Plant Systematics and Evolution

, Volume 193, Issue 1–4, pp 53–68 | Cite as

Morphometric variation in theAlonsoa meridionalis complex (Scrophulariaceae)

  • Fanny Astholm
  • Yvonne Nyman


Morphological field studies of 27 populations of theA. meridionalis complex were conducted in Ecuador. It is possible to distinguish four different form series by the position of the stamens in relation to the style. This trait was congruent with the overall morphometric variation, shown by the results of a canonical discriminant analysis (CDA). The taxonomy of the species complex is discussed based upon the results of the CDA. The degree of outcrossing varied in different form series, from a comparatively high degree of selfing to predominantly outcrossing, as indicated by the variation within relative to among populations. This is probably due to the varying potentials for self-deposition owing to differences in the degree of herkogamy.

Key words

Scrophulariaceae Alonsoa Ecuador morphometric variation canonical discriminant analysis breeding system 


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Copyright information

© Springer-Verlag 1994

Authors and Affiliations

  • Fanny Astholm
    • 1
  • Yvonne Nyman
    • 1
  1. 1.Department of Systematic BotanyUniversity of GöteborgGöteborgSweden

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