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描述了贵州杜鹃花属(杜鹃花科)一新种———荔波杜鹃Rhododendron liboense Z.R.Chen&K.M.Lan。该种以花序顶生,花冠粉红色,宽钟状,子房密被白色腺毛,柱头头状而近似于凉山杜鹃R.huianum Fang,但叶片狭窄,宽1.6-2.8cm,花序轴长1-3cm,花7-9朵,花冠较大,直径约8cm,花萼短小,长仅1-2mm而不同。  相似文献   

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 Rhododendron shimenense Q. X. Liu et C. M. Zhang (Ericaceae) is described asnew from Hunan Province, China.  相似文献   

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杜鹃花为杜鹃花科杜鹃属植物,分布于北半球温带及亚热带,主产于东亚和东南亚山区,以中国西南部横断山区最为丰富:杜鹃花科在世界上约有16属1000余种,我国仅3属,却有605种,云南有306个种和变种,占全国该属种类的一半以上。毫无疑问,中国是杜鹃花的原生地,而云南又为其分布中心。  相似文献   

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描述了四川杜鹃花属一新变种——光柱长鳞杜鹃 Rhododendron longesquamatumSchneid. var. glabristylum Y. Y. Geng et Z. L. Zhao。该变种与原变种长鳞杜鹃R. longesquamatum Schneid. var. longesquamatum的主要区别是叶片和花较小,叶片及叶脉成熟后无毛或仅见零星残存毛,花萼仅有绒毛而无腺毛,花柱光滑。  相似文献   

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本文通过对国产远志属的分类系统和外部形态(特别是花部、种子和种阜的形态)及花粉粒形态   的研究,结合地理分布,首次确认国产远志为3亚属、4组(其中2新组),41种8变种。  相似文献   

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中国虎耳草属的研究   总被引:1,自引:0,他引:1  
本文提出了一个中国虎耳草属系统,确认我国有2亚属,8组,7亚组(包括1新亚组),31系(包括23新系),4亚系(新亚系)和203种(包括2新种和4新变种)。  相似文献   

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Three new species and one new subspecies of the genus Rhododendron are described from Sichuan, Guizhou and Hunan Provinces, China. They are R. oblancifolium Fang f., R. ebianense Fang f. R. guizhouense Fang f., R. ririeissp. leiboense Fang f.  相似文献   

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将我国广东、广西和四川杜鹃花属Rhododendron中5个种和2个变种处理为新异名,将石棉杜鹃R. shimianense Fang & P. S. Liu处理为黄花杜鹃R. lutescens Franch.的变型。  相似文献   

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The Astilbe Buch.-Ham.  ex D. Don was founded in  1912.  There are now 18 species throughout the world. USSR, Thailand, Indonesia, Bhutan, Nepal d Kashan- mir each has only 1 species; Korea, Philippines and USA each has 2; India 3; Japan 6; and China 7 (including 3 endemics and 1 new variety). And northeast China, north China and northwest China each has 2;  central China and southwest China  each 4; eastern  China 5. Thus the distribution centre of this genus seems  to be in the region  covering Japan and eastern, central, and southwest China.       This genus is divided into two sections: Sect. Simplicifoliae Engl.  and Sect. Astilbe. Sect. Simplicifoliae may be considered as the primitive one because it has 5 ordinary petals. This section consists of about 10 species: 5 in  China (east China 4; southwest China 3; ce- ntral China, north China and northeast China each 2; Northwest China 1), 5 in Japan, 2 in Korea, 1 in Philippines and India each. According to the distribution of this section, the author suggests that the centre of origin of this genus be in the  forested  parts  from Japonthrough east China to southwest China.  相似文献   

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