Fig. 418. Alpine flora of West Tibet. Species of Sanssurea. A Saussurea tridactyla at 19,000 feet. 

 B S. Thomsoni at 17,000-18,000 feet. C S. Kunthiana at 17,000-18,000 feet. D S. wernerioides 

 at 17,000-18,000 feet. Natural size. Drawn from nature by M. Smith. Royal Herbarium, Kew. 



