VOLUME XXXIX NUMBER 3 
BOTANICAL -G4ze ee 
MARCH, 1905 
GAMETOPHYTES AND EMBRYO OF TORREYA TAXI- 
FOLIA. — 
CONTRIBUTIONS FROM THE HULL BOTANICAL LABORATORY. 
JoHN M. Covutrer and W. J. G. LAND. 
(WITH PLATES A, I, II, 111) 
Torreya taxijolia Arnott! occurs in a narrow belt along the eastern 
side of the Apalachicola River, extending from the southern boundary 
of Georgia for about thirty miles southward (1). In April 1904 this 
region was visited by H. C. Cowes of this laboratory, among whose 
_ Notes the following are of interest in this connection: 
My visit was to the northernmost colony, west of Chattahoochee village, and 
close to the Georgia line. The distribution lines on CHAPMAN’s map (1) would 
lead one to suppose that the tree is xerophytic and frequents the steep and dry 
castern bluffs. I was much surprised to find that it was confined (in the Chatta- 
hoochee station at least) to the extremely mesophytic slopes of ravines, growing 
exclusively in the shade of trees, and in places that are continually moist, prefer- 
ably on slopes facing north. The northern and southern known limits of the 
tree are only about thirty miles apart, and the east-west range is much less. 
urthermore, on account of the great economic value of the wood, and the 
familiarity of the tree to all the inhabitants of the region, the likelihood of finding 
other areas is very slight. 
It is associated with a remarkable and somewhat extensive group of northern 
mesophytic plants, and the conclusion is irresistible that Torreya is a northern 
plant of the most pronounced mesophytic tendencies, and to be associated with 
* Unfortunately, Torreya was used at least three times as a generic name, in as 
many families, before 1838, the date of the publication of Torreya Arnott. Hence 
ARNOTT’s genus has been replaced by T'umion Raf., and our species becomes Tumion 
taxifolia Greene. In the present paper, however, the more familiar name is used for 
onvenience. 
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