262 
REFERENCES. 
Conmman, L. C. - Diseases of the Areca Palm (Areca catechu, L.). I. 
fo leroga or rot-disease. Ann. Mycol. AVAIL, 2 pSl. 
10. 
Rorer, J. B. - Pod. rot, canker, and chupon-wilt of Cacao caused 
by hee nero sp. Bull. Dept. Agric. Trinidad, 
X, No. 1910. 
RosEnNBaAuM, J. - pissy of em genus Fapeeneners. Journ. Agric. 
, VIII, p. 233, 1917 
McRagz, W. - - Phytophthors Meadii n. sp. n Hevea brasiliensis. 
Dept. Agric. India, Bot. Series, IX, No. 6, 
Burtiter, E. J. & Colocasia blight caused Ag ca ak wee Colocasiae 
Kourkarnt, G. 8. Rac. Mem. Dept. Agric. India, Bot. Series, V, 
No. 5, 1913. 
Butter, E. J. - Fungi and Disease in Plants, Calcutta, 1918. 
Dastur, J. F. - On Phytophthora parasitica nov. spec. Mem. Dept. 
Agric. India, Bot ies, V, No. , E913. 
AsuBy, 8S. F. - Notes on two diseases of the Coconut palm i 
Jamaica, etc. West Indian Bull., XVIII, p. él, 
1920. 
Asupy, 8. F. - Relation between Cacao pod rot and Coconut bud 
Agric. News, Barbados, XX, No. 507, p. 318, 
XL.—THE FRUITING OF GINKGO BILOBA AT KEW. 
W. DaALLIm™oreE. 
Considerable interest was created by the publication in K. B. 
1920, p. 47, of a note on the fruiting of Ginkgo biloba Linn. (the 
Maidenhair Tree) at Kew. The “fruits” (seeds), some 4 or 5 
in number, were produced during 1919 on an old male tree near 
the Main Gate, the fruiting branch having been grown from a 
graft of a female tree obtained in 1911 from the Director of the 
Montpellier Botanic Garden. 
The note gave rise to correspondence casting doubt upon the 
truly dioecious character of the species and in October 1920 
Professor F, A. F. C. Went of Utrecht wrote :—‘‘ In connection 
with this note I should like to make a few remarks on the fruiting 
of a male Ginkgo tree in the Botanical Garden of the University 
of Utrecht. There is a very old male tree in that garden whose 
early history is unknown, but its age is perhaps more than one 
hundred years. The diameter of the stem at ground level is 
more than one meter. For many years the tree stood in the 
shadow of some large elm trees. These were removed five years 
ago, in order to get space for the building of a new laboratory. 
The consequence was that the tree got more sun, and the upper 
branches have since considerably developed. 
“In recent years the tree has blossomed frequently and, just 
as at Kew, ‘so profusely as to litter the ground beneath it with 
its small green cylindrical inflorescences.’ Only in the autumn 
