MONOECIA— TRIANDRIA. Carex. 85 



deeply cloven perhaps than that of C. remota, though this dif- 

 ference is not very striking. The spikelets are more turgid, and 

 it may be suspected that Micheli had our present species in view 

 at his <.33./. 15, though the aggregate spiAre/eis escaped him. 



12. C. incurva. Curved Carex. 



Spikelets crowded into a dense head. Lower florets fer- 

 tile. Bracteas membranous. Stem roundisli, smooth. 

 Leaves channelled. 



C. incurva. Lightf. .544. t. 24./. 1. Fl. Br. 971. Engl.Bot. v. 13. 

 t. 927. Willd. Sp. PL r. 4. 217. Hook. Scot. 261. Schk. Car. 

 27.t.U,h.f.95. 



C. juncifolia. AlUon. Pedem. v. 2. 264. t. 92./. 4. Sm. Tour om the 

 Continent, ed. 2. v. 3. 142. 



C. Fl. Dan. t. 432. 



C. n. 1354. Hall. Hist. v. 2. 183. 



C. n. 86. GineLSib. v. 1.145. f.30./.2. 



About the mouths of alpine rivers, in a sandy soil, but rare. 



In deep loose sea sand, at the mouth of the Naver, and near Skel- 

 herry in Dunrossness, Shetland. Dr. Hope. On a sandy flat 

 part of Aberdeen Links, near the mouth of the Don. Prof. 

 Beattie. 



Perennial. July, August. 



Root long and thread-shaped, creeping very extensively. Stem 

 from 2 to 5 inches high, most generally ascending with a curve, 

 nearly round, or bluntly angular, striated, smooth to the touch, 

 leafy at the bottom only. Leaves shorter than the stem, linear, 

 acute, curved, channelled, smooth. Spikelets sessile, ovate, 

 densely crowded into a terminal, brown, somewhat three-lobed, 

 head. Bracteas shorter than the spikelets, elliptical, concave, 

 membranous, brown with pale edges, slightly keeled. Scales 

 like them, but more acute, and flatter. Fertile florets in the 

 bottom part of each spikelet, each with a very short style, and 

 2 long stigmas. Barren ones above them, rather more nume- 

 rous. Slam. 3. Fruit ovate, smooth-edged, with a slightly notch- 

 ed beak. Seed lenticular. 



On the Alps the stem is almost always straight, and rather taller 

 than on the driving sand of the northern coasts. 



Scheuchzer's 1. 1 1 ./. 7, quoted by Haller, cannot surely be our plant. 



13. C. arenar'ia. Sea Carex. 



Spikelets numerous, crowded into an oblong spike ; upper 



ones chiefly of barren, lower of fertile, florets. Bracteas 



membranous; lower ones leafy. Stem triangular. Leaves 



flat. Fruit winged. 

 C. arenaria. Linn. Sp. PL 1381. FL Suec. ed. 2. 325. Willd. v. 4. 



223. FLBr.97\. Engl Bot. v. 13. L 928. With. 90. t. 20. 



