206 
with a specimen obtained in the same region by Dr. Chapman 
and seems to be undescribed. 
Mrs. Wolcott exhibited and remarked on some yellow-fruited 
choke-cherries (Prunus Virginiana) collected at Dedham, Mass., 
during the present summer. 
MONDAY, AUGUST 15th. 
On motion the Chairman appointed Messrs. David F. Day, 
Wm. M. Canby, and A. A. Crozier a Committee on Resolutions, 
and Prof. W. J. Beal, Dr. N. L. Britton and Mrs. H. I.. Wolcott 
a Committee on Nominations. It was also resolved that the 
Secretary be instructed to request the Committee of Arrange- 
ments for the next meeting of the Association to provide a special 
room for the meetings of the Botanical Club. 
Mr. W. M. Canby announced the discovery by Mr. M. E. 
Hyams of the fruit of Darbya umbellulata, Gray, and exhibited 
specimens collected by the discoverer near Charlotte, N. C. 
These show that the genus is distinct from Buck/eya, with which 
it has been united by Bentham and Hooker, and more closely al- 
lied to Comandra, from which it differs in its opposite leaves, and 
axillary flowers (the pistillate probably single, the staminate um 
bellate), and in other characters. The specimens tend to confirm 
Dr. Gray’s original opinion that it is distinct from either; never- 
theless Comandra livida exhibits intermediate characters. He 
further remarked on the history of the plant, stating that it was col- 
lected with immature fruit by Dr. Boykin at Milledgeville, Ga., and 
reported in Silliman’s Journal in 1846; these specimens were lost 
at sea. Staminate flowers have been collected by M. A. Curtis 
at Lincolnton, N. C. and by Chas. Mohr in Northern Alabama. 
He expressed the hope that the pistillate flowers would be col- 
lected next spring, and that then Dr: Gray would complete the 
description he had so well begun. ; 
Mr. A. A. Crozier described an oven for drying botanical 
specimens. It consisted of a sheet-iron box, three feet high and 
wide enough to take in a plant-press, which was placed on a plat- 
form under which was an oil stove or gas burner. 
Rev. Thomas Morong introduced the proposition of forming 
_a Botanical Exchange Club in America, similar in its objects to 
