BOTANY OF THE SOUTHERN UNITED STATES. XC.X 



8*. S. (Isolcpis) SEiillJi, n. sp. Like S. debilis in general appearan re, 

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

 spikes 1-5, ovate-fusiform, becoming cylindrical (4" or 5" long, hardly 1A" 

 thick), some of them occasionally short-stalked; 6cales 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, Mason Co., Illinois, with S. debilis, E. 

 Hall, and near St. Louis, Dr. Engelmann, and southwestward. Varies, like 

 no. 8, with a 2-cleft or 3-cleft style. I refer it to Scirpus, as the Scirpeous genera 

 will probably have to be reduced. 



P. 519. 



32". Carex Norvegica, 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 one all staminate ; perigynia oval or ob- 

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

 scale. — Salt Marsh, Wells, Maine, Rev. J. Blake. (Eu.) 



P. 519. 



53 a . C. rariflora, Smith. Resembles C. lirnosa (of which it was formerly 

 thought to be a variety), but smaller, 4' - 9' high ; the leaves natter and rather 

 broader ; pistillate spikes with only 5-10 flowers, which are usually less crowded ; 

 perigynia very short-pointed or bluntish, rather shorter than and involved in the 

 broadly-ovate blackish scale. — Mt. Katahdin, Maine (G. L. Goodale), and 

 northward. (Eu.) 



P. 530. 



106\ C. pallldosa, Good. More slender, spikes smaller and leaves 

 narrower than in no. 107 ; perigynia ovate, very strongly nerved, smooth, with 

 a 2-toothed orifice, about the length of the lanceolate awned scale. — Border of a 

 salt marsh at Dorchester, Mass., near Savin Hill, W. Eoott. (Nat. from Eu. ?) 



P. 534. 



130 a . C. Olneyi, Boott. Near C. bullata, but with stouter stems, 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. 



Crypsis schcenoides, Lam. (See Plate 1.) A dwarf grass, with decumbent 

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

 sheaths hairy at the throat, the uppermost partly enclosing the condensed spike- 

 like panicle; the structure of the spikelets nearly as in Vilfa. (C. Virginica, 

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



P. 542. 



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

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



