity Conservation Area, an under-explored area of the Khammouane Limestone. This study provides a list of 27 taxa that are additions to the most recent country checklists. The Ebenaceae, Euphorbiaceae and Myrtaceae are the families with the highest species number. In this list, four species are endemic to Indochina (Cambodia, Laos and Vietnam): Cynometra dongnaiensis Pierre, Jasminum vidalii P.S.Green, Memecylon chevalieri Guillaumin and Pothos gigantipes Buchet ex P.C.Boyce. These results illustrate the paucity of our knowledge of the region surveyed and of the flora of Laos in general.

A new species of Gesneriaceae, Ornithoboea emarginata D.J.Middleton & N.S.Ly, is described from Vietnam. A proposed IUCN conservation assessment is provided.

Six new species of the Neotropical genus Tetrapterys (Malpighiaceae) are described and illustrated: T. amazonica C.E.Anderson (Brazil, Colombia and Peru), T. andersonii C.E.Anderson (Mexico), T. callejasii W.R.Anderson (Colombia), T. molinae W.R.Anderson (Honduras), T. rzedowskii W.R.Anderson (Mexico) and T. steyermarkii W.R.Anderson (Colombia and Venezuela). All have 4(–6)-flowered umbels as the ultimate inflorescence units, glabrous yellow petals, and samaras with a small dorsal wing in addition to the four large lateral wings.

A new species, Rhinacanthus flavovirens Amarasinghe & Wijesundara (Acanthaceae), from Sri Lanka, is described and illustrated. It is compared with the closely allied Rhinacanthus nasutus and R. polonnaruwensis. A key to Rhinacanthus species in Sri Lanka is also presented.

Fourteen miscellaneous Bornean species of Cyrtandra are treated. Descriptions and discussion are provided for C. integerrima and C. neiothiantha, originally published with diagnoses only, and C. warburgiana is redescribed. Cyrtandra arachnoidea, C. asikii, C. banyingii, C. keithii, C. lineariloba, C. mendumae, C. palimasanica, C. parvifructa, C. sublanea, C. tubibractea and C. undata are newly described.

Within Rhytidocaulon macrolobum Lavranos, which is a widespread stapeliad in Saudi Arabia and in the Yemen, the subspecies minimum Meve & Collenette is described as new. This taxon is restricted to SW Saudia Arabia; it can be easily recognized by its miniature flowers, which are conspicuously smaller than the diameter of the stems, and by its bright-coloured corona.

A new variety of Agalmyla tuberculala Hook. f. is described; it extends the range of the species from Mt Kinabalu, Sabah, to Mt Murud, N Sarawak. Five new species and four new varieties of Cyrtandra are described from Mt Kinabalu; there are also two new species of Cyrtandra from Sarawak.

Coprinellus phaeoxanthus A.R.Gomes & Wartchow is described as a new species and is characterised by cordiform basidiospores similar to those of the recently described Coprinellus arenicola. However, it differs in the presence of voluminous pleurocystidia in the velar elements, which are shorter than in Coprinellus arenicola, and in the lack of clamp connections. In addition, exsiccatae of a Brazilian collection identified as ‘Coprinus xerophilus’ are analysed, and because of the star-shaped velar patch on the pileus and the non-volvate stipe base, it is considered to be the same as Coprinus calyptratus, representing a new record from South America.

A taxonomic revision of Begonia veitchii Hook.f. is presented. Two taxa are newly recognised as synonyms of Begonia veitchii: B. baumannii Lemoine and B. clarkei Hook.f. Addditionally, two infraspecific taxa are newly described and illustrated: Begonia veitchii var. machupicchuensis Tebbitt, which is endemic to the Cusco Department of Peru, and B. veitchii var. lanatifolia Tebbitt, which is endemic to Chuquisaca Department, Bolivia. Begonia veitchii, as well as four taxa recognised as synonyms of B. veitchii – B. baumannii, B. rosaeflora Hook.f., B. coriacea A.DC. and B. clarkei – are lectotypified. A key, descriptions, distribution map and illustrations are provided for all the recognised infraspecific taxa of Begonia veitchii.

Thesmophora scopulosa Rourke (Stilbaceae) a monotypic genus endemic to the Ceres mountains, South Western Cape Province, South Africa, is described. It is characterized particularly by its pendulous ovules and 4-lobed corolla.

A detailed description of Nepenthes reindwardtiana Miquel is provided, and its distribution is reviewed. One new variety, N. reindwardtiana var. samarindaiensis Adam & Wilcock, from Kalimantan in Borneo is described.

Pterospermum mengii P.Wilkie (Dombeyoideae, Malvaceae/Sterculiaceae) from Cambodia and Vietnam is described as new to science and illustrated. It is most similar to Pterospermum pecteniforme Kosterm., sharing a distinctive wavy ridge at the margin of each locule of the capsular fruit, but differing by its larger leaves, oblong to obovate leaf shape, deeply cordate leaf base, and stellate indumentum on the undersurface of the leaves and fruit.