A revision of the South African species of Holothrix Rich. ex Lindl. (Orchidaceae)

The genus Holothrix in South Africa is desc.ribe.d and its taxonomic history discussed. The results of using a computer to draw up a key and a dendrogram of the species are briefly discussed, as are some of the problems experienced. Various morphological characters are evaluated for their usefulness or otherwise in distinguishing species, and a key is provided. Where applicable, problems commonly encountered when attempting to identify the species are mentioned, and those characters pointed out which will distinguish the species. Details of biological interest are mentioned. Each species is illustrated by a drawing of sepal, petal and lip. Those species available in liquid preservative have the whole flower drawn as well, while those where a live plant could be obtained are illustrated in full, with a drawing of the whole plant, leaves, column and pollinia. In those cases where a range in shape, as opposed to size, is experienced, drawings are presented to illustrate this range. A detailed map of each species is presented, using the 1° gridsquare system, and also a table of the ranges of rainfall and altitude within the range of each species.

Grantor dc:publisher.institution

Department of Biological Sciences

Year dc:date.issued

1979

Author dc:creator

• Immelman, Kathleen Leonore

Advisor dc:contributor.advisor

• Schelpe, E A C L E

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/11427/18105

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/18105