In most flowers belonging to other orders the stigma secretes a little viscid matter.

在大多数属于其他目的花中， 头会分泌点性物质。

The passage is narrow, and is roofed over by the column, so that a bee, in forcing its way out, first rubs its back against the viscid stigma and then against the viscid glands of the pollen-masses.

通道很窄，盖住， 所以蜜蜂在强行出路时， 首先用背部摩擦性头， 然后摩擦花粉团的性腺体。

With respect to the second chief peculiarity, namely, the little mass of viscid matter attached to the end of the caudicle, a long series of gradations can be specified, each of plain service to the plant.

关于第二个主要特征， 即附着在茎端的少量性物质，可以长串等级， 每个等级都对植物有明显的作用。

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， 而这又是小团极其稠的物质。

When an insect visits a flower of this kind, it rubs off some of the viscid matter, and thus at the same time drags away some of the pollen-grains.

当只昆虫访问这种花时， 它会擦掉些性物质， 从而同时带走些花粉粒。

Now, in certain orchids similar viscid matter is secreted, but in much larger quantities by one alone of the three stigmas; and this stigma, perhaps in consequence of the copious secretion, is rendered sterile.

现在， 在某些兰花中分泌出类似的性物质， 但数量要多得多， 仅由三个头中的个分泌；这种耻辱， 也许是由于大量分泌物的结果， 变得不育了。