[article] | Titre : | Two new species of Phialiphora (Spermacoceae, Rubiaceae) exemplify drought adaptations in western Madagascar | | Type de document : | Livre | | Auteurs : | Petra De Block, Auteur ; Franck Rakotonasolo, Auteur ; Alexander Vrijdaghs, Auteur ; Steven Dessein, Auteur | | Année de publication : | 2020 | | Article en page(s) : | pp. 267-282 | | Langues : | Anglais | | Catégories : | [ZG] Madagascar
| | Mots-clés : | Phialiphora nouvelle espèce description clé de destcription végétation sèche plante endémique | | Résumé : | "Two new Phialiphora species, P. glabrata De Block and P. valida De Block, are described, which brings the number of species in the genus to four. The two new species differ from the two previously described species by their glabrous branches, bracts, ovaries, calyces and fruits. They are easily distinguished from each other by the shape and size of the calyx lobes. A detailed description, illustration, distribution map and preliminary conservation assessment is given for the new species, which are assessed as critically endangered. We also present a key for the genus and discuss in detail the typical branching system, the capsules and the dispersal mechanism of Phialiphora. The description of these two new species exemplifies the uniqueness of the dry vegetations on unconsolidated white sands in western Madagascar, which are characterized by a high level of endemicity." (source : auteurs) | | Type de publication : | périodique | | Référence biblio : | De Block P., Rakotonasolo F., Vrijdaghs A., Dessein S., 2020 - Two new species of Phialiphora (Spermacoceae, Rubiaceae) exemplify drought adaptations in western Madagascar. Plant Ecology and Evolution, 153 (2) : 267-282. | | ID PMB : | 69603 | | DOI : | 10.5091/plecevo.2020.1675 | | En ligne : | https://www.ingentaconnect.com/contentone/botbel/plecevo/2020/00000153/00000002/ [...] | | Format de la ressource électronique : | document | | Permalink : | http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=69603 |
in Plant Ecology and Evolution > vol. 153, n°2 (Année 2020) . - pp. 267-282
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Affiner la rechercheNew localities of Dypsis leptocheilos in the Western Region of Madagascar / Franck Rakotonasolo in Palms, vol. 64, n°3 (Septembre 2020)
