ACADEMY OF NATURAL SCIENCES. 61 



Description of a New Species of Alsine. 



BY A. KELLOGG, M.D. 



Alsine Wahlenb. 

 A. palustre Kellogg. 



Plant slender, somewhat decumbent at the base, simple or slightly branching 

 at the summit, glabrous, sulcate on opposite sides of the stem, sub-flexuous, 

 six inches to a foot in height. Leaves lance-linear, acute, mucronate, glabrous, 

 margins scabrous, sub-connate and slightly sheathing at the membranous base, 

 shorter than the internodes (half to more than an inch in length). Peduncles 

 slightly compressed, axillary, solitary, long, naked. Sepals ovate-lanceolate, 

 acute or subacute, one to three-nerved, green with scarious margins, about half 

 the length of the petals. Petals white, oblanceolate, obtuse, entire. Stamens 

 ten, subequal, short. Styles three ; stigmas deeply biparted. 



A plant very abundant in swamps in this vicinity, known to us for the last 

 ten years, but as we find no description which we recognize, we conclude it 

 must be unknown. Blossoming in July and August. Specimens by Mr. 

 Bolander. 



Regular Meeting, September 7th, 1863. 

 President in the Chair. 



Present, seven members. 



Donations to Cabinet : 



Fishes, Crustacea, and shells from the Sandwich Islands, by 

 Andrew Garrett, Esq. 



Donations to the Library : 



Proceedings of the Boston Society of Natural History, Vol. ix, 

 sigs. 13 and 14, May and June, 1863. Proceedings of the Acad- 

 emy of Natural Sciences of Philadelphia, for April and May, 1863. 

 Proceedings of the Royal Horticultural Society, Vol. 3, No. 5, 

 May, 1863. SHliman's Journal, July, 1863. 



Professor Whitney presented the following paper by Dr. J. G. 

 Cooper : 



