摘要
花叶开唇兰俗称金线莲(Anoectochilus roxburghii(Wall.)Lind.)为多年生陆生兰。具根状茎。根、茎中都有内皮层,上有凯氏带加厚。根中木质部5—9原型。茎中维管束12—18束,排成2—3轮。叶肉分化为栅栏组织和海绵组织,前者的叶绿体大而浓绿,后者的叶绿体小而色浅。气孔分布在下表皮,副卫细胞的排列无一定规律。叶上表皮细胞常呈乳突状。根、茎、叶中都有杆状结晶束,并有多糖颗粒。根皮层薄壁细胞中有的具共生的真菌菌丝。
Anoectochilus roxburghii (Wall.) Lindle. is a perennial terrestrial orchid, which has rhizome. There are endodermises in its stem and root. The Casparian strip thickening occurs on the endodermis. The number of protoxylem groups in root is five to nine. In stem, 12-18 vascular bundles are arranged in 2-3 circles. Palisade tissue and spongy tissue can be distinguished in the mesophyll. In the former, the chloroplasts are bigger and dark green; in the latter, the chloroplasts are smaller and pale green. The stomata are scattered on the lower epidermis. The arrangement of subsidiary cells is irregular. The cells of upper epidermis are often papillae. In the parenchyma cells of root, stem and leaf, the raphides exist in clusters accompanied by grains of polysaccharides. In some of the parenchyma cells in cortex of root, there are clusters of symbiotic fungal hyphae.
出处
《云南植物研究》
CSCD
1992年第1期45-48,共4页
Acta Botanica Yunnanica
关键词
花叶开唇兰
营养体
结构
Anoectochilus roxburghii
Nutritive body
Structure
