177 
specimens, becoming blnnt and rounded in adult trees, with the 
stomatal lines faintly marked beneath. The young wood is hairy, 
which distinguishes it from 7. Sieboldii; and from 8. diversifolia, 
which also has hairy young wood, it differs in its longer, larger 
leaves. The cone is about 1 inch long and the same in width, 
sessile. 
IV. A New Oak. 
Quercus pontica, C. Koch [Cupuliferae]. 
This striking oak has long been a desideratum for the Kew 
collection. It is a native of north eastern Armenia, whence it 
appears to have first been introduced to Germany by Dr. Dieck, 
of the Zéschen Nursery, about twenty-five years ago. It is 
however, extremely rare, and it was not until I saw it in 
Messrs. Spiith’s nursery at Berlin, in 1908, ake it became possible 
to obtain it, for it is not offered in catalogues. There is also a 
good specimen in the Botanic Garden of Dresden. In the Kew 
Herbarium it is only represented b he sheet containing a 
flowering twig and one with three fully. g - grown 
s oak appears to be a small tes, arenes a shrub; its 
leaves are oval or slightly obovate, and up to 8 inches in length and 
4 inches in width, and are distinguished by reason of fifteen to 
twenty-five prominent ribs Bek ts paretel to each other from the 
mid-rib at an angle of about 40 deg. to the margin, where each one 
terminates in an incurved lanceolate tooth + inch long. The upper 
surface is a bright, rather pale green; the lower one glaucous. 
Petiole about } inch long. I have not seen the acorn either living 
or preserved, but it is described as being half enclosed in a cup 
with ove lanceolate scales. 
nities of the species, appear to be with Q. castaneaefolia, 
but it is nome comparable with Q. Mirbechii, and Q. conferta. In 
the beauty of its foliage it is superior to all three. 
EXPLANATION OF PLATES. 
Larix Potaninii, 70 feet x 6 feet; west of Tatienlu; altitude 
0,800 ft. 
Meliosma Veitchiorum, 45 feet x 10 feet, with votive board ; 
Changyang Hsien ; altitude 4800 ft. 
XXVI._ENTANDROPHRAGMA, LEIOPTYX AND 
PSEUDOCEDRELA. 
T. A. SPRAGUE. 
The genus ect sige ered was described in 1894 
by Casimir De Candolle (Bull. Herb. Boiss. vol. ii. p. 582, t. 21) 
who based it on Swietenia caeate is, Welw., and distinguished it 
from Swietenia by the presence of a stipitiform disk, to which the 
lower part of the staminal tube was connected by means of ten 
longitudinal membranous partitions. 
