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The paper gives an account of the vegetation as observed by the author during a recent plant collection tour in the Chandra and Bhaga river valleys of Lahul (Kangra District, Panjab) beyond the Rohtang Pass. Plants were collected in the altitude range 3000 to 4000 metres and the paper includes a list of plants collected with brief descriptions, altitude of occurrences and uses, if any.
M. A. Rau (Fri,) studied this question.
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