navikey.net
NaviKey in Service
http://www.navikey.net/webprojects.html
Interactive Identification Keys powered by NaviKey. The most recent version of Java™ 2 Runtime Environment. Needs to be downloaded and installed first. Brassicaceae of the World. Fumaria of the British Isles. N America: USA, Kansas. Woody Plant Interactive Key for Mid-Atlantic Region of North America. N America: Mid-Atlantic Region. Genera of Angiosperm families. PNGtrees - Key to trees of Papua New Guinea. Asia: Papua New Guinea. Identification of Philippine Rubiaceae Genera. Key to the Belgian species ...
bio.uni-bayreuth.de
Revision of Cynanchum (Asclepiadaceae)
http://www.bio.uni-bayreuth.de/psysl/picind/cynafr.php
Morphology and Distribution of Cynanchineae in Africa. Projects Apocynaceae - Asclepiadoideae. African Cynanchinae (p.p.). Based on the study of living plants and herbarium material, a taxonomic revision of the genus. Sstr (excl. Sarcostemma R. Br.) in mainland Africa was conducted (for current delimitation of Cynanchum see Asclepiad Genera. Liede, S. 1993. A taxonomic revision of the genus Cynanchum. Liede, S. 1996. A revision of Cynanchum. Names excluded from Cynanchum. Delile = Solenostemma argel.