328 IXIACEAE 
es margined or narrowly winged: leaf-blades 1-2 
m. wide: eo and scape pubescent with stiff, 
cule-like hai . S. scabrellum. 
Old leaf- bacs persistent, forming dense tufts of straight 
bristle-like fiber . S. capillare. 
II. PEDUNCULATAE 
peranti not yel PA 
m Rn 
d Rete densely fibrous at n bas 
pe Mer an distinctly winge er 
loc and athe-bracts rugose-veined : cap- 
vale thick-walled : plant drying dark. 6. S. cerophyllum. 
Leaves and VERE e-bracts not rugose: capsule 
thin-walled : plant not oo dark. T. S. fibrosum, 
Scape margined or anco 
Plant drying dark. 
Flowering scapes farce pee 8. S. incrustatum. 
Flowering scapes smooth-edged. 9. S. fuscatum. 
Plant n. crying dark. 
Pedun A pvp T Shorter than 
he D bract 10. S. rufipes. 
Peduncles not fascicled, as Jong as or longer 
than the subtending bract 11. S. floridanum. 
Tufts H “at the base without fibers or not densely fibrous 
e broadly ged. 12. S. graminoides. 
uo a OP narrowly winged. 13. S. atlanticum. 
Plant (tft) m dn depressed radially spreading leaves 
Perianth ae violet, or purple: capsule subglobose. 14. S. rosulatum. 
Perianth in -rose: capsule oblong to narrowly obovoid. 15. S. minus. 
Perianth yellow 16. S. Brownei. 
1. S. angustifolium Mill Plant glaucous, 1-5 dm. tall: leaf-blades 1-3 m 
wide: spathe green or merely purple-tinged, the outer braet with the pe 
united 3-6 mm. above the base: cap- 
sule dull-brown or Iu e -tinged.—Woods, 
fields an eadows, various provinces, 
Ala. to La., Colo., Sask., Ont., Newf., and 
N. C.—Spr 
2. S. mucronatum Michx. Plant green 
or glaucescent, mostly 1-4 dm. tall: 
dii perd |o slender or up 
e base 
stram or greenish-yellow.—Mead- 
OWS, hillsides, and grassy places, various 
provinces, Fla. to uos Ont, and 
Mass.—Spr. 
3. S. albidum Raf. Plant more or less tufted, 1.5-4.5 dm. tall, green T 
glaucous: leaf-blades mostly 1.5 mm. wide (1.5-3.5 mm.): scapes s 15- 3 
r : 
perianth 8-12 mm. ong, e clear white or violet-blue: capsule pale, broadly sub- 
globose, 2-3 mm long, thick- walled.—Dry or moist cUm often in meadows, 
various provinces, Ala. to La., Mo., Mieh., end N.C 
4, S. scabrellum Bicknell. Plant E md 2.5-4 dm. tall, slightly fibril- 
lose at the base, dull pale-green or glau escent: leaf-blades i- mm. wide: 
seapes slender, longer than the pe e 1-2 m wide, flattened: spathes 2, or 
rarely 3, to od nbi green, the primary Bo 3.5-11.5 em. long, the outer 
bract attenuat .2-3.8 . long, surpas sing the inner braets: n n 
blue, 8-12 mm. one  Hillsides or woods, various provinces, Ga. to N. C.—Spr 
5. S. capillare Bicknell. Plant extremely slender and delicate, 2-4.5 dm. tall, 
in thin tufts, closely fibrillose at the base, glaucescent, drying a dull olive- 
