302 



PROCEEDINGS OF THE ACADEMY OF 



July 3c?, 

 Vice-President Bridges in the Chair. 



Twenty-nine members present. 



The following papers were presented for publication : 



" Descriptions of two new species of Uniones from Georgia." By 

 Isaac Lea. 



" Descriptions of three new species of Uniones from Mexico." By 

 Isaac Lea. 



" Descriptions of six new species of Unionidae from Alabama." By 

 Isaac Lea. 



" Descriptions of seven new species of Unionidas from the United 

 States." By Isaac Lea. 



" Descriptions of three new species of Exotic Unionidiae." By Isaac 

 Lea. 



" Descriptions of new fossil remains collected in Nebraska and Utah, 

 by the Exploring Expeditions under the command of Capt. J. H. Simp- 

 son, of U. S. Topographical Engineers," [extracted from that officer'. 

 forthcoming report.] By F. B. Meek. 



And were referred to Committees. 



Dr. Darrach presented the following list of plants seen in flower in 

 the neighborhood of Philadelphia during the month of June. 



RanunculacejE. 



Thalictruni cormiti. 

 Ranunculus alismaefolius. 

 Actsea spicata, v. alba. 

 Cimicifuga racemosa. 



Menispermace,e. 

 Menispermum canadense. 



Cabombace,e. 

 Brasenia peltata. 



Papaveraceje. 

 Papaver dubium. 



Crucifek^. 

 Nasturtium sylvestre. 

 " palustre. 



Arabis Canadensis. 

 Camelina sativa, 

 Lepidium Virginicum. 



Violace^e. 

 Viola Canadensis. 



Hypericace.*:. 

 Hypericum perforatum, 

 corymbosum. 



Caryophylxace,e. 

 Agrostemma githago. 

 Spergularia rubra. 

 Anychia dichotoma. 

 Mollngo verticillata. 



PORTULACACEiE. 



Portulaca oleracea. 



Malvace^;. 

 Malva rotundifolia. 



Tiliace^e. 

 Tilia Americana. 



Linace^;. 

 Linuni usitatissiuium. 



Anacardiace^e. 

 Rhus venenata. 



VlTACEJE. 



Vitis cordifolia. 



Rhamnace^e. 

 Ceanotbus Americanus. 



CELASTRACEiE. 



Euonymus atropurpureus. 



POLYGALACE^. 



Polygala lutea. 



LEGCMINOS.S. 



Robinia pseudacacia. 

 Tepbrosia Virginiana. 

 Latbyrus palustris. 



Rosacea. 



Spiraea opulifolia. 

 Gillenia trifoliata. 



[July, 



