48 32. Carex. 9. CYPERACEiE, PLend.pL 



11. Carex arenaria. Sand carex. 



Spikelets alternate, crowded; upper spikelets male, the 

 intermediate ones female or androgynous ; lower spikelets 

 female; y)7«V ovate, margined, apex two-cut, ciliated, ser- 

 rate, curved ; leaves rolled in at their edge ; root creeping. 



Gramen cyperoides, q. Graraini cyperoidi ex monte Ballon simile hu-, 

 milius, in maiitimis et arenosis nascens Plukenet. Rati Syn. 423, spic. 5. ■ 

 Carex arenaria, Lin, S, P. 1381. 



Shores of the sea ; perennial ; June. 



Root very long; culm 18 in. long, bent, naked; leaves 

 in tufts ; sheaths dry, brown ; spike ovate, compressed, 

 two-rowed; upper spikelets crowded; bractcce lanceolate, 

 scariose, the lower ones having a leafy point; glumes 

 acute, yellowish, brown ; fruit lanceolate, acute, winged, 

 margin rough. 



12. Carex Witheringii. Witherhig's carex. 

 Spikelets alternate, crowded, upper male, lower female, 



intermediate female or androgynous ; Jhdt ovate, apex 

 two-cut, margined, margin serrated, ciliated ; culm upright; 

 leaves channelled ; root fibrous. 



Carex arenaria 2. Withering 125. 



Sands on the sea-shores ; perennial; June. 



Root not creeping ; culm 5 in. high, naked, sheathed at 

 the base ; leaves slender, acute, channelled, not so long as 

 the culm ; hractece leafy, acute, slender, semi-amplexicaule ; 

 spike two-rowed, lanceolate ; spikelets sessile, acute ; glume 

 lanceolate, yellow, with a green rib ending in an awn. 



13. Carex muricata. Thorn carex. 



Spikelets ovate; upper spikelets male, close; fruit di- 

 verging, horizontal, ovate, plano-convex, apex two-toothed, 

 margined at the base, margin ciliated, serrated ; leaves 

 narrow ; root fibrous. 



Gramen cyperoides spicatum minus, Rail Syn. 424, spic. 9. 

 Carex muricata, Lin. S. P. 1382. 

 ' Carex canescens, Leers Fl, Herb. 712. 

 Carex spicata, Hudson FL Aug. 406. 



Woods and moist meadows ; perennial ; May and June, 

 Culm upright, 18 in. high, 3-sided, sides flat, angles 

 acute, rough; leaves narrow, keeled; spike branched, oblong, 

 cylindricar, 6 to 8-parted ; spikelets 8 or 10, roundish; 

 hractece ovate, scariose, keeled, bristly at the end ; glume 

 ferruginous, with the margin and keel greenish. 



^. gracilis. Spike slender, compound ; culm rather 

 mooth. 



