槭属翅果种内形态变异性及对其化石鉴定的意义

doi:10.7677/ynzwyj201313073

Plant Diversity ›› 2013, Vol. 35 ›› Issue (3): 295-302.DOI: 10.7677/ynzwyj201313073

槭属翅果种内形态变异性及对其化石鉴定的意义

黄永江1, 朱海1、3, 陈文允1, 周浙昆1、2

1 中国科学院昆明植物研究所生物多样性与生物地理重点实验室，云南昆明650201；2 中国科学院西双版纳
热带植物园热带森林生态学重点实验室，云南勐腊666303；3 中国科学院大学，北京100049

收稿日期:2013-03-31 出版日期:2013-05-25 发布日期:2013-04-22
基金资助:
科技部科技基础性工作专项重点项目 (2007FY110100)；国家自然科学基金 (41030112)；中国科学院南京地质古生物研究所现代古生物学和地层学国家重点实验室开放课题 (123107)

Intraspecific Variation in Samara Morphology of Acer and Its Implication in Fossil Identification

HUANG Yong-Jiang-1, ZHU Hai-1、3, CHEN Wen-Yun-1, ZHOU Zhe-Kun-1、2

1 Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China;
2 Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences,
Mengla 666303, China; 3 University of Chinese Academy of Sciences, Beijing 100049, China

Received:2013-03-31 Online:2013-05-25 Published:2013-04-22
Supported by:
科技部科技基础性工作专项重点项目 (2007FY110100)；国家自然科学基金 (41030112)；中国科学院南京地质古生物研究所现代古生物学和地层学国家重点实验室开放课题 (123107)

摘要/Abstract

摘要：

选取我国西南地区槭属（槭树科）的8个现生种，通过观察和测量馆藏标本的翅果形态，对比同一个种的翅果在不同地区的形态差异性，并通过主成分分析（PCO）检测翅果在种内的形态变异性，发现槭属的翅果形态具有明显的地区间差异性，这种差异性主要表现在总体形状和大小上，这可能与地区间不同的气候环境特征有关。通过对槭属翅果种内形态变异性和多样性的深入研究，为槭属翅果化石的属下鉴定提供一定依据，指出槭属翅果化石的属下鉴定应该考虑翅果形态种内变异性的特征，具有形态多样性的该属翅果化石可能属于一个种或更少的种。

关键词: 槭树科, 槭属, 翅果, 化石, 种内形态变异性

Abstract:

Samara morphology of 8 species of Acer (Aceraceae), which occur in southwestern China, was observed from the herbarium specimens. Morphological comparisons and examinations based on PCO analysis display considerable intraspecific variations in samara morphology, mainly in general shape and fruit size. Samaras belonging to the same species but collected from different places have morphological disparities, which might be associated with different climatic and environmental conditions. This represents the first detailed investigation of the intraspecific variation in Acer samara morphology, and throws light on the identification of fossil samaras of Acer at the specific level. Interaspecific variation in samara morphology should be taken into consider in taxonomical studies of samara fossils of Acer. Fossils with morphological diversity might belong to only one or fewer fossil taxa.

Key words: Aceraceae, Acer, Samara, Fossil, Intraspecific morphological variation

中图分类号:

Q 944

黄永江1, 朱海1、3, 陈文允1, 周浙昆1、2. 槭属翅果种内形态变异性及对其化石鉴定的意义[J]. Plant Diversity, 2013, 35(3): 295-302.

HUANG Yong-Jiang-, ZHU Hai-, CHEN Wen-Yun-, ZHOU Zhe-Kun. Intraspecific Variation in Samara Morphology of Acer and Its Implication in Fossil Identification[J]. Plant Diversity, 2013, 35(3): 295-302.

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槭属翅果种内形态变异性及对其化石鉴定的意义

Intraspecific Variation in Samara Morphology of Acer and Its Implication in Fossil Identification

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