CYPERACEJE. 289 



1 F SqtARRosA. Stem erect, hairy at the summit. Leaves lanceolate, 3- 

 ner^ ite. Flowers in ovate heads, clustered. Glumes oval, with long 

 aw. . V Hiding. Palecr cordate, or rounded at the huso. 



4 Augu8t— Sep'. Bogs. 1-2 ft. 



2 F SciRroiDEA. Stem erect, slender, terete, smooth, sheathed Flowers 

 in a terminal ovnte head. Glumes pubescent niih a short awn. Falar oval, 

 or lanceolate, sometimes unawnd. 



2|. July — Au^;. Damp soils. 12-15 in. 



C. SCLl!:REyE. 



Ge.vus X SCLERIA. 



FJowrrs ninn«rf'inii-. Sterile Florets ; glumes 2-G, many 

 flowered. PalcfP \ii\dL\\nct\. Fertile Florets ; glumes 2-6, 

 l-rto\vered. Palete none. Stigmas 1-3. Seed subglobose. 



1 S Oligaj»tha. Stem slender, 3-angled, glabrous, slightly pubescent at 

 the summit. Leaves linear, slightly pubescent at the base, scabrou.o, on the 

 upper surface. Flowe's in fascicles or spikes, 2-3-sessile near the summTT, 

 one on a long peduncle. Fertile florets at the summit ; sterile a', the base. 

 Seed white, smooth. 



'4- May — June. Fine barrens. 12-18 in. 



2 S Gracilis. Stem filiform, 3-angIed, glabrous. Leaves linear, glahroup, 

 narrow. Spike* 2-3 at the summit ot the stem, each bearing a fertile floret. 

 Glumes ferrugmous, mucronate. Scfti white, smooth. 



% May— June. Southern Ga. 10-12 in. 



3 S Triglomerata. Stem triangular, striate, scabrous. Leaves linear- 

 lanceolate, somewhat hairy. Flowers in terminal and lateral spikes, cluster- 

 ed, pendulous. Glumes ciUate, mucronate. Fertile florets 2-3 m each spike. 

 Seea smooth, 



%. Through the Summer. In dry or moist soils, common. 1-2 ft. 



4 S Pacciflora. 5/cm slender, acutely 3-angIed, glabrous. Le<7rt'5 linear, 

 scabrous alon^ the maripn. Spikes lateral and terminal, pendulous. Glumtt 

 keeled, ferrugmous, glabrous. Seed rough. 



% May — Sept Damp soils. 12-18 in. 



5 S CiLiATA. Stem erect, glabrous, geneially 1-leaved. L^a/ pubescent 

 on the upper surface, linear, channeled. Spikes m terminal clusters. Glumes 

 ciliate, ovate, ferruginous. Seed rough. 



%. May — June. Damp soils. 1-2 ft. 



6 S HiRTELLA. Stem erect, triangular, pubescent. Leaves narrow, pu- 

 bescent channeled. Spikes axillary or terminal. Bracts hairy, ciliate. 

 Glumes pul)escent, unequal. Seed wrinkled. 



% Through the Summer. Damp soils. 12-18 in. 



7 S Reticulata. Stem acutely 3anglcd, glabrous. Leaves narrow, gla- 

 brous, wiih the sheaths winged. Sjiikes numerous, a.xillary and terminal, on 

 long peduncles. G/umes lanceolate, glabrous. Seed rough. 



'4 July — August. Damp soils. 1-2 ft. 



8 S Verticillata. Stem slender, Klabrous, 3-angled. Leaves glabrous, 

 fihform. Flou^rn in clustered spikes. Glumes ovate, acuminate. Seed glo- 

 bose, mucronate, transversely wrinkled. 



%. July— Aug. Damp soils. 10-15 in. 



9 S I- fTA. Stem erect 3-angled, pubescent. Ijtaves pubescent- 



Spnife* t .alternate. G/umw bristly. Seed globose, mucronate, trans- 



versely wrui.K.led. 



% July — Aug. Damp soils. 12-15 in. 



PART II. 23 



