Mjh. Isaacs et al., SEED-COAT CHARACTERISTICS OF SELECTED SOUTHERN AFRICAN SPECIES OF POLYGALA L (POLYGALACEAE), South African journal of botany, 59(6), 1993, pp. 592-596
Scanning electron microscope studies of the seeds of selected southern
African Polygala species were made. The seed-coat sculpture is descri
bed and illustrated with SEM photomicrographs. Although five species c
ould be identified on the basis of seed surface sculpture, it proved d
ifficult to identify most of the species on seed-coat structure alone.
Some correlations were found between seed-coat sculpture and morpholo
gically similar groups.