08 
(7, 8, and 9) Done in 1934 for the first time. but in the case 
of (8), none of the hybrid nuts germinated. It seems best to 
make as many crosses as possible between the Chinese and Ameri- 
can, because of the former’s disease-resistant quality. 
(10) Done in 1934. A desirable cross because of the disease- 
resistance of the Japanese. 
(11 and 12) In December, 1931, Dr. G. M. Reed of this Gar- 
den received a quantity of Japanese chestnuts from Mr, S. Tanaka 
of Shizuoka, Japan. About half of these nuts were given to us. 
They germinated well and were set out in the spring of 1932 on 
our Hamden plantations. [Last June the first of the lot bloomed. 
The nut in this case came from Ohara in the vicinity of Kyoto, 
and belongs to the class of what the Japanese term r 
nuts of medium size. [ crossed it with pollen from one of our 
smith hybrids of 1931 (174B’ 31) and also with pollen from S8.* 
As a result of the first crossing we got one nut, and of the 
verhaps doubtful whether 
Chugurt” « 
“ee 
second, 2 burs yielding 3 fine nuts. It is 
we should call the latter combination new, for in 1934 we success- 
fully crossed S8 with the Japanese Forest Type chestnut. The 
latter, however, is a distinct variety, and in any case this is a re- 
ciprocal cross (i.e. using the Japanese, instead of S8, as the fe- 
male) and is therefore entirely new. This Kyoto chestnut tree 
was 4 feet 11 inches tall on October 1, 1935. 
(13) C. Seguinii, the Chinese Chinquapin, although a low, 
shrubby little plant (in our strain), blooms from June until frost, 
and bears quantities of small burs strung along the stems, in effect 
like a large-beaded necklace. Moreover, they ripen progressively, 
the younger ones being at the upper end. This prolific character 
— 
the long blossoming period are great assets: we are trying 
ft 
ani 
to work them into other species by crossing. Incidentally, our 
seedlings of Chinese chestnut crossed with Seguinti in 1934 are 
doing well. 
(14) This is an important cross (made for the first time in 
1934), for by it we hope to combine the disease-resistant char- 
acter of S8 as well as its precocity and great fruitfulness, with the 
timber character of the American chestnut. 
Data on Growth Rates for Hybrid Chestnuts Now Growing at 
* For composition of S8, see footnote, page 64. 
