ADDENDA TO THE BOTANY OF THE NORTHERN STATES. XC1 



P. 59. 



2 a . Sfellaria humifusa, Rottbcell. A low, glabrous, perennial species, 

 spreading on the ground, with the leaves oblong (2" -3" long), fleshy, sessile ; 

 petals 2-parted, longer than the calyx; stamens 10. — N. Maine, on the upper 

 part of St. John's River (G. L. Goodule), and northward. (Eu.) 



P. 73. 



3*. Geranium columbinum, 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. Psoralca escail£sata, Pursh. (Pomme Blanche, or Pomme 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. 97. 



GSycyrliiza lepidldta, Nutt. (Wild Liquorice.) (The genus may 

 be known from Astragalus, which it considerably resembles in foliage and in 

 flower, by the pods usually beset with prickles, few-seeded, and one-celled.) 

 Roots long, perennial, sweet; stem 2° -3° high; leaflets 7 to 9 pairs and an 

 odd one, oblong-lanceolate, mucronate-pointed, sprinkled with little scales when 

 young, and with corresponding dots when old ; spikes peduncled in the axils of 

 the leaves, short ; flowers whitish ; pods oblong, scarcely dehiscent, beset all over 

 with hooked prickles, so as to resemble the fruit of Xanthium on a smaller scale. 

 — Vicinity of Buffalo, New York, on the sands of the shore, probably drifted 

 from the northwest, but perfectly established, G. W. Clinton. 



P. 97. 



2\ Astragalus P8att«Blsis, Nutt. Villous ; stems decumbent or as- 

 cending, 6'- 18' long; stipules conspicuous, ovate-lanceolate or triangular-lanceo- 

 late and pointed; leaflets 10-17 pairs, oblong, often glabrous above; flowers 

 crowded in a short spike or oblong head ; calyx villous , corolla cream-color or 

 yellowish, often tinged with purple ; fruit oblong, somewhat incurved, nearly an 

 inch long, fleshy and thick-walled (but less so than in no. 1 and 2), villous with 

 white hairs. (A. Tennesseensis, Gray in Chapm. S. Fl.) — Illinois, on the gravelly 

 banks of Illinois River or on sand-ridges ( Vasey, Slosson, Bebb), and southward 

 and westward. May. 



P. 98. 



4 a . A. alpinns, 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-hairy, narrowly oblong, with the 

 dorsal suture decidedly introflexed and projecting internally, raised on a stalk 



