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《Journal of Tropical and Subtropical Botany》 2010-03
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Two New Species of Rhododendron(Ericaceae) from Guizhou,China

CHEN Xiang1,2,3,HUANG Jia-yong4,XIE Hua3,CHEN Xun1,5 (1.South China Botanical Garden,Chinese Academy of Sciences,Guangzhou 510650,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China;3.Institute of Biology,Guizhou Academy of Sciences,Guiyang 550009,China;4.Research Division,Management Committee for Baili Rhododendron Scenic Spot of Guizhou,Qianxi 551500,China;5.Guizhou Academy of Sciences,Guiyang 550001,China)  
Two new species,Rhododendron eriobotryoides Xiang Chen Jia Y.Huang and R.jinboense Xiang Chen X.Chen(Ericaceae),from Guizhou Province,China are described and illustrated.Rhododendron eriobotryoides is close to R.denudatum from which it differs by having thinner and sparser flocculence on the leaf blade abaxial surface,puberulent filaments,and a glandular style.Rhododendron jinboense differs from the most morphologically similar species R.brevinerve by the former's oblong-elliptic and U-shaped leaf blades,a more floriferous inflorescence,a longer corolla,puberulent filaments,and a densely tomentose ovary.Both of the new species are Critically endangered,(CR),based on the IUCN Red List Categories and Criteria,therefore,careful protection is highly desired.
【Fund】: Supported by the Agriculural Technology Achievement Transfer Project of the State Ministry of Science and Technology(GrantNo.2007GB2F200289);; Important Special Project of Guizhou Provincial Department of Science and Technology(Grant No.2007-6005;2007-6019-5);; Selected project of Guizhou Provincial Department of Human Resources(Grant No.2004-04)
【CateGory Index】: Q949.772.3
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