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单词 pollen grain
释义

> as lemmas

pollen grain
pollen grain n. Botany a microspore of a seed plant, consisting of one or more cells surrounded by a two-layered wall, and containing (in life) a developing male gamete.
ΘΚΠ
the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [noun] > parts of > stamen or pistil > pollen and related parts
sandarac1623
globulet1671
powder1672
bread1682
farina1721
pollen1723
father-dust1728
rough wax1744
yellow rain1755
dust1776
fovilla1793
anther dust1797
pollen mass1828
pollen tube1830
intextine1835
pollen grain1835
pollen granule1835
exine1839
exintine1839
intine1839
pollinium1849
sulphur shower1854
pollinic mass1857
pollen chamber1863
smoke1868
pollen sac1872
pollinarium1881
sulphur rain1882
pollinic chamber1885
perine1895
pollen content1926
sculpturing1943
monad1947
nexine1948
sexine1948
1835 J. S. Henslow Princ. Bot. §262 The inner membrane of the pollen grain.
1914 F. E. Fritsch & E. J. Salisbury Introd. Study Plants xix. 241 In a more mature anther the pollen grains..can be recognised as a powdery mass within each pollen-sac.
1993 Sci. Amer. Oct. 52/3 Koopman's equation applies not only to ships but also to pollen grains in the hunt for stigmas.
extracted from pollenn.
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as lemmas
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更新时间:2024/11/11 5:01:27