466 PROCEEDINGS OF THE AMERICAN ACADEMY 



2. Descriptions of some New /Species of Plants. 



Card AMINE Lyallii. Glabrous : stem erect from a running root- 

 stock, simple or branched, a foot or two high : leaves few (4 to 8), 

 petiolate, undivided, reniform to cordate, the margin sinuate, 1 to 3 

 inches broad : raceme pedunculate ; flowers white : pods an inch long 

 or less, on spreading pedicels, rather shortly attenuate to a very short 

 style : radicle cleft to the middle. — 0. cordifolia, Watson, Bot. King, 

 19, in part; Gray, Proc. Amer. Acad. 8. 376; Torr. Bot. Wilkes, 

 229. In the Cascade Mountains of Oregon and Washington Territory 

 ( Wilkes, Li/all, 29 Hall, G. R. Vasey, J. Howell) ; Blue Mountains, 

 Oregon {Cusick) ; Clover Mountains, Nevada ( Watson). With fewer, 

 broader, and blunter leaves and more glabrous than C. cordifolia 

 of the Rocky Mountains. It more nearly resembles the European 

 C. asarifolia, which differs in habit and has the pods more attenuate. 



Arabis (Turritis) confinis. Biennial, rarely somewhat glau- 

 cous ; stems erect, one or several, usually simple, 1 to 3 feet high : 

 lower leaves oblanceolate, usually dentate, finely stellate-pubescent 

 or sometimes glabrous, the cauline oblong to linear-lanceolate, auricu- 

 late : flowers white or pinkish : pods more or less spreading or sub- 

 erect, a line broad or less, straight or slightly curved, usually more 

 or less attenuate above and beaked : seeds small, narrowly oblong, 

 winged. — A. Icevigata, Hook. Fl. Bor.-Am. 1. 43. Turritis glabra, 

 and var. y8, Torr. & Gray, Fl. 1. 78 and 666. T. hrachycarpa, Torr. 

 & Gray, 1. c. 79. T. stricta, Torr. Fl. N. Y. 1.53, not Grab. ; Gray, 

 Gen. 111. 1. 144, t. 59. A. Drummondii, Gray, Manual, 69. From the 

 lower St. Lawrence (Tadoussac, Pickering) along the Great Lakes 

 to Lake Winnipeg (Bourgeau), and more rarely southward (Mt. 

 Willard, Faxon; Dracut, Concord, and Brookliue, Mass., Dame, 

 Deane, Faxon ; Thimble Islands, Conn., A. L. Winton ; Cayuga Co., 

 N. Y., Dudley; Elgin and Dixon, 111., Vasey). It includes all the 

 " A. Drummondii " of the Atlantic reoion. 



Of related species, A. Drummondii, Graham, is confined to the 

 western mountains, glaucous and glabrous, or usually pubescent below 

 with appressed hairs attached by the middle, with broader straight 

 erect blunt pods, and broadly elliptical winged seeds. — A. hirsuta, 

 Scop., has all its leaves more or less hairy or ciliate, the very narrow 

 pods erect, and the suborbicular very narrowly winged seeds nearly in 

 one row. ^ — A. perfoliata, Lam., is glaucous, with the lower leaves 

 usually more or less hirsute or coarsely stellate-pubescent, the very 



