SciELO - Scientific Electronic Library Online

 
vol.49 issue1First record of Botryococcus braunii Kützing from NamibiaAspects of the population biology, life history and threats to Aloe ortholopha Christian and Milne-Redh.: A serpentine endemic from the northern Great Dyke of Zimbabwe author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Article

Indicators

Related links

  • On index processCited by Google
  • On index processSimilars in Google

Share


Bothalia - African Biodiversity & Conservation

On-line version ISSN 2311-9284
Print version ISSN 0006-8241

Abstract

SIEBERT, Stefan J.  and  STRUWIG, Madeleen. Borassus aethiopum Mart. (Arecaceae) in Limpopo province with a key to South African palms. Bothalia (Online) [online]. 2019, vol.49, n.1, pp.1-6. ISSN 2311-9284.  http://dx.doi.org/10.4102/abc.v49i1.2374.

BACKGROUND: Borassus aethiopum Mart. commonly occurs in many parts of tropical Africa, and in South Africa it is restricted to the Leydsdorp region where it is conspicuous along the Selati River. The species is sometimes considered to have been introduced to South Africa because of its disjunct distribution. It has remained poorly studied and little is known about the local populations of this palm. OBJECTIVES: This study provides a descriptive treatment and documents the population structure of B. aethiopum in this area, and presents a key to the six indigenous palm species of South Africa. METHOD: All accessible populations were surveyed and documented, and eight transects were randomly placed to gather data on size-class distributions. Borassus aethiopum and other indigenous palm species were compared morphologically. RESULTS: The population structure analyses of B. aethiopum revealed a monotonic decline, but the permutation index suggested that the species is prone to recruitment events. This is supported by patches that are dominated by specific height classes. Leaf shape and size, fruit size and geographical distribution were the diagnostic characters most useful to recognise the species of South African indigenous palms. CONCLUSION: Borassus aethiopum is distinguishable from other South African palms based on stem, leaf and fruit characters. It is considered as indigenous to Granite Lowveld as the palm is part of the natural vegetation and is characterised by a size-class distribution reflecting a stable population.

        · text in English     · English ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License