OF SOUTH-EAST SIKKIM. 
353 
doubt regarding tlie validity of C, serpens. Specimens were sent to Kew for com- 
parison with the Hookeriaii type of C. himalaica, represented there by only one sheet. 
In the Calcutta Herbarium there is only a meagre fragment. C. sei-pens certainly 
does not match these type sheets. At Changu the ample material of this species aided 
me to note the following differences from the description of C. himalaica. The 
leaves are usually tripartite, and when not so, are ovate ; the racemes are very elongate, 
not short ; sepals are not persistent, are glabrous with membranous margins ; the 
fruits tend to be one-seeded. I did not find in alpine Sikkim a Cochlearia to match 
the Hookeriaii specimens of Cochlearia himalaica H. f. & T. C. scapijlora in its 
normal development is very distinct but shows considerable variety in the form of 
its leaves and in the colour of the flower ; its minute forms approximate to the dwarfs 
of the other two species. 
30, Sisymbrium Linn. 
94. Sisymbrium himalaicum H. f. & T. 
Changu, Ningbil, ]1 — 13,000 ft., Nos. 3121, 4150. 
95. Sisymbrium deitoidcum H. f. & T. 
Sherabthang, Chamnago, 12—14,000 ft., Nos. 3392, 3450, 3775. 
Petals lilac. 
31. Hutrema Hr. 
96. Eutrema pfimulaefolium H. f. & T. 
W. of Tanka La, Lachung, 10—13,000 ft., Nos. 3331,4716 Eihu I 
33. Erysimum Linn. 
97. Erysimum lougisiliquum H. f. & T. 
Ningbil, 13,000 ft., No. 4170. 
33, Tbiaspi Linn. 
98. Tlilaspi cocblearioides 11. f. & T. 
Gaoling, W. of Tanka La, 14—15,000 ft., Nos. 4004, 4220. 
Vlf.— CAPPAIUDE/E. 
34. Capparis Linn. 
99. Capparis multiflora H. f. & T. 
Below Phadonchen, 4,000 ft. 
