110 MONOECIA— TRIANDRIA. Carex. 



apprehend, some of the reported places of growth of C. distans 

 belong. 



43. C. binervis. Green-ribbed Carex. 



Sheaths tubular, elongated, shorter than the flower-stalks. 

 Fertile catkins cylindrical, distant; partly compound. 

 Scales pointed. Stem smooth. Fruit with two principal 

 ribs. 



C. binervis. Sm.Tr.ofL.Soc.v.5.268. Fl. Br. 993. Engl. Bot. 



V. 18. t. ] 235. Willd. Sp. PI. v. 4.271- " Schk. Car. t. R, r, r. 



f.160;" rVilld. 

 C. distans. Light/. 561. 



On dry heaths, in various parts of Britain 



Very common on the driest moors about Aberdeen. Prof. Beattie. 

 Near Edinburgh. Mr. J. Mackay. Near Rippon. Mr. J. Brun- 

 ton. 



Perennial. June. 



Nearly twice the size of the last, notwithstanding its much more 

 dry and barren place of growth. Stem erect, firm, from I5 to 

 near 3 feet high, bluntly triangular, and smooth, except at the 

 very top, where the angles are sharp and partly rough. Leaves 

 erect, flat, broadish, taper-pointed, ribbed, of a deep, though 

 glaucous, green ; rough at the edges, and partially so at the 

 keel ; very rough at the triangular point ; their sheaths smooth, 

 about half the length of the leaf itself, or more. Bracteas like 

 the leaves, but smaller and narrower, with smooth sheaths of 

 about the same proportion ; the upper one short, though equal 

 to the adiommgjlower. stalk. The other Jlower-stalks are longer 

 than their sheaths, all triangular and roughish. Fertile calkins 

 3 at least, the 2 lowermost not above 3 or 4 inches asunder, in 

 which they accord with the usual proportion of other species, 

 not with C. distans ; all cylindrical, erect, blackish j often di- 

 vided, or slightly compound, at the base j often consisting of 

 barren^ore^s, for nearly half their length, at their summits. 

 Scales like those of the last, with similar rough awns. Barren 

 catkin mostly solitary, erect, above an inch long, cylindrical, 

 dense ; its scales very numerous, pointless, dark brown, with a 

 pale keel ; but there are often a few harrer\ Jlorets at the point 

 of several fertile ca^/cJHs. Stam.3- Stigm.3. irwii ovate, un- 

 equally triangular, a little compressed, smooth, with a short, 

 broad, deeply cloven, scarcely rough-edged, beak; the inner 

 surface concave, pale, streaked with several equal purplish ribs j 

 outer convex, paler, with a central prominent angle or keel, and 

 2 very distinct, elevated, smooth, green ribs towards the mar- 

 gin, though totally distinct from it, found perhaps in some other 

 species, quite unlike this, but not in any which, properly exa- 

 mined, can be confounded with it, especially C. distans. 



{ 



