Definition of heterostyly in English:

Share this entry

heterostyly

Pronunciation: /ˈhedərəˌstīlē/

noun

Botany
The condition (e.g., in primroses) of having styles of different lengths relative to the stamens in the flowers of different individual plants, to reduce self-fertilization.
Example sentences
  • Flowering plants have several mechanisms that have evolved to prevent self-fertilization, e.g. self-incompatibility systems, heterostyly and dichogamy.
  • Although gender specialization is not a regular feature of heterostyly, reproductive differences between morphs has been reported for most studied distylous species.
  • Darwin's correlation between the phenotype and the cross-compatibility of the two forms of flower provided the foundation for subsequent analyses of heterostyly in Primula.

Derivatives

heterostylous

Pronunciation: /ˌhetərəˈstīləs/
adjective
Example sentences
  • Field observations confirmed that the species is heterostylous with the pistil and anthers exhibiting reciprocal heights in the two morphs, although pollen size and sculpturing do not vary.
  • Pentanisia appears to exhibit dimorphisms typically associated with heterostylous plants.
  • Both F. jinshaense and F. gilesii are self-incompatible with heterostylous flowers and are diploid.

Origin

Late 19th century: from hetero- 'different' + Greek stulos 'column' + -y3.

Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.