卵质收回时，在卵表面卵柄处可见明显的树枝状结构。
The evident arborization structure was observed at the egg handle on egg surface when the egg protoplasm drew back.
黏液腺在胚胎附着过程中形成卵柄和外层卵膜，胚胎是依靠卵柄或卵索附着于腹肢的刚毛上，进而完成胚胎发育过程。
Embryo attachment was affected by the differentiation of egg membrane. Egg stalk and outer egg membrane were formed from mucus during development.
孢子体：为苔藓和地钱的孢子体世代具有。由受精卵发育而来，包括基足、柄和孢蒴。孢子体是寄生在配子体上的。
Sporogonium the sporophyte generation in mosses and liverworts. it develops from the zygote and comprises the foot, seta, and capsule. the sporogonium is parasitic on the gametophyte generation.
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