在俄罗斯远东地区首次记录的蒲公英(Asteraceae, Crepidinae)的有性生殖

IF 0.4 Q4 PLANT SCIENCES

Turczaninowia Pub Date : 2022-06-30 DOI:10.14258/turczaninowia.25.2.15

J. Kirschner, Нина Юрьевна Степанова, Мария Борисовна Носова, J. Štěpánek

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引用次数: 0

摘要

蒲公英属的繁殖方式差别很大。特别是，性的范围和分布是评价该复杂属的变异和分类结论的决定性标准。Taraxacum sect. Borealia广泛分布于俄罗斯亚洲部分的北极和亚北极地区，但已知在那里没有有性生殖，不像在远东大陆有许多有性生殖物种的t.a sect. Arctic。对蒲公英(Taraxacum kolymense Khokhryakov)的植物标本室资料进行了详细的分析，利用花粉大小分析和瘦果组检验，揭示了蒲公英的性别特征。从丰富的7个植物标本馆标本中选择了一种选择型，并编制了一份新的统一描述。

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Sexual reproduction in Taraxacum sect. Borealia (Asteraceae, Crepidinae) first documented in the Russian Far East

Modes of reproduction vary considerably in the genus Taraxacum. In particular, the extent and distribution of sexuality are decisive criteria for the evaluation of variation and the taxonomic conclusions in this complicated genus. Taraxacum sect. Borealia is widespread in the Arctic and Subarctic regions of the Asiatic part of Russia, but sexual reproduction has not been known to occur there, unlike T. sect. Arctica with a number of sexually reproducing species in the continental Far East. A detailed analysis of the herbarium material of Taraxacum kolymense Khokhryakov, using pollen size analysis and achene set examination, revealed sexuality in this distinctive member of T. sect. Borealia. The lectotype is selected for T. kolymensefrom a rich type gathering consisting of seven herbarium specimens, and a new consolidated description was compiled.

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来源期刊

Turczaninowia PLANT SCIENCES-

CiteScore

1.00

自引率

60.00%

发文量

审稿时长

12 weeks

期刊介绍： Subject-themed field of “Turczaninowia” is systematics and phylogeny of plants, study of plant diversity, florogenesis, anatomy and morphology of plants. The journal “Turczaninowia” has the following sections: Systematic reviews and new taxa; Floristic findings; Phylogenetics and chromosome numbers; History of flora; Criticism and Bibliography; Research methods; Geobotany and vegetation; Biotechnology; Anatomy and morphology.