| 中国车前属种子形态及其分类学意义 |
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| 引用本文： | 刘君哲,张清敏,郭淑华,周杏弟.中国车前属种子形态及其分类学意义[J].中国科学院研究生院学报,1992,30(2):118-125. |
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| 作者姓名： | 刘君哲 张清敏 郭淑华 周杏弟 |
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| 摘 要： | 本文研究了中国车前科Plantaginaceae车前属plantago2亚属8组17种及1变种植物的种子，
在扫描电子显微镜下的形态及亚显微结构(种皮纹饰)．结果表明种子形态有四个类型：1，多角形类型；2．舟形类型；3．卵形类型；4．矩圆形类型。各个种的种子形态和种皮纹饰有着相当明显的区别。新种plantago densiflorus的建立应用了种子形态和种皮纹饰这一特征。车前种子形态分类与pilger用植物其他形态特征建立的车前属分类系统是一致的，因此，笔者支持Pilger的车前属分类系统。
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| 关 键 词： | 车前属 种子形态 种皮纹饰 |
Seed Morphology of Plantago in China and Its Taxonomic Significance |
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| Liu Jun-Zhe,Zhang Qing-Min,Guo Shu-Hua,Zhou Xing-Di.Seed Morphology of Plantago in China and Its Taxonomic Significance[J].Journal of the Graduate School of the Chinese Academy of Sciences,1992,30(2):118-125. |
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| Authors: | Liu Jun-Zhe Zhang Qing-Min Guo Shu-Hua Zhou Xing-Di |
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| Abstract: | Studied in this work was seed morphology of the genus Plantago (2 subgenera, 8
sections, 17 species and １ variety )in China. The sculpture was observed under scanning elec-
tion microscope. Four forms of seed morphology are recognized as follows: (1)Multi-angu-
lar type: seeds are variously angulate, yellow-brown or black, 6-30 in a fruit; seed-coat
sculpture ranges from reticulate to papillate. It occurs in Subgen. Plantago Sect. Polyneuron:
P. scheideri, P. denstflorus, P. major, P. hostifolia, P. asiatica, P. erosa and P. centralis. (2)
Navicular type: seeds are navicular, yellow, brown to black, 2 in a fruit; seed-coat sculpture
is reticulate. It was found in Subgen. Plantago Sect. Novorbis: P. virginica; Sect.
Arnoglossum: P. lanceolata; Sect. Leucopsyllium: P. minuta, P. lessingii and P. aristata and
Subgen. Psyllium Sect. Psyllium: P. indica. (3)Ovoid type: seeds are long-ovoid,
yellow-brown, black and lustrous. Seed-coat sculpture scali-ratiform. P. maxima in Subgen.
Plantago Sect. Lamprosantha belongs to this type. (4)Recti-circular type: seeds are recti-cir-
cular, yellow-brown, black, 1-2 or 4-5 in a fruit; seed-coat sculpture is reticulate and
papillate. It was found in P. maritima var. salsa of Subgen. Plantago Sect. Coronopus and P.
depressa, P. camtschatica and P. arachnoidea of Sect. Mesembrynia. The seed morphology
and seed-coat sculture exhibit specific characters, by which some of confused species can be
clarified and a new species, P. densiflorus J. Z. Liu. is established.
The present author’s seed morphology classification is in accordance with Pilger’s systemof the genus, which was established using other features. |
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| Keywords: | Plantago Seed morphology Seed-coat Sculpture |
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