Two species of Gaertnera in Thailand, viz. G. junghuhniana and sralensis, are enumerated described. A lectotype is designated for taiensis, a synonym junghuhniana. key to data on distribution, habit phenology also provided.

Species-specific traits constrain the ways organisms interact in nature. Some pairwise interactions among coexisting species simply do not occur; they are impossible to observe despite the fact that partners coexist in the same place. The author discusses these 'forbidden links' of species interaction networks. Photo: a sphingid moth, Manduca sexta visiting a flower of Tocoyena formosa (Rubiace...

In animal-pollinated plants, two factors affecting pollen flow and seed production are changes in floral display and the availability of compatible mates. Changes in floral display may affect the number of pollinator visits and the availability of compatible mates will affect the probability of legitimate pollination and seed production. Distyly is a floral polymorphism where long-styled (pin) ...

During the preparation of the Vascular Flora of the Marquesas Islands three new species of Coprosma (Rubiaceae, tribe Anthospermeae) have come to light and are described herein: Coprosma fatuhivaensis W. L. Wagner & Lorence, Coprosma meyeri W. L. Wagner & Lorence, and Coprosma temetiuensis W. L. Wagner & Lorence. Descriptions, illustrations, conservation status, and specimen citations are provi...

Background and aims – The genus Carapichea (Rubiaceae), recently resurrected separated from Psychotria , currently includes 24 Neotropical species is morphologically heterogeneous. A revision of the in Guianas presented here, as part authors’ work on Rubiaceae treatment Flora series. Material methods This paper based a study herbarium specimens BBS, BM, BR, BRB, CAY, INPA, K, P, P-JJR, U; type ...

A revision of the genus Mitragyna (Rubiaceae) in Thailand is reported. Four species, i.e. M. diversifolia, hirsuta, rotundifolia, and speciosa are described this taxonomic treatment. summary history, detailed morphological descriptions, distributions, ecology, phenology, vernacular names, uses, IUCN conservation status, specimens examined, photographs a key to species proposed. Two names lectot...