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- rapeseed pollen grain 花粉
- A microscopic fossil, as of a pollen grain or unicellular organism. 微体化石一种微小的化石，如花粉粒或单细胞有机体的化石
- The innermost wall of a spore or pollen grain. 内壁孢子或花粉粒最深处的壁
- Pollen grain trilobate in polar view. 花粉粒三裂在极面观。
- Pollen grain semiangular in polar view. 花粉粒半具角在极面观。
- A microscopic fossil,as of a pollen grain or unicellular organism. 微体化石一种微小的化石，如花粉粒或单细胞有机体的化石
- We can see spinous pollen grain in the fruit by microscope. 显微观察可见，果中的刺球状花粉粒最为显著。
- The contents of the pollen grain represent the male gametophyte. 花粉粒为雄性配子体。
- Both the pollen grains and the gynoecia are active. 花粉粒和雌蕊都具有活力。
- The pollen grains still to keep tetrahedral form. 小孢子四分体为四面体型。
- Pollen grains triporate, exine reticulate. 花粉粒三孔，外壁网状。
- Pollen grains prolate, semicircular in polar view. 花粉粒长球形，半圆的在极面观。
- Pollen grains prolate, smooth, not reticulate. 花粉粒长球形，平滑，不为网状。
- The outer wall (extine) of the pollen grain is often diagnostic (see pollen) and very resistant to decay. 花粉粒外壁（花粉壁）通常为特异性的并很难腐烂。
- Discussion on the origination of Chinese tree-peony cultivars according to pollen grain morphology. 根据花粉形态探讨中国栽培牡丹的起源。
- The probability of any air-borne pollen grain impacting a female strobilus is in any case very small. 任何在空气中飘浮的花粉粒粘着于雌球花的几率，在任何情况下都是很小的。
- It had snow-melting-like veins on the surface of pollen grain with several hollows. 萌发孔沟多为3对（顶分体3条，侧分体各对应1条），以四面体几何中轴为中心，中心对称分布于四面体的3个侧面。
- Stamens included size of anther，pollen number of p er anther，size，shape and viability of pollen grain. 雄蕊检测包括花药大小，单花药花粉量，花粉粒形状、大小和生活力。
- Germination The first outward sign of trowth of a reproductive body, such as a spore or pollen grain. 萌芽（萌发）：是繁殖体长出孢子，花粉粒等的过程。
- The pollen grains were spherical or oblate, with irregul... 结论:上述显微特征可作为菱叶红景天的鉴别依据。
