| There seems to be no mechanism to limit self-pollination, and cleistogamous flowers have been reported in cultivated specimens of coralberry. |
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| Flowering plants had a mean of 9.5 inflorescences on 70 mostly cleistogamous spikelets. |
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| Nandi suggests that the flowers of L. intermedia Leggett are cleistogamous because of their reduced size. |
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| The majority of grasses in which cleistogamy occurs have both chasmogamous flowers and either one or two types of cleistogamous flowers. |
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| Some of these plants are cleistogamous, meaning that the flowers fail to open, an extreme way of ensuring self-pollination. |
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| We almost walked by the minute yellow flowers of Utricularia subulata, surprisingly still in bloom, and saw many more plants with cleistogamous flowers. |
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| Both types of cleistogamous flowers are fertile and undergo self-fertilization. |
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| Part of the anthesis takes place while the flower is still closed, thus indicating that the Maca flowers are partially cleistogamous. |
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| In many cleistogamous flowers the meeting of the gametes relies solely on gravity, pollen dropping within the flower. |
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| Several insects, birds and mammals have been suggested or proven as likely pollinators, but some species appear to be self-pollinated or even cleistogamous. |
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| Specifically, the new species sends up a taller stalk when flowering, has consistently and completely cleistogamous flowers, and shows a perianth that is both narrower and smaller. |
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| The most effective kind of obligate self-pollination, however, is that of cleistogamous flowers, which do not open and thus prevent the entry of insects. |
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| The flowers are cleistogamous, producing little pollen and no nectar, and attracting few insect visitors, and the petals fall off after only a few hours. |
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