464 
Dr. H. H. Rusby described a new genus from Bolivia, in the 
family Jcacinaceae, illustrating it by specimens and black-board 
drawings. Its structural relations to the other groups of the 
family and to the associated genera were discussed. The com- 
munication was discussed by Dr. Britton. It will be published 
in the BULLETIN. 
A communication from Miss S. B. D. Lewis on the species of 
Nymphaea found in Raquette Lake was presented by Dr. Allen. 
It was illustrated by colored drawings. The form of Pontederia 
cordata with cream-colored flowers was also reported by Miss 
Lewis. An animated discussion of the communication was par- 
ticipated in by Dr. Britton, Prof. Lloyd, Mr. Rydberg, Mrs. Brit- 
ton and the Secretary. ie, 
Dr. Allen remarked on his collections and observations in the 
Far North, and exhibited a number of interesting specimens. 
TUESDAY Eveninc, NovEeMBER 10th, 1796. 
The President in the chair and 27 persons present. 
Miss S. B. D. Lewis was elected a corresponding member. . 
Miss Catharine Burnett read her announced paper entitled 
“The Influence of Light on the Morphology and Anatomy of 
Dorsiventral Organs,” which will be published in a subsequent 
issue of the BULLETIN. | 
Dr. Emily L. Gregory remarked on her observation of numer- 
ous adventitious buds on the roots of the Horsechestnut tree 
(AEsculus Hippocastanum), when exposed to light by excavations 
for a street. An extended discussion of the occurrence of adven- 
titious buds normally produced on the roots of other trees followed. 
Prof. Francis E. Lloyd read a paper on “Some Interesting 
Forest Trees of Oregon,” of which the following is an abstract: 
The physical and climatic conditions of Oregon and Washing- 
ton are’such as to result in a large annual rainfall in the region 
west of the Cascade Mountains. This rainfall, while not exceS- 
sive, is plentiful and nearly continuous’ for the greater part of the 
year. Further, a large body of snow is collected upon the Cas- 
cade Mountains; through the melting of this snow is furnished an 
abundant supply of water. The combined effect of a rich water — 
supply and mild temperature is seen in the abundant vegetable 
