Morat P. 2010. — Les botanistes récolteurs en Nouvelle-Calédonie de 1774 à 2005. Adansonia sér. 3, 32 (2) : 159-216.

The plant collectors in New Caledonia front 1774 to 2005.

For the first time since 1911, a recapitulative list of plant collectors for New Caledonia is established. It is accompanied by information concerning their nationalities, functions, period of active collecting, nature of their collections and where the collections are now housed in the different herbaria of the world.

Rakotondrainibe F. 2010. — Le genre Rumohra Raddi (Pteridophyta, Dryopteridaceae) á Madagascar : une espéce et deux combinaisons nouvelles. Adansonia sér. 3, 32 (2) : 217-228.

The genus Rumohra Raddi (Pteridophyta, Dryopteridaceae) in Madagascar: a new species and two new combinations.

Four of the five species of Rumohra known in the world live in Madagascar. Three of them are endemic to the island. This new treatment since that of Tardieu-Blot (1958) establishes the synonymy between R. capuronii Tardieu and R. adiantiformis (G.Forst.) Ching, and between R. glandulosa Tardieu and R. lokohensis Tardieu. It also gives a description of a new species, R. linearisquamosa Rakotondr. This species differs from all others by the morphology of the scales. Those of the rhizome are linear with an irregularly dentate margin, those of the abaxial side of costae and costulae are substellate or arachnoid. A new key for the identification of the species supplements the taxonomic information. The description, distribution map on the island and list of herbarium samples available in Paris are given for each species.

Randrianasolo A. & Lowry II P. P. 2010. — A new species of Ellipanthus Hook.f. (Connaraceae) from humid forest in east-central Madagascar. Adansonia sér. 3, 32 (2) : 229-233.

A new species of the genus Ellipanthus Hook.f. is described from the Ankeniheny forest, a low- to mid-elevation humid forest in eastern Madagascar. It differs from the single species previously recognized on the island by leaf features, especially the size and shape of the blade and the shape of the apex. An illustration is provided for the new taxon, along with a preliminary assessment of its conservation status and a distribution map. An identification key is also included.

Braga J. M. A. & Freitas M. de F. 2010. — Neotypifi cation of Rhipsalis triangularis Werderm. (Cactaceae), a critically endangered species from southeastern Brazil. Adansonia sér. 3, 32 (2) : 235-238.

Rhipsalis triangularis Werderm. (Cactaceae) is neotypified on the basis of the first specimen collected almost 60 years after the publication of the original description. The species is critically endangered and the only known populations in their natural habitat are restricted to the rocky coast of Pedra Branca Massif in the State of Rio de Janeiro, Brazil.

Néotypification de Rhipsalis triangularis Werderm. (Cactaceae), une espèce du sud-est du Brésil en danger critique d'extinction.

Rhipsalis triangularis Werderm. (Cactaceae) est néotypifié sur la base du premier spécimen collecté presque 60 ans après la publication de la description originale. L'espèce est en danger critique d'extinction, et les seules populations connues dans leur habitat naturel sont limitées à la côte rocheuse du Massif de Pedra Branca, dans l'État de Rio de Janeiro, Brésil.

Swenson U. & Munzinger J. 2010. — Revision of Pycnandra subgenus Sebertia (Sapotaceae) and a generic key to the family in New Caledonia. Adansonia, sér. 3, 32 (2) : 239-249.

The satellite genus Sebertia (Sapotaceae, Chrysophylloideae) in New Caledonia is here recognized as Pycnandra subgenus Sebertia, a group comprising only two species. Pycnandra canaliculata is described and illustrated as new from the south part of Grande Terre where it occurs in maquis vegetation and humid forest on ultramafic soils, often along watercourses. This species is well known among many biologists but misidentified until now as Sebertia gatopensis, a synonym of P. blanchonii that resides in northwest Grande Terre. In New Caledonia, Pycnandra is the only sapotaceous genus with flowers that lack staminodes and Pycnandra subgenus Sebertia is characterized by small white flowers and fruits lacking stylar remnants. The fruits are characteristic with a scale-like epidermis that is translucent and peels off in P. acuminata versus brown and persistent in P. canaliculata. Using field data and applying IUCN criteria, we assess the preliminary threat as Least Concern (LC) for P. acuminata and Vulnerable (VU) for P. canaliculata.