84 BOTANICAL GAZETTE. 
root of a vascular plant are the same. It is to be hoped that these lectures will 
speedily find a translator. 
pleasure and profit. This committee consists of Messrs. J. C. Arthur, of Ge- 
neva, N. Y., and J. H. Redfield, of Philadelphia, as originally appointed, who 
have selected as the third member Mr. Thomas Meehan, of Philadelphia. At 
a late meeting of the Philadelphia Academy of Sciences, five botanists aes 
appointed to co-operate with this committee, and especially to assist in carrying 
out the details of the programme during the meeting. They are Isaac C. Mar 
tindale, Prof. Joseph T. Rothrock, Dr. J. Bernard Brinton, Wm. C. StevensoD, 
Jr., and Jos. O. Schimmel. 
AT A RECENT meeting of the Botanical Section of the Philadelphia 
Academy Mr. Meehan exhibited some nuts of Carya glabra which had two oF 
three nuts in a single exocarp, as in the common chestnut. Dr. Asa Gray Te 
marked that such specimens were of much morphological significance, and 
that the conclusion to which they inevitably pointed was as follows: The 
husk, or so-called exocarp, of Carya, is an involucre, usually containing ® 
single female flower, and connate with its oyary; its true morphology ig. 18 
vealed when, as in this case, it contains two or three flowers. The stone or shell 
of the nut is the whole pericarp in Carya as much as in Corylus. In the former 
genus it becomes free from the four valved involucre at maturity; in Tuglans 
the congenital union is more permanent, forming a drupaceous accessory fruit, ; 
of which the fleshy part is involucre, the bony part is pericarp. This view die 
rectly homologizes the Juglandacee with the Cupulifere. a 
A PERIODICAL of iderable interest to botanists and lovers of plants — 
in general has just made its appearance. It is edited and published by J. M. 
and ©. G. Lloyd, of Cincinnati, Ohio, under the name “ Drugs and Medicines of 
North America,” and is to be, according to the title page, “a quarterly devoted — 
to the historical and scientific discussion of botany, pharmacy, chemistry and 
