Cleistogamy

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cleistogamy

[‚klī′stäg·ə·mē]
(botany)
The production of small closed flowers that are self-pollinating and contain numerous seeds.

Cleistogamy

 

the self-pollination and self-fertilization of plants with usually small, plain, closed (cleistogamous) blossoms.

Cleistogamous flowers have little pollen. The pollen either falls onto the stigma in the closed blossom or, more rarely, germinates in the anthers, pierces their walls, and grows into the pistil. Cleistogamy is observed in plants of various families, including Arachis, many violets, impatiens, chickweed, toadflax, wood sorrel, and barley. Under favorable conditions cross-pollination is also sometimes observed in typically cleistogamous plants (for example, in some violets).

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To investigate chasmogamous flowers, in the largest population (470 plants), 32 plants were randomly selected and examined for chasmogamous and cleistogamous flower ratios.
cleistogamous and restricted, Iberian chasmogamous are peninsula & North self-compatible Africa A.
Labiatae) with a model for the evolution of the cleistogamous flower.
Date of production of the first cleistogamous flower was significantly earlier for HL plants compared to FP plants, with virtually no influence of site.
We surmise that this discrepancy may be accounted for by Parks's study being based on the subterranean cleistogamous flowers of T.
Pods were observed to determine if they belong to a cleistogamous or chasmogamous species.
The grass produces dimorphic seeds from terminal panicles of potentially outcrossed flowers and self-fertilized cleistogamous flowers in the lower leaf sheaths (cleistogenes) (Weatherwax 1928, Clay 1983, Cheplick and Clay 1989).
linearis in many locations, and is unique in the genus for producing salmon to yellow chasmogamous flowers as well as minute whitish cleistogamous flowers.
For example, self-pollination and cleistogamous flowers (closed flower structure) severely reduce gene flow between populations, while cross-pollination and chasmogamous flowers (open flower structure) may facilitate significant gene flow between populations.
It has a mixed mating system, with individuals producing both obligately self-pollinated cleistogamous flowers and potentially outcrossed chasmogamous flowers.
Development of cleistogamous and chasmogamous flowers in Lamium amplexicaule (Labiatae)--Example of heteroblastic inflorescence development.
Roundhead lespedeza plants contains both cleistogamous (self-pollinated) and chasmogamous (cross-pollinated) flowers with most seed set occurring thought cleistogamy (Cole and Biesboer, 1992).