Seed-coat characteristics of selected southern African species of Polygala L. (Polygalaceae)

Scanning electron microscope studies of the seeds of selected southern African Polygala species were made. The seed-coat sculpture is described and illustrated with SEM photomicrographs. Although five species could be identified on the basis of seed surface sculpture, it proved difficult to identify...

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Bibliographic Details
Published inSouth African journal of botany Vol. 59; no. 6; pp. 592 - 596
Main Authors Isaacs, M.J.H., Weitz, F.M., Johnson, C.T.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.12.1993
Subjects
Micromorphology
Polygala
Polygalaceae
scanning electron microscopy
seed surface sculpture
seed-coat
SEM
species
testa
South Africa
SEM
seed-coat
Polygala
Polygalaceae
Micromorphology
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Summary:Scanning electron microscope studies of the seeds of selected southern African Polygala species were made. The seed-coat sculpture is described and illustrated with SEM photomicrographs. Although five species could be identified on the basis of seed surface sculpture, it proved difficult to identify most of the species on seed-coat structure alone. Some correlations were found between seed-coat sculpture and morphologically similar groups. Skandeerelektronmikroskoop-studies van die sade van geselekteerde Suid-Afrikaanse Polygala spesies is gemaak. Die saadvelskulptuur word beskryf en geïllustreer met behulp van SEM-fotomikrograwe. Alhoewel vyf spesies op grond van saadoppervlakteskulptuur geïdentifiseer kon word, het die studie getoon dat dit moeilik is om spesies slegs op grond hiervan te identifiseer. Sekere korrelasies is tussen saadvelskulptuur en morfologies ooreenstemmende groepe gevind.
ISSN:0254-6299
1727-9321
DOI:10.1016/S0254-6299(16)30675-5