Morphometric analysis of the Bersama abyssinica Fresen. complex (Melianthaceae) in East Africa |
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Authors: | K S Mikkelsen O Seberg |
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Institution: | (1) Botanisk Institut, Copenhagen K, Denmark, DK |
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Abstract: | The morphological variation of the Bersama abyssinica complex in East Africa is analysed. A wide range of characters was examined both on specimens collected for this study and
on a selection of type material. The character distribution of each character was examined individually. The ratios of some
of the characters were calculated, and selected characters were plotted in pairwise combinations. Non-metric multidimensional
scaling and principal component analysis were employed in the multivariate analyses. On the basis of the patterns observed
in the numerical analyses as well as those in the field, a new combination, Bersama abyssinica Fresen. ssp. rosea (Hoyle) Mikkelsen is proposed. The presence of the two flower types described by White: (a) male flowers, with long stamens
and short gynoecium and (b) female flowers, with short, abortive stamens and long gynoecium is confirmed, but found to be
taxonomically insignificant.
Received May 12, 2000 Accepted February 13, 2001 |
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Keywords: | : Bersama Melianthaceae East Africa morphometrics PCA |
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