heterostyly

/ ˈhɛtərəˌstaɪlɪ /

noun

1. the condition in certain plants, such as primroses, of having styles of different lengths, each type of style in flowers on different plants, which promotes cross-pollination

Other Word Forms

• heterostylous adjective

Word History and Origins

Origin of heterostyly¹

C20: from Greek, from heteros different + stylos pillar

Example Sentences

The significance of heterostyly, whether or not we now regard it as an arrangement for the normal production of hybrids, is comprehensively expressed by Darwin: "We may feel sure that plants have been rendered heterostyled to ensure cross-fertilisation, for we now know that a cross between the distinct individuals of the same species is highly important for the vigour and fertility of the offspring."

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If we remember how important the interpretation of heterostyly has become in all general problems as, for example, those connected with the conditions of the formation of hybrids, a fact which was formerly overlooked, we can appreciate how Darwin was able to say in his autobiography: "I do not think anything in my scientific life has given me so much satisfaction as making out the meaning of the structure of these plants."

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