ADDENDA 



TO THE 



EOTANY OF THE NORTHERN UNITED STATES, 



Page 5. 



i. Anemone Caroliniana, Walt. Stem 3' to 6' high from a small 

 tuber, hairy above, simple, one-flowered, bearing a 3-parted sessile involucre at 

 or below the middle, its divisions wedge-shaped and 3-cleft ; root-leaves 3-parted 

 or divided with the divisions incised, or again 3-cleft and incised ; sepals 11-20, 

 linear-oblong, purplish ; head of fruit oblong. N. and W. Illinois ( 0. Everett, 

 J. W. Powell, M. S. Bebb, E. Hall, T. J. Hale, &c.) and southward. May. 



P. 57. 



Lychnis vespertlna, Sibth. Resembles Silene noctiflora, p. 56, but 

 has 5 styles, therefore belonging to Lychnis, and is usually dioecious ; a coarse, 

 hairy biennial, more or less viscid, loosely branched above ; leaves oblong or 

 ovate-lanceolate; flowers opening in the evening; petals white or pinkish, 2-cleft, 

 crowned ; fertile calyx ovoid in fruit, with long lance-linear teeth. Waste 

 places, &c. Elmira, N. Y., Philadelphia, and Wilmington, Del., E. Tatnall. 

 (Adv. from Eu.) 



P. 73. 



3*. GERANIUM COLUMB!NUM, L. Somewhat hairy, decumbent ; leaves 5-7- 

 parted and the, divisions once or twice 3-cleft into linear lobes; peduncles and 

 pedicels long and slender ; sepals awn-pointed, about as long as the entire or 

 barely notched purple petals ; seeds strongly reticulated. Lancaster, &c., Penn., 

 Prof. Porter. (Adv. from Eu.) 



P. 94. 



6. Psoralea escillenta, Pursh. (POMME BLANCHE, or POMMK DE 

 PRAIRIE.) Hirsute with rough hairs; stem 3' to 12' high from a farinaceous 

 tuberous root ; leaflets 5, lance-oblong ; peduncles elongated ; spike short and 

 dense ; lobes of the calyx lanceolate, about equalling the blue corolla. On the 

 Wisconsin River (Mr. Spears, T. J. Hale, &c.) and northwestward. June. 



P. 98. 



4*. Astragalus alpillUS, L. Stem diffuse, 6' to 12' high; leaflets 

 13-25; corolla 5" or 6" long, violet-purple or at least the keel tipped with 

 violet or blue ; teeth of the calyx nearly the length of the tube ; pods black- 



