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墨兰的解剖学研究
引用本文:李爱民,叶秀麟,陈功锡,陈泽濂.墨兰的解剖学研究[J].热带亚热带植物学报,2002,10(4):295-300.
作者姓名:李爱民  叶秀麟  陈功锡  陈泽濂
作者单位:1. 怀化学院生物系,湖南怀化,418008;华南农业大学生命科学学院,广东广州,510642
2. 中国科学院华南植物研究所,广东广州,510650
3. 吉首大学生态研究所,湖南吉首,416000
基金项目:中国科学院院长基金(767),广东省科技计划项目(C20304)
摘    要:运用石蜡切片法和扫描电镜技术,对墨兰营养器官和生殖器官进行了研究。结果表明墨兰叶片表面具较厚的角质层。气孔多为四轮列型,分布在下表皮,叶肉没有海绵组织和栅栏组织的分化,但叶尖部和叶中部中脉附近的叶肉细胞常伸长,类似栅栏组织细胞,平行脉,外韧型维管束,在假鳞茎中,维管束散生在基本组织中,根具根被,皮层和维管柱三部分,花被各部分基本结构均相似,唇瓣和合蕊柱的表皮为腺表皮,具花柱道,三心皮雌蕊,一室,侧膜胎座,四合花粉,表面无纹饰,蒴果。

关 键 词:墨兰  解剖学  营养器官  生殖器官  兰花
文章编号:1005-3395(2002)04-0295-06
修稿时间:2001年12月26

Anatomy of Cymbidium sinense(Andr.)Willd.
LI Ai-min,YE Xiu-lin,CHEN Gong-xi,CHEN Ze-lian.Anatomy of Cymbidium sinense(Andr.)Willd.[J].Journal of Tropical and Subtropical Botany,2002,10(4):295-300.
Authors:LI Ai-min  YE Xiu-lin  CHEN Gong-xi  CHEN Ze-lian
Abstract:The vegetative and propagative organs of Cymbidium sinense were studied by paraffin method and observed under scanning elect ron microscope. The results show that leaf surfaces of Cymbidium sin ense are covered with cuticle. The stomata with tetracyclic type are found t o distribute in the abaxial epidermis. The mesophyll is not differentiated into spongy and palisade tissues, but mesophyll near midrib in tip and middle parts o f leaf is often lengthened to appear as palisade-liked tissue. Vascular bundles of leaf with parallel venation are collateral bundles. Vascular boundles in pseu dobulb are scattered in ground tissue. In cross section view, from outer to inne r part, root includes velamen, cortex, and vascular cylinder. Basic structure of each part of perianth is similar to each other and is composed of epidermis, gr ound tissue and vascule bundle. Epidermis of lip and column are glandular epider mis, with a stylar canal in column. Tricarpous pistil has one-locular ovary with parietal placentation. Tetrads have no ornamentation in appearance. A capsule f ruit.
Keywords:Cymbidium sinense  Vegetative organs  Propa gative organs  Anatomy
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