广西翠柏属(柏科)植物小志

农东新<sup>1; 2</sup>; 吴望辉<sup>1; 2</sup>; 蒋日红<sup>1; 2</sup>; 黄俞淞<sup>1</sup>; 许为斌<sup>1*</sup>

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广西翠柏属(柏科)植物小志
农东新^1,2, 吴望辉^1,2, 蒋日红^1,2, 黄俞淞¹, 许为斌^1*
1. 广西壮族自治区中国科学院广西植物研究所, 广西桂林 541006;2.广西师范大学生命科学学院, 广西桂林 541004

摘要:

订正了广西翠柏属(柏科)植物,确定了广西分布有2种,即翠柏和岩生翠柏,其中分布于广西石灰岩山顶的翠柏属植物为岩生翠柏,该种与翠柏不同在于鳞叶先端钝状或宽钝状,球果宽卵形,具极短的柄,种鳞4,可育种鳞先端弯曲、圆形,表面粗糙,无尖头。最后根据IUCN的评估标准对广西翠柏属植物进行了濒危等级的评估,并提供了两种植物的地理分布信息和野外生态照片。

关键词: 岩生翠柏翠柏柏科石灰岩植物区系广西

DOI：10.3969/j.issn.1000-3142.2011.03.004

分类号:Q949

Fund project:

Notes on Calocedrus(Cupressaceae)in Guangxi, China

NONG Dong-Xin^1,2, WU Wang-Hui^1,2, JIANG Ri-Hong^1,2, HUANG Yu-Song¹, XU Wei-Bin^1*

1. Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences, Guilin 541006, China;2.College of Life Sciences, Guangxi Normal University, Guilin 541004, China

Abstract:

The genus Calocedrus(Cupressaceae)in Guangxi is revised. There are two species recorded in Guangxi,namely C.macrolepis and C.rupestris. C.rupestris is found from limestone ridge,it differs from C.macrolepis in obtuse to broadly-obtuse leaf apex,broadly-ovate seed cones with very short stalk,seed cones with 4 scales,fertile seed scales with incurved rounded apex,having rough surface without any mucro. According to IUCN categories and criteria,two species of Calocedrus in Guangxi are assessed. Map of distribution of Calocedrus in Guangxi is provided,and habitat photos of Calocedrus are provided in this paper.

Key words: Calocedrus rupestris Calocedrus macrolepis Cupressaceae limestone flora Guangxi