Pennsylvania for Sessions iSpp-ipoo. xxi 



ture and affinities, their cross pollination and capacity to 

 produce many fine hybrids, and the structure of fruit and seed 

 in relation to germination. He described the finer hybrids 

 raised by Crozy and Dreer, and then exhibited a set of new 

 hybrids from the Conard & Jones nurseries. 



Professor Macfarlane then spoke on " The Beach Plum, 

 Botanically and Economically Considered," and the paper is 

 herewith published. 



Dr. Ferrer, from Mexico, described " Features of the Mex- 

 ican Flora." 



Dr. Macfarlane exhibited and described a fruiting branch 

 of the Ginkgo tree laden with the ripe yellow " berries." He 

 stated that the staminate trees in Woodlands Cemetery, and 

 the pistillate tree in the Jones Garden, from which the branch 

 was taken, flowered simultaneously on May i, the flowering 

 period lasting only for about thirty hours. By hanging 

 branches from the former trees on the latter, the abundant 

 fruitage now shown had resulted. 



Blooms of several orchids were exhibited by Mr. Le Bou- 

 tillier, and a plant of Nepenthes anipnllaria was commented 

 on by Dr. Macfarlane. 



The society then adjourned to inspect the recently con- 

 structed greenhouses adjoining the department, and the pro- 

 ceedings terminated with a reception given by the ladies of the 

 Auxiliary Committee. 



October 20. Dr. Miller, President, in the chair. Dr. C. H. 

 Shaw gave " Notes of a Recent Trip to Europe." He 

 described the botanical facilities at Munich University, the 

 lowland and alpine vegetation of the Tyrol, and contrasted 

 these with the American flora. In the discussion which fol- 

 lowed. Dr. Jane V. Myers and Mrs. Mary Williams took part, 

 the former advocating the planting in this country, as there, of 

 fruit trees along the roadside and field borders. 



Dr. Thomas Githens communicated " Notes on the Flora 



