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Two new species from the Ile des Pins (New Caledonia), and a not so new species from Grande Terre (New Caledonia)

Title data

Meve, Ulrich ; Gâteblé, Gildas ; Liede-Schumann, Sigrid:
Two new species from the Ile des Pins (New Caledonia), and a not so new species from Grande Terre (New Caledonia).
In: Phytotaxa. Vol. 349 (2018) Issue 3 . - pp. 201-213.
ISSN 1179-3155
DOI: https://doi.org/10.11646/phytotaxa.349.3.1

Abstract in another language

Two New Caledonian endemics of Apocynaceae-Asclepiadoideae, predominantly natives of the Ile des Pins, an island south of New Caledonia known for its high microendemism, are here described as new to science. One new species, Heterostemma bicanthaceum (Ceropegieae), is related to H. acuminatum Decne. but differs remarkably in a number of floral characters such as a raised central corolla tube, and a dull purple-brown and wrinkled corona with expanded lateral appendages forming coronal rail-like structures. The other species described and illustrated, Marsdenia kuniensis (Marsdenieae), is sister toMarsdenia dognyensis from the Grande Terre. Its fleshy whitish to rose corolla with the tube closely encircling the corona as well as protruding and deltoid corona lobes broader than long distinguish the new species. These two species are restricted to calcareous forests and a preliminary IUCN red list assessment is proposed. Additionally, the name Marsdenia neomicrostoma is proposed for a species whose members have hitherto mostly been listed under the name Marsdenia microstoma, a name that has to be considered as nomen dubium after its type has been lost. The species is a typical element of ultramafic soil vegetation, and therefore widespread on Grande Terre but missing on the Ile des Pins.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER146681
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Plant Systematics
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Plant Systematics > Chair Plant Systematics - Univ.-Prof. Dr. Sigrid Liede-Schumann
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 03 Apr 2019 12:43
Last Modified: 03 Apr 2019 12:43
URI: https://eref.uni-bayreuth.de/id/eprint/48223