14 DownrE—CHINESE SPECIES OF TSUGA. 
attachment of cones could be observed the combination of 
characters held. Of the described species* T. yunnanensis comes 
under the first group (i.e., leaf apex entire) and T. chinensts 
under the second. As the cone stalk of the plants of the Chin- 
ensis group is in all cases very short, the criterion used was 
the condition of the bud scales at the base of the cone. In stalked 
forms the scales retain the erect condition of an opening bud 
above which the stalk may or may not appear, while in the 
sessile forms the bud scales are flattened out against the base of 
the cone. 
Yunnanensis Group. (i.e. leaf apex entire, cones sessile). Of 
the four collections thus placed in the Yunnanensis group, three, 
Ward 1666, Wilson 2098, and 2099, I believe to be the same as T. 
yunnanensis. The remaining one, Forrest 6747, differs so 
markedly in the type of cone that I believe it to be a distinct 
species. The cone scales of T. yunnanensis are finely striate, 
thin and fibrous, whereas those of Forrest 6747 are smooth, thick 
and woody in texture. 
Chinensis Group. (i.e. leaf apex emarginate, cones stipitate). 
In this group one specimen, Wilson 2096, stood out very dis- 
tinctly in the character of the mature cone. The cone scales 
thick, woody, polished and with truncate apices, open wide at 
maturity, spreading at anangle little less than go° to theaxis. All 
other cones in this group and in the previous one, have the scales 
erecto-patent at maturit 
Although the serration on the leaf margins was variable, one 
or two specimens in this group were found with persistently 
entire margins. To this sub-division belong Henry 7156, Wilson 
2100 and 2097, all of which I believe to be the same as 
chinensis, and also Forrest 17,169. The latter has a long narrow 
needle often 25 mm. in length, in contrast to the short broad 
needle, rarely exceeding 18 mm. of T. chinensis. ‘This together 
with differences in the cone scale and the colour and indumentum 
of the twig led me to believe that it was a distinct species. 
Leaves of Ward 257 and Maire 203 were generally serrulate 
on the margin, but there was a marked difference in cone outline 
and in the size and shape of the cone scale. In Ward 257 the 
cone is obovate, the cone scales few in number (about 25) measure 
14 x 13 mm. while in Maire 203 the oblong-ovate cone is com- 
posed of a larger number of smaller scales (about 35) 10 x 7 mm. 
and therefore I believe them to be distinct species. 
The young twigs of all the Chinese Tsugas I haveexamined are 
more or less pubescent, the indumentum occasionally confined to 
the grooves between the pulvini, more often scattered in the 
grooves and on the lower part of the pulvini. The leaves, flat 
* Excluding 7. Mairez which, ex descr., is probably incorrectly referred to Tsuga. 
