23S ROCHESTER ACADEMY OF SCIEN'CE. [Jan. 22, 



Extracts from the Minutes of the Section. 



January 13, 1893. Dr. Anna H. Searing exhibited specimens 

 collected last Spring on her trip through Mexico, California, Colorado 

 and Kansas. These specimens numbered about 175 and were 

 mounted and labeled. Among the genera most largely represented 

 were : Gilia, Astragalus, Lupinus, Trifolium and Allium. 



A specimen from Roane Mountain, Tenn,, referred to Dr. Searing 

 for identification, was found to be Leiophyllum buxifoliutn, var. pros- 

 tratum. 



Miss Beckwith exhibited a number of specimens, mostly from the 

 White Mountains, from Dr. Bradley's herbarium, lately presented to 

 the Academy. 



January 27, 1S93. Miss Beckwith exhibited diatomaceous earth 

 found near Los Angeles, Cal., in 1892, and sent to the Academy of 

 Science by the San Francisco Microscopical Society. Mr. A. M. 

 Dumond showed a cultivated water-plant, Eichornia Crassipes, major, 

 having a vigorous growth. 



Mr. Dumond exhibited Scendesmus quadri-caudatus, and Lemna 

 trisulca, and reported having found Spirogyra in conjugation after 

 October 20th. 



February 10, 1893. Dr. Searing exhibited representative speci- 

 mens of pressed ferns, arranged to show the variations in growth in 

 different localities. There were 106 specimens of 27 genera, found in 

 Binghamton, N. Y., Pennsylvania, Vermont, Florida, Colorado, Cali- 

 fornia, Bermudas, Bahamas, Mexico, Brazil, Ecuador, England, 

 Ireland, Switzerland, Capri, Italy, Mesopotamia, New Zealand and 

 the Sandwich Islands. 



Mr. John Dunbar exhibited a number of cultivated shrubs. 



February 23, 1893. Mr. C. C. Laney exhibited buds of Alnus 

 serruiata, a small branch of Georgia Pine with cones, and a number 

 of pressed plants from California. 



Miss Beckwith exhibited a series of Ferns belonging to Mr. 

 Seeley's collection, and loaned by him to the Section. The specimens 

 were some which had been received from P. Neill Eraser, a noted 

 fern collector and cultivator of Edinburgh, Scotland, being fronds 

 taken from plants raised from spores by E. J. Lowe, the author of 

 "Ferns, British and Foreign." These fronds, representing about 65 

 varieties, were all from Asplenium ftlix-fcemina, and showed great 

 diversities of forms. Some of these were but slight changes from 

 the typical form, by the forking of a few of the terminal pinnre, 



