580 CTPERACK^. (SEDGE FAMILY.) 



Var. mirabilis, Boott, has hroctdly ovate pn-iiji/nia with a shorter beak, 

 longer than the acute scale. (C. festiicaeea, var. niiraltilis of Ibriner ctlitioiis. 

 C. inirabiiis, Ikw.) — Ma.ss. to Ohio, &c. 



42. C. adUSta, Boott (not of former cd.). Sjiifces 4-10, pa'e or brown, 

 gMndar, o\- thti, u\)\KV tlub-sliaped, the lower rtinote and sometimes com]iuiuKl; 

 jKriiji/iiia oval, ovate, or roundish, gradually tapering to a beak, many-nerved, with 

 the narrow wing wider above the middle, turgid at maturity, equalling the scale 

 in length and breadth; achenium large, orbicular, sessile. (C. argynintha, 

 'J\wkeriii., is a very delicate form of this, found in rocky woods.) — Moist copses, 

 ii,e., from Rhode Island (OIney) and New Jersey ( A'/ie/sAre/H), nortiiward and 

 westward : rare. 



43. C. foenea, Willd. Sjjihcs 3-8, /w/e or silvery fjreen, finally straw-col- 

 ored, mostly approximate, ovoid, generally acute, the uppermost contracted or 

 club-shaped at the sterile base ; jinigynia oval, orbicular or vbovatf, short-beaked, 

 broadly winged, appressed, transversely wrinkled, a little longer tiian the ovate 

 or lanceolate white scale; achenium on a short stalk, oval. — Sandy and mostly 

 salt or brackish marshes, &c., along the coast, from New England southward. 



Var.? ferruginea, referred liere by Dr. Boott, with rusty-colored acute 

 spikes, and longer-beaked perigynia, generally acutish at base and exceeding 

 the acute or mucronate scale {Ohio, Sullicant), connects this with C. straminea. 



Var.? sabuldnum, also reierred here by Dr. Boott, has 2-10 drooping 

 rather remote spikes, more or less obovatc or club-shaped, contracted at base, 

 pale green turning straw-color; perigynia broadly winged at base, slightly ex- 

 ceeding the pointed scale : it is C. adiista of former editions, not of Boott. — 

 Sands of the sea-shore from Maine southward. — Leaves narrow, often involute. 



44. C. Stl'aminea, Sciik. S/iilce3 2-\2, ])ale or tawny, \arying from obo- 

 vate-globular to club-sha]x'd, contiguous or rather remote ; jierir/ynia orbicular- 

 ovate or oval, often heart-shaped at base, very fid, abruptly contracted into a short 

 or tapering into a longer beak, winged, much wider and commonly longer than 

 the usually acute or pointed scale; achenium nearly sessile, oval. — Open 

 grounds and borders of woods : common, and very variable. The following arc 

 the varieties designated by Dr. Boott. — Var. typica, with 3-6 roundish spikes ; 

 perigynia sjjreading, broadly winged, ratiier longer and mueli broader than tho 

 scale. — Var. te.nera, more slender and delicate, with 3-6 smaller oval or ob' 

 ovate spikes, more tawny ; perigynia with a short and broad beak, rather longet 

 and broader than the scale. (C. tenera. Dew. C. festueacea, var. tenera, oi 

 former cd., in part.) — Var. apekta. Spikes 4-8, tawny, tapering at base, 

 drooping; perigynia long-beaked, thrice the length of the very sharp-])ointed 

 scale, loosely spreading in the spike. — Var. festucXcea. Spikes .5-8, club- 

 shaped, tawny or greenish ; perigynia abruptly short-beaked and mostly nar- 

 rowly winged, longer than the acute or mucronate scale ; plant tall and rather 

 rigid. (C. festueacea, Sehk., and former ed.) — Var. hyalixa, a chiefly West- 

 ern form, approaching the next species, with larger and thick pale spikes, usu- 

 ally 6, all tapering at base; perigynia greenish, with a wide spongy wjng, and 

 a long beak, about twice the length of the brown pointless scale ; rather tall and 

 stout, with broad leaves. (C. straminea, var. Crawei, Boott; but probably by 

 dome mistake said to be collected in Michigan by the late Dr. Crawe. C. hya- 



