YELLOW-EYED GRASS FAMILY 113 
flowers. Petals 5; sepals 3; fertile stamens 3 inserted on the 
corolla (3 aborted stamens), capsule many-seeded. 
AIS 
Characters, those of the Family. 
Scape with ap conspicuous) bulb) at base!) 2) ss. .0 ts is) oe) we) rentcola 
Scape not arising from a conspicuous bulb. 
Heads nearly globose. 
hes twouside sepals; without v wines os yr en el) Give 6s) aes Xe herwosa 
The two side sepals winged. 
scape” (decidedly, fattened’ jaja) Vas = 6 «| os) Xn, Carolimiana 
Scapemmot distinctly, flattenedias) s.nan nen ic) ents pk Ontana 
Heads cylindric or oblong. 
Keel lot aterall sepals: fringed) V) 5) vo aie ey er et fe en) es ten bata 
Keelmotlateralsepals) not) fringed su) -) weuteen ae) els) eee unalone 
1. X. flexuosa, Muhl. (Fig. 8, pl. 9.) SLENDER YELLOW-EYED GRASS. 
Heads globose, + in. high; leaves narrowly linear. The 2 side sepals 
without wings. The flower scape only slightly or not at all twisted, 4 to 
18 in. high, expanding to a bulb at base. Expanded flower about { in. 
diameter. Swamps and wet places. July-Sept. 
2. X. montana, H. Ries. NorTHerN YELLOW-EYED GRASS. Two side 
sepals with wings, flower scape only slightly twisted, not bulbous at base, 
heads oblong. Smaller than No. 1, but much resembling it. White Moun- 
tains. In cold bogs. July-Aug. 
3. X. fimbriata, Ell. (Fig. 6, pl. 9.) FRINGED YELLOW-EYED GRASS. 
Scape stout, 2 to 4 ft. high, angled, heads cylindric, 4 to 1 in. long. 
Lateral sepals narrow and twice as long as the subtending chaffy bract 
and distinctly fringed. Wet pine barrens, New Jersey. 
4, XX. caroliniana, Walt. CaRoLINA YELLOW-EYED Grass. Scape de- 
cidedly flattened, 6 in. to 2 ft. high. Lateral sepals winged, obscurely 
fringed above, these lateral sepals shorter than the chaffy bract, sub- 
tending them. Swamps mostly near the coast. 
5. X. arenicola, Small. (Fig. 7, pl. 9.) Twistep YELLOW-EYED GRASS. 
(X. torta, Kunth.) Scape much twisted, arising from a bulbous base. 
Leaves also spiral twisted. Heads narrow oblong. Lateral sepals ex- 
ceeding the bract and slightly fringed. Dry pine barrens, New Jersey. 
May-Aug. 
6. X. Smalliana, Nash. Concpon’s YELLOW-EYED Grass. (X. Cong- 
dont, Small.) Larger than X. caroliniana, the stem 16 to 22 in. high. 
Leaves about 3/8 in. broad at base, the longer ones as long as the flower 
stem. Bracts forming the head numerous with irregularly notched bor- 
ders. Lateral sepals } in. long. ‘Low grounds, Mass. to New Jersey. 
Aug.-Sept. 
Famity II.—ERIOCAULACEAE. Pirewort FAmILy 
Plants growing in bogs and in water. Leaves tufted, grass-like, 
springing directly from the root. Flower stem longer than the 
leaves, sometimes very long, angular and twisted. Flowers in 
rounded heads, each individual flower subtended by a thin dry 
bract. Pistillate and staminate flowers in the same head or occa- 
