A reassessment of collections of Marquesan Apocynaceae assigned to the genera Neisosperma Raf., Ochrosia Juss., and Rauvolfia L. revealed that two nomenclatural changes are necessary: 1) transfer of Neisosperma brownii Fosberg & Sachet to the genus Ochrosia, as Ochrosia brownii (Fosberg & Sachet) Lorence & Butaud, comb. nov., and 2) transfer of Ochrosia nukuhivensis Fosberg & Sachet to Rauvolfi...

A new species of Hoya R.Br. from Mindanao (Philippines), Hoya migueldavidii Cabactulan, Rodda & Pimentel, is described and illustrated. It is a member of Hoya section Acanthostemma (Blume) Kloppenb. that is particularly speciose in the Philippines. It is compared with the similar Hoya loheri Kloppenb, also endemic of the Philippines, from which it differs in indumentum of the vegetative parts (...

Tropical rain forests, the richest terrestrial ecosystems in biodiversity on Earth are highly threatened by global changes. This paper aims to infer the mechanisms governing species tree assemblages by characterizing the phylogenetic structure of a tropical rain forest in a protected area of the Congo Basin, the Dja Faunal Reserve (Cameroon). We re-analyzed a dataset of 11538 individuals belong...

electrophoresis of proteins, especially seed proteins, and karyological studies are useful techniques for determining species and solving the problems of modern taxonomy. the present study was carried out on two species of the apocynaceae family, rhazya stricta decasine and nerium 01eancder.l. seed samples of these two genera were taken from the south-east of iran and sds-page analysis of their...

Recent botanical explorations carried out in the northwest of Argentina allowed us to find two new species Apocynaceae, one them, which belongs genus Petalostelma, was found Garrapatas Private Reserve, General Güemes, Mountain Chaco region, other, Philibertia, Quebrada de Escoipe, Chicoana, inter-Andean valleys. In this contribution both taxa are described and illustrated.

Ceropegia palustris Pursh and Lyonia maritima Elliott (Apocynaceae: Asclepiadoideae) are currently recognized as synonyms of Funastrum angustifolium (Pers.) Liede & Meve. The diminutive vine, one of the most readily recognizable taxa among a number of taxonomically difficult climbing milkweeds in the southeastern United States, occurs primarily in swamps, hammocks, and salt marshes. A neotype i...

Bisindole natural products consist of two monomeric indole alkaloid units as their obligate constituents. Bisindoles are more potent with respect to their biological activity than their corresponding monomeric units. In addition, the synthesis of bisindoles are far more challenging than the synthesis of monomeric indole alkaloids. Herein is reviewed the enantiospecific total and partial synthes...

vinca minor, vinca major, vinca variegata and vinca rosea are different species of vinca genus, of apocynaceae family. in addition to ornamental applications, they are placed in the group of medicinal plants , because of the various alkaloids they possess. the purpose of this research was the investigation of the antileishmanial effects of the methanolic and crude extracts of leaves and stems o...