146 MR. W. B. HEMSLEY ON THE 
the Graminee thirteen, the Leguminose twelve, the Crucifere- 
eleven, and the Ranunculacex eight. Among tbe plants collected 
at altitudes of 18,000 ft. and upwards are :—Capsella Thomsoni, 
Thermopsis inflata, Saussurea tridactyla, Tretocarya pratensis, 
Microula Benthami, and Poaalpina. The Saussurea is recorded 
from 19,000 ft., perhaps the greatest elevation at which any 
flowering plant was ever collected. 
‘Many other points of interest suggest themselves, but it 
would be premature to attempt to indicate them before the 
collection bas been more thoroughly worked out.” 
It may be added that no important modification of the fore- 
going summary results from the more critical determination of 
all the species, except that Tretocarya pratensis and Microula 
Benthami are synonymous, and the same as M. tibetica. Dr. 
Thorold’s valuable notes accompanying the specimens collected 
by him are incorporated in the general account of the Vegetation, 
which follows the Enumeration. 
Dr. Thorold, so far as we are aware, was the only one of our 
travellers who collected specimens and data of the Zoology of 
Tibet. The following is a list of the Butterflies, collected or 
observed, extracted from the Official Report, in Bower’s ‘ Diary 
of a Journey across Tibet’ (Calcutta, 1893), p. 115 :— 
“ Name. Date. Alt. Lat. Long. 
Ocneis pumilus, Feld. ...... Aug. 9,1891. 16,000  33°25' = 849 25" 
Vanessa ladakensis, Moore... Sept.10, ,, 15,500 31°29 89° 10’ 
Synchloé Butleri, Moore...... June 28, ,, 17,000 Ladak 
Pieris chloridice, Hiibn....... June 30, _,, 16,500 ” 
Parnassius acco, Qray......... July 10, ,, 17,600 34925’ = 80° 35’ 
” Jacquemontii,Boisd. July 9, , 34° 32’ 80° 25° 
Colias Fieldit, Mén. ......... Feb. 15, 1892. 8,500 
“The above collection includes every butterfly seen by me in 
Tibet, as far asl am aware. The originals have been sent to the 
Curator, Indian Museum, Calcutta. 
“All these species are also found at high altitudes on the north- 
west frontiers of Tibet and China, with the exception of Pieris 
chloridice, which ranges from Europe to the North-west Hima- 
layas, and Parnassius acco, which so far has only been met with 
on the Karakorum range and the frontier of Ladak and Tibet. 
As, with the exceptions just noted, they are found at both the 
east and west frontiers of Tibet, it is justifiable to infer that these 
species inhabit the whole of the Tibetan central plateau.” 
