CYPEttACE/TC. 



899 



10. Sharp Scirpus. Scirpus pungens, Vahl. (Fig. 1084.) 

 (Eng. Bot. Suppl. t. 2819.) 



Yery near the triangular S., but a 

 rather smaller plant ; one or two of the 

 sheaths bear narrow, keeled leaves, 1 to 

 3 inches long, and the spikelets are few 

 (usually 3 to 6), all sessile, in a close 

 cluster ; the stiff, triangular, outer bract 

 continuing the stem as in the triangu- 

 lar S. 



In bogs, marshes, and on the margins 

 of pools, chiefly in North America and 

 the West Indies, but occurs occasionally 

 in western Europe, and has been found 

 on the banks of St. Ouen's Pond, in 

 Jersey. Fl. summery rather late. 



Fig. 1084. 



11. Triangular Scirpus. Scirpus triqueter, Linn. (Fig. 1085.) 

 (Eng. Bot. t. 1694.) 



Eootstock creeping. Stems acute- 

 ly triangular, 2 or 3 feet high, leaf- 

 less, except that the one or two loose 

 sheaths at the base bear a short lanceo- 

 late blade, from a couple of lines to near 

 an inch long. Spikelets usually 8 or 10 

 or even more, the central ones sessile, 

 the others stalked, forming a compound 

 lateral cluster or umbel ; the stiff, tri- 

 angular outer bract continuing the stem 

 for an inch or more. Each spikelet is 

 ovoid, 4 or 5 lines long ; the glumes 

 brown, broad, usually notched or fringed 

 at the top, with a minute point. Hypo- 

 gynous bristles about 5. Style 2-cleft. 

 Nut smooth and shining. 



In marshes, and edges of pools, in 

 central and southern Europe, extending 

 eastward to the Caucasus, and north- Fig. 1085. 



2 n 2 



