| 菰属系统与演化研究——花粉形态 |
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| 引用本文： | 陈守良,舒璞.菰属系统与演化研究——花粉形态[J].中国科学院研究生院学报,1991,29(1):52-59. |
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| 作者姓名： | 陈守良 舒璞 |
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| 摘 要： | 本文首次报道了菰属Zizania L. 及其有关属，共7属，13种，3变种，1变型的花粉形
态。通过光学显微镜和扫描电镜，对其花粉的形状、外壁的层次及纹饰等进行了观察。经过研
究，笔者认为： 菰属应置于禾本科稻族内；菰属在稻族内的演化及菰属内的种间演化均存在
平行演化的现象；菰属在全世界有4种2亚种。这些结论大都吻合笔者对其它形态特征的研
究结果。
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| 关 键 词： | 菰属 花粉形态 系统演化 |
A Systematic and Evolutionary Study of Zizania L. (Gramineae) Pollen Morphology |
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| Chen Shou-Liang,Su Pu.A Systematic and Evolutionary Study of Zizania L. (Gramineae) Pollen Morphology[J].Journal of the Graduate School of the Chinese Academy of Sciences,1991,29(1):52-59. |
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| Authors: | Chen Shou-Liang Su Pu |
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| Abstract: | This paper deals with pollen morphology of Zizania L. and its relatives. A
total of 7 genera, 13 species, 3 varieties and 1 form were examined under light microscope
and scanning electron microscope. The results are as follows:
1. The genus Zizania belongs to tribe Oryzeae as shown by pollen characters, i, e. subs-
pheroidal to ovoid in shape, monoporate, exine two-layered, with minute granules under LM.
2. The evolutionary trend of these taxa seems to be from minute granules free (Zizania
latifolia, Z. texana, Zizaniopsis milicea and Oryza sativa) to minute granules aggregated in a
group of 2-4 (many) (Zizania aquatica, Z. palustris, Leersia hexandra etc.). The genus Zi-
zania may be derived from the ancient stock which has also given rise to the genus Oryza, and
therefore parallel evolution may have taken place in Oryzeae, i. e. from perennial species to
annual species in Zizania in one line, and from the genus Oryza to Leersia, Chikusichloa etc.
in the other.
3. The characters of pollen morphology under LM and SEM support the division of the
genus, Zizania into 4 species, 2 subspecies in the world, i. e. Z. latifolia (Griseb.) Turcz. ex
Stapf, Z. texana Hitchc., Z. aquatica subsp. aquatica, Z. aquatica subsp. brevis (Fassett) S. L.Chen, Z. palustris subsp. palustris, and Z. palustris subsp. interior (Fassett) S. L. Chen. |
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| Keywords: | Zizania L Pollen morphology Systematic evolution |
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