SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Johansson, J.T.; Wong, K.M..

The genus Gentingia (Rubiaceae, Rubioideae) is described to accommodate the species G. subsessilis. It is a small tree or shrub with white, sessile or almost sessile, terminal flowers and glossy blackish, 1- or 2-seeded drupes, and is known only from submontane rain forests in NW. Peninsular Malaysia. It differs from the closely related genera Rennellia, Prismatomeris and Motleyia in the morphology of branches, stipules, inflorescence and calyx.

A new species of Coelospermum (Rubiaceae) from New Caledonia

Ano: 1988

URL: http://www.repository.naturalis.nl/record/524497

Affinis C. monticoli Baillon ex Guill. sed vulgo fruticosa foliis crassis, plerumque retusis vel emarginatis, calycibus brevibus. – Frutex ad 3 m altus, raro scandens ad 7 m altus. Stipulae 1,3- 4,1 mm longae. Folia 2 ad nodos. Petiolus 3-31 mm longus. Lamina 2,3-15 cm longa, 1-7 cm lata, oblonga vel anguste oblonga vel anguste ad late obovata vel elliptica vel late elliptica, coriacea, infra pallide viridis vel glauca; basis anguste cuneata; margo plus minusve reflexa; apex obtusus vel retusus vel emarginatus vel acuminatus acumine ad 3 mm longo; nervi secundarii (4 —) 5—9 (—10); domatia absentia. Inflorescentia corymbosa vel breviter paniculata, 1-4 cm longa, nodis tumidis, (1-)5-20-flora; inflorescentiae partiales 3-7, 1-4-florae; pedicellus simplex vel...

Motleyia, a new genus of the Ribiaceae from Borneo

Ano: 1987

URL: http://www.repository.naturalis.nl/record/524472

The monotypic genus Motleyia (Rubiaceae) and the species M. borneensis are described on material from NW. Borneo. It is similar to Prismatomeris, from which it differs by the morphology of stipules, leaves, flowers, fruits and pollen grains and the occurrence of colleters inside the calyx limb.

Revision of the genus Rennellia Korth. (Rubiaceae-Rubioideae)

Ano: 1987

URL: http://www.repository.naturalis.nl/record/524827

In this revision of the genus Rennellia Korth. four species are recognized: R. elliptica Korth., R. amoena (Bremek.) J.T. Johansson comb, nov., R. speciosa (Wall, ex Kurz) J.D. Hooker, and R. morindiformis (Korth.) Ridley. Rennellia includes shrubs and small trees with white to pale bluish or pale violet flowers in panicle-, umbel-, or spike-like cymes. The pedicels and ovaries are nearly always connate. Rennellia is confined to tropical rain forests in SE Asia, Sumatra, and Borneo. The genus is closely related to Gentingia, Motleyia, and Prismatomeris, but differs from these genera in, e.g., inflorescence morphology and colour of the flowers. A key to the species is presented, and all species are illustrated with line drawings and their distributions...

Revision of the genus Caelospermum Blume (Rubiaceae, Rubioideae, Morindeae)

Ano: 1989

URL: http://www.repository.naturalis.nl/record/525737

The genus Caelospermum Blume is revised, and a key to the 7 species recognized is presented. Caelospermum consists of lianas and, sometimes, shrubs. The genus is distributed in SE. Asia, Indonesia, the Philippines, the Caroline Islands, Papua New Guinea, the Solomon Islands, E. Australia and New Caledonia. Caelospermum is closely related to Morinda, Pogonolobus and Gynochthodes, from which it differs by inflorescence and pollen morphology, etc. Caelospermum paniculatum F. Muell. var. syncarpum J.T. Johansson is described and two recombinations, C. volubile (Merr.) J.T. Johansson and C. salomoniense (Engl.) J.T. Johansson, are made. All species are illustrated with line drawings, and distribution maps are provided.