BOTANY OF THE NORTHERN UNITED STATES. XCV11 



trorsely barbed, about the length of the conspicuously beak-pointed triangular 

 achenium. Watertown, near Lake Ontario, New York, Dr. Crowe (mistaken 

 for S. planifolius) ; Point de Tour, Lake Michigan (State coll.) ; Ringwood, N 

 Illinois, on the borders of a pond, Dr. G. Vasey. Also in the northern Rocky 

 Mountains. This and Eleocharis No. 7, with other species, serve to combine 

 Eleocharis with Scirpus. (Eu.) 



8*. S. (Isdlepis) Ilallii, n. sp. Like S. debilis in general appearance, 

 but stems more slender (5'-12' high), sometimes 1-leaved above the middle; 

 s|)ikes 1-5, ovate-fusiform, becoming cylindrical (4'' or 5" long, hardly 1^" 

 thick), some of them occasionally short-stalked ; scales ovate, the greenish cen- 

 tre strongly keeled, sharp-pointed ; stamens 2 ; bristles none ; achenium strongly 

 rugose transversely, plano-convex or (especially in Texan specimens, coll. C. 

 Wright) triangular. Along ponds, Athens, Illinois, with S. debilis, E. Hull; 

 St. Louis, Dr. Engclmunn, and southwestward. Varies, like No. 8, with 2-3- 

 cleft style. I refer it to Scirpus, as the Scirpeous genera will probably have 

 to be reduced. 

 P. 514. 



32*. Carex TVorvegica, Schk. Pale; stem 1 or less high, angled; 

 spikes 2 - 5, rather approximate, oblong, short-bracted, with a few staminate 

 flowers at their base, or the terminal all staminate ; perigynia oval or oblong, 

 lenticular, many-nerved, with a short entire beak, equalling the obtuse scale. 

 Salt marsh, Wells, Maine, Rev. J. Blake. (Eu.) 



P. 454. 



130*. C. Oliieyi, Boott. Near C. bullata, but with stouter stem, broader 

 leaves, and more numerous (4-6, usually 5) spikes, the fertile ones longer and 

 narrower (so as to appear more like those of C. vesicaria), more approximate, 

 the perigynia smaller, and with a shorter beak. In swamps, Rhode Island, 

 Olney. 



P. 541. 



CHYPSIS SCHO5NOIDES, Lam. A dwarf grass, with decumbent branched 

 culms, short and rather rigid pointed leaves, and somewhat inflated sheaths 

 hairy at the throat, the uppermost partly inclosing the condensed spike-like pan- 

 icle : the structure of tl\ spikelcts is nearly as in Vilfa. (C. Virginica, Nutt.) 

 Streets of Philadelphia and vicinity. (Adv. from Eu.) 



P. 542. 



2 ft . Vilfa cuspidata, Torr. Root perennial ; culms and leaves more 

 slender than in No. 2 ; panicle exserted, very simple and narrow ; spikelets 

 smaller, the glumes very acute, and the lower palea cuspidate. Borders of 

 Maine (on the St. John's River, G. L. Goodale) and northwestward. 



P. 547. 



l a . Calamagrostis I^aiigsdorfHi, Trin. Panicle purple-tinged; 

 the spikelets considerably larger than in C. Canadensis, and with a larger awn 

 inserted lower down ; glumes strigose-scabrous. (C. hirtigluma, Stead.) Lake 



