| 词汇 | chasmogamous |
| 释义 | chasmogamous adjective biology specializeduk /kæzˈmɒɡ.ə.məs/ us /kæzˈmɑː.ɡə.məs/ Chasmogamous plants have open flowers that can be pollinated(= have pollen taken from one plant or part of a plant to another so that new plant seeds can be produced) by something such as an insect or the wind: （植物）开花授粉的 A cleistogamous species consists of individuals that produce both chasmogamous (open) and cleistogamous (permanently closed) flowers.闭花授粉物种包括那些既能开花授粉（花朵开放的）又能闭花授粉（花朵永久闭合的）的植物。 All the florets were chasmogamous. Compare cleistogamous Most angiosperms are hermaphroditic and produce only open (chasmogamous) flowers. Viola pubescens (Violaceae) is a perennial herb with chasmogamous and cleistogamous flowers. They conducted an extensive literature survey on germination of seeds from chasmogamous (CH, open) vs cleistogamous (CL, closed, obligately self-pollinated) flowers. Plant reproduction anther asexual reproduction asexuality asexually barrenness breeder cleistogamous endosperm germinate pistillate placentation pollinate pollination pollinator self-incompatible self-pollination sexlessly siltation sporangium stamen You can also find related words, phrases, and synonyms in the topics: Flowers - general words Examples of chasmogamouschasmogamous Height and production of chasmogamous flowers were plastic responses, but flowering times were population specific. There are cleistogamous flowers, which self-fertilize and never open, and chasmogamous flowers, which open and receive pollen from other plants. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There are both cleistogamous flowers which never open, and chasmogamous flowers which open and allow insects inside; both types produce seed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A chasmogamous flower opens at maturity, exposing stamens and style to allow fertilization. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Some "cleistogamous" flowers never open, in contrast to "chasmogamous" flowers that open and are then pollinated. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Some species have mixed mating systems, producing both chasmogamous and cleistogamous flowers. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Fertilization in a chasmogamous flower depends on the receipt of appropriate pollen, and often fails. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The petals of a chasmogamous flower can be attractive to pollinators; cleistogamous flowers often lack petals. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Virtually all plants that produce cleistogamous flowers also produce chasmogamous ones. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Chasmogamous flowers also provide pollen to other plants. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The very uncommon mode of reproduction characterized by aboveground chasmogamous flowers and belowground cleistogamous flowers is called amphicarpy and it is known from fewer than 100 plant species. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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