(Q101104414)
Statements
EMBRYOLOGICAL STUDY ON ORCHIDANTHA CHINENSIS (LOWIACEAE) (English)
兰花蕉的胚胎学研究 (Chinese)
ORCHIDANTHA CHINENSIS
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WEN Ying-qun, LIAO Jing-Ping/温颖群
Embryological features of threatened Orchidamha chinersis were studied with the help of a Ileitz microscope．Living specimens were collected from the South China Botanic Garden at Guangzhou．Special emphasis is given to the 0vule development,… (English)
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兰花蕉 (Orchidantha chinensis T. L. Wu)的胚珠倒生, 具厚珠心和双珠被.内外珠被形成珠孔.假种皮从外珠被的顶端发生.造孢时期,胚珠具有一层周缘细胞.造孢细胞发育成大孢子母细胞,大孢子母细胞减数分裂形成大孢子的线形四分体,少数三分体.合点大孢子具功能.胚囊发育属蓼型.成熟胚囊的合点端狭长.胚珠具有珠心冠原和承珠盘.反足细胞寿命长.胚珠维管束属于合点后多维管束类型.胚乳发育属核型.种子脱落时,胚尚未分化出胚芽和胚根.. (Chinese)
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