Full Text Available
Note: Clicking the button above will open the full text document at the original institutional repository in a new window.
A taxonomic revision of Lachnaea L. (Thymelaeaceae)
Thesis (PhD (Botany))--University of Pretoria, 2000.
Saved in:
| Other Authors: | |
|---|---|
| Format: | Thesis |
| Language: | English |
| Published: |
University of Pretoria
2013
|
| Subjects: | |
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1867613672427225088 |
|---|---|
| access_status_str | Open Access |
| author2 | Van Wyk, Abraham Erasmus (Braam) |
| author_browse | Van Wyk, Abraham Erasmus (Braam) |
| author_facet | Van Wyk, Abraham Erasmus (Braam) |
| collection | Thesis |
| dc_rights_str_mv | © 2000, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Thesis (PhD (Botany))--University of Pretoria, 2000. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/31542 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:39:52.104Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/31542 A taxonomic revision of Lachnaea L. (Thymelaeaceae) Van Wyk, Abraham Erasmus (Braam) Beyers, Josephine Bertha Pauline Lachnaea l. (thymelaeaceae) cape of good hope (sa) Plants classification cape of good hope (sa) Classification lachnaea l. (thymelaeaceae) UCTD Thesis (PhD (Botany))--University of Pretoria, 2000. Lachnaea L., a genus endemic to the Cape Floristic Region, occurs almost exclusively in fynbos vegetation. In this revision a brief taxonomic history of Lachnaea is presented. Palynology and chromosome numbers were found to be taxonomically insignificant at specific level. Evidence from macromorphology, leaf anatomy, ecology and geographical distribution is used as the basis for species delimitation. Circumscription of the genus is extended to include the species of Cryptadenia Meisn. Previously proposed sections in Lachnaea are not upheld. Four species and all varieties are reduced to synonymy; 12 species and two subspecies are newly described and one new name is proposed. Forty species and two subspecies are now recognised. Geographically most species are concentrated in the 3319 (Worcester) grid. A phylogenetic hypothesis of Lachnaea resulting from two cladistic analyses is presented. The results of the analyses show that Lachnaea is monophyletic and that the sections are paraphyletic. The two analyses produced mixed resolution regarding the solitary-flowered species and gave conflicting results with regard to the evolutionary pathway of certain characters. Allopatric speciation appears to have been the dominant process in Lachnaea. Additional variables that may have governed diversification are altitudinal difference, allochory and post-fire regeneration strategies. The taxonomic treatment includes keys to the species and subspecies, detailed descriptions with notes on nomenclature, diagnostic features, relationships, distribution, ecology and conservation status. Line drawings and a distribution map are provided for each species. Plant Science Unrestricted 2013-09-09T12:21:15Z 2007-12-20 2013-09-09T12:21:15Z 2000-09-01 2000 2007-12-20 Thesis Beyers, JBP 2000, A taxonomic revision of Lachnaea L. (Thymelaeaceae), PhD thesis, University of Pretoria, Pretoria, viewed yymmdd < http://upetd.up.ac.za/thesis/available/etd-12202007-095954/ > H587/ag http://hdl.handle.net/2263/31542 http://upetd.up.ac.za/thesis/available/etd-12202007-095954/ en © 2000, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf application/pdf application/pdf application/pdf application/pdf University of Pretoria |
| spellingShingle | Lachnaea l. (thymelaeaceae) cape of good hope (sa) Plants classification cape of good hope (sa) Classification lachnaea l. (thymelaeaceae) UCTD A taxonomic revision of Lachnaea L. (Thymelaeaceae) |
| title | A taxonomic revision of Lachnaea L. (Thymelaeaceae) |
| title_full | A taxonomic revision of Lachnaea L. (Thymelaeaceae) |
| title_fullStr | A taxonomic revision of Lachnaea L. (Thymelaeaceae) |
| title_full_unstemmed | A taxonomic revision of Lachnaea L. (Thymelaeaceae) |
| title_short | A taxonomic revision of Lachnaea L. (Thymelaeaceae) |
| title_sort | taxonomic revision of lachnaea l thymelaeaceae |
| topic | Lachnaea l. (thymelaeaceae) cape of good hope (sa) Plants classification cape of good hope (sa) Classification lachnaea l. (thymelaeaceae) UCTD |
| url | http://hdl.handle.net/2263/31542 http://upetd.up.ac.za/thesis/available/etd-12202007-095954/ |