In this latter case we have a pollinium in its most highly developed and perfect condition.
在后一种情况下, 我们拥有处于最高度发达和完美状态的花粉。
单词 | Pollinia |
释义 |
Pollinia
原声例句
物种起源 In this latter case we have a pollinium in its most highly developed and perfect condition. 在后一种情况下, 我们拥有处于最高度发达和完美状态的花粉。 物种起源 The pollinia are by this means transported by insects from one flower to the stigma of another. 昆虫通过这种方式将花粉块从一朵花运送到另一朵花的柱头。 物种起源 A pollinium, when highly developed, consists of a mass of pollen-grains, affixed to an elastic foot-stalk or caudicle, and this to a little mass of extremely viscid matter. 高度发育的花粉由大量花粉粒组成, 附着在有弹性的足柄或叶柄上, 而这又是一小团极其粘稠的物质。 物种起源 As I have fully treated this subject in another work, I will here give only a few details on one alone of the most striking peculiarities of the flowers of orchids, namely, their pollinia. 由于我已经在另一部作品中详细讨论了这个主题, 因此我将在此仅就兰花的花朵最显着的特征之一, 即花粉块, 提供一些细节。
英语百科
Pollinium(重定向自Pollinia)
![]() ![]() Pollinium, or plural pollinia, is a coherent mass of pollen grains in a plant that are the product of only one anther, but are transferred, during pollination, as a single unit. This is regularly seen in plants such as orchids and many species of milkweeds (Asclepiadoideae). Usage of the term differs: in some orchids two masses of pollen are well attached to one another, but in other orchids there are two halves (with two separate viscidia) each of which is sometimes referred to as a pollinium. |
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