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A new species of Isodon (Lamiaceae) from Indian Eastern Himalaya

摘要


Isodon neorensis, a new species from Eastern Himalaya of India has been described and illustrated here based on its morphology. A weak, short lived herbaceous species was collected from Neora Valley National Park, Darjeeling, India. Inflorescence, dark red colour flower, calyx without septate-villose hairs at base, stamens glabrous at base, and not exserted filaments are some important diagnostic features besides substantial morphological differences with allied species. The identification key to Indian Eastern Himalayan species of Isodon, distribution map, photo plate, illustration is also provided.

參考文獻


Naveen, V.V.K., M.K.R. Narayanan, C.N. Sunil, M.G. Sanilkumar and E.C. Baiju. 2016. Isodon purpurescence (Lamiaceae), a new species from Western Ghats, Kerala, India. Taiwania 61(1): 13‒15.
Chen, Y.P. and C.L. Xiang. 2019. Taxonomic notes on Isodon (Lamiaceae) in China, III: resurrection of I. brachythyrsus, I. chionanthus and I. kangtingensis. Nord. J. Bot. 37(7): e02240.
Chen, Y.P., G.X. Hu and C.L. Xiang. 2014a. Isodon delavayi (Ocimeae, Nepetoideae, Lamiaceae): a new species from Yunnan province, Southern China. Phytotaxa 156(5):291–297.
Chen, Y.P., C.L. Xiang, G.X. Hu and H. Peng. 2017. Taxonomic notes on Isodon (Nepetoideae, Lamiaceae) in China I: revision of four species. Nord. J. Bot. 35(2):162–175.
Chen, Y. P., G.X. Hu, F. Zhao, H. Peng and C.L. Xiang. 2017. Taxonomic Notes on Isodon (Lamiaceae) in China, II: I. aurantiacus, a new species from Tibet, China. Ann. Bot. Fennici 54(4–6): 239–243.

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