Related Experiment Video
Updated: Apr 21, 2026

At-Risk Butterfly Captive Propagation Programs to Enhance Life History Knowledge and Effective Ex Situ Conservation Techniques
Published on: February 11, 2020
Bidensmeyeri (Asteraceae, Coreopsideae): a new critically endangered species from Rapa, Austral Islands
Vicki A Funk1, Kenneth R Wood2
1US National Herbarium, Department of Botany, Smithsonian Institution, PO Box 37012, Washington, DC 20013-7012, USA.
Abstract:
Bidensmeyeri (Asteraceae/Compositae) is described and illustrated from Rapa, Austral Islands, (French Polynesia). This new species is presumed to be most closely related to Bidenssaint-johniana from nearby Marotiri Island. Bidensmeyeri may be distinguished from Bidenssaint-johniana based on the length of the peduncle (3 cm versus 10 cm), apex of the inner involucral bracts (glabrous vs. puberulent), smaller leaves (2.0-2.3 cm vs. 5-6 cm), and the general smaller size of the new species. Known from less than 50 individuals and restricted to one remote location, Bidensmeyeri falls into the IUCN Critically Endangered (CR) category. The new species is named in honor of Dr. Jean-Yves Meyer, Délégation à la Recherche, Polynésie Française.
Related Concept Videos
Conservation of Declining Populations
Threats to Biodiversity
Conservation of Small Populations
Habitat Fragmentation
Keystone Species
Epiphytes, Parasites, and Carnivores

