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Heiduk, Annemarie ; Styles, David G. A. ; Meve, Ulrich:
Long-lost Ceropegia rudatisii (Apocynaceae-Asclepiadoideae) - Rediscovered and redescribed after 100 years.
In: Phytotaxa.
Bd. 498
(2021)
Heft 2
.
- S. 123-131.
ISSN 1179-3155
DOI: https://doi.org/10.11646/phytotaxa.498.2.5
Abstract
Ceropegia rudatisii Schlechter was first collected in KwaZulu-Natal, South Africa in 1903 but described in 1905 based on a second independent collection. This Ceropegia species was not seen again for a century and believed to be extinct. In 2020, however, two very small populations were discovered not far from the type locality. The subsequent examination of living flowering plants allowed an updated morphological description and, for the first time, illustration of C. rudatisii with photographs of living flowering plants and details thereof. We provide a comprehensive species description including novel aspects and details, i.e. bracts, inner corolla colouration, pollinarium and pollinia, as well as posture of corolla lobe tips of fresh flowers in situ—being not suberect-spreading, as given in earlier treatments, but flaccid-pendulous. The conservation status of C. rudatisii according to IUCN Red List criteria is furthermore discussed. Conservation measures are indispensable and urgent to avoid the extinction of C. rudatisii.
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| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Keywords: | Ceropegieae; Critically Endangered; KwaZulu-Natal Sandstone Sourveld; South Africa; species rediscovery; Eudicots |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Lehrstuhl Pflanzensystematik Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Lehrstuhl Pflanzensystematik > Lehrstuhl Pflanzensystematik - Univ.-Prof. Dr. Sigrid Liede-Schumann Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 580 Pflanzen (Botanik) |
| Eingestellt am: | 31 Mai 2021 09:20 |
| Letzte Änderung: | 31 Mai 2021 09:21 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/65509 |