Elementary botany . elementarybotany00atki Year: 1898 Fig. 30 Fig. 306. Mature embryo sac (young pro- Section through nucellus and upper part of embryo thallium) of lilium. ///, micropylar sac of cotton at time of entrance of tube. E, end; .V, synergids ; E egg; Pn> egg: S, synergids: Pt pollen tube with sperm cell in polar nuclei; Ant, antipodals, the end. (Duggar.) (Easter liiyj

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