kev npaj, txo cov nplooj fertile (cov microsporophylls). Ntawm qhov chaw qis ntawm microsporophylls yog yug elongated microsporangia; ob microsporangia ib microsporophyll muaj ntau, tab sis qee cov genera muaj ntau dua.
Muaj pes tsawg microsporangia nyob ntawm kaum?
Hint: Ib qho anther yog cov qauv tetragonal uas muaj plaub microsporangia pom ntawm cov ces kaum. Cov microsporangia paub tab ntxiv thiab hloov kho rau cov hnab paj ntoos.
Qhov txawv ntawm microsporangia thiab microsporophyll yog dab tsi?
Raws li lub npe qhov txawv ntawm microsporophyll thiab microsporangium. yog tias microsporophyll yog ib lub cev zoo li nplooj uas dais ib lossis ntau dua microsporangia(zoo ib yam megasporophyll) thaum microsporangium yog (botany) ib rooj plaub, tshuaj ntsiav lossis thawv uas tuav microspores.
Dab tsi sib npaug rau microsporophyll?
Txhua microsporophyll (sib npaug rau angiosperm stamen) yog ntxhib, nplooj daim duab peb sab, thiab sab qis (abaxial) muaj tus lej (700 txog 1160) ntawm microsporangia (pollen sac)).
Puas muaj pes tsawg microsporangia nyob hauv txhua qhov?
Txhua theca muaj ob microsporangia, tseem hu ua paj paj.
