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作 者 ：吉成均  胡正海

期 刊 ：西北植物学报 1995年 6期

关键词：黄杨；花蜜腺；形态；结构；

Keywords:Buxus microphylla, floral nectary, morphology structure,

摘 要 ：黄杨花单性，雌雄同株，雄花花蜜腺４枚，乳头状，着生于退化雌蕊子房顶部；雌花花蜜腺３枚，短柱状，位于３枚花柱之间。雌、雄花蜜腺均由分泌表皮、产蜜组织和维管束构成，在发育过程中产蜜组织细胞的液泡都发生有规律的变化。雌花蜜腺大，属非淀粉型蜜腺，泌蜜量大，蜜汁含糖分多，维管束中仅含韧皮部；雄花蜜腺小，属淀粉型蜜腺，泌蜜量小．蜜汁含糖量小，维管束由木质部和韧皮部构成。

Abstract:The male flowers have four papillary-sbapednectaries which occur at the top of ovary of re-duced pistil.The female flower have three cylinder-shaped nectaries which are present among thebases of three styles,Both of nectaries consists of epidermis,nectari

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