Une nouvelle espèce de Capparis L. (Capparaceae) de la Province de Sekong, Laos. Une nouvelle espèce de Capparis L., C. sekongensis Fici, Souvann., Lanors. & Lamxay, sp. nov., est décrite et illustrée de la province de Sekong, sud du Laos. La nouvelle espèce appartient à Capparis sect. Monostichocalyx Radlk., et ressemble à C. khuamak Gagnep., dont elle se distingue par plusieurs caractères comme les jeunes rameaux glabres pruineux, les pédoncules plus courts, glabres, les pétales laineux sur la face interne, le gynophore plus court et l'ovaire subglobuleux.
Three names in the genus Cistus L. are analysed from a nomenclatural perspective: Cistus pouzolzii Delile, C. & times; florentinus Lam., and C. & times; varius Pourr. The corresponding lectotypes for C. pouzolzii Delile and C. varius Pourr. are designated based on specimens preserved in the herbarium of Mus & eacute;um national d'Histoire naturelle de Paris, at P. The name C. & times; florentinus was studied by Demoly, who designated its lectotype from a specimen preserved in the P herbarium in 1994. Through the typification of C. & times; varius Pourr., we conclude, as Demoly previously stated, that the name C. varius Pourr. should definitively be considered a later synonym of C. & times; florentinus Lam., the priority name for naming the hybrid between C. monspeliensis L. and C. salviifolius L. Finally, the lectotypification of C. pouzolzii L. led us to conclude that it is an independent species unrelated to the aforementioned hybrid.
Lectotypification de deux taxons endémiques turcs du genre Klasea Cass. (Asteraceae, Cardueae). Deux taxons endémiques turcs du genre Klasea Cass. (Asteraceae) sont lectotypifiés, à savoir Klasea aznavouriana (Bornm.) Greuter & Wagenitz et K. bornmuelleri (Azn.) Greuter & Wagenitz. Les lectotypes correspondants sont déposés à B et G. En outre, les synonymes pertinents, les détails du type et les images des spécimens types sont fournis.
A new species in the genus Cynorkis Thouars (Orchidaceae), Cynorkis benaraensis Vennetier, Traclet & Dimassi, sp. nov. is described for the island of Mayotte. This taxon is only known from 6 stations around the summit of Mount B & eacute;nara, the highest point of the island of Mayotte (660 m), from where it is endemic. It differs from the other Cynorkis species in section Gibbosorchis H.Perrier by a combination of several characteristics: foliage appearing after anthesis, tubers that can form long rhizomes on cliff, strongly glandular-hispid sepals, a pink labellum with a darker central spot, an almost exclusively rupicolous habit (on phonolite) and a flowering period during mid-June to mid-September. The description is based on herbarium material collected at these localities, as well as a living specimen grown in Mayotte at the Conservatoire botanique national de Mascarin (CBNM). The species' threat status is estimated as vulnerable (VU) according to IUCN criteria.
