chasmogamous

American  

[kaz-mog-uh-muhs] / kæzˈmɒg ə məs /

adjective

Botany.

1. pertaining to or having pollination occur in a fully opened flower.

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Other Word Forms

• chasmogamy noun

Etymology

Origin of chasmogamous

First recorded in 1955–60

Example Sentences

His view that cleistogamous flowers are derived from originally chasmogamous flowers has been confirmed by more recent researches.

From Project Gutenberg

There are still but few researches on this point; Darwin found that in Ononis minutissima, which produces cleistogamous as well as self-fertile chasmogamous flowers, the crossed and self-fertilised capsules produced seed in the proportion of 100:65 and that the average bore the proportion 100:86.

From Project Gutenberg

The corolla and frequently other parts of the flower are reduced; the development of the seed may, therefore, be accomplished with a smaller expenditure of building material than in chasmogamous flowers; there is also no loss of pollen, and thus a smaller amount suffices for fertilisation.

From Project Gutenberg

Almost all these plants, as Darwin pointed out, have also chasmogamous flowers which render cross-fertilisation possible.

From Project Gutenberg

Conditions of nutrition in the broader sense are the factors which determine whether chasmogamous or cleistogamous flowers are produced, assuming, of course, that the plants in question have the power of developing both forms of flower.

From Project Gutenberg