Spring Flora of Oklahoma 
15 
Style-branches 2-cleft, plants bulbous. 
I. Nemastylis 
Style-branches undivided, plants not bulbous. 
II. Sisyrinchium. 
I. NEMASTYLIS Nutt. 
Bulbous herbs with erect, slender, terete, usually 
branched stems and elongated, linear folded leaves. Flow¬ 
ers rather large, in our species blue or purple, solitary 
or several together, fugacious, subtended by 2 herbaceous 
bracts. Perianth 6-lobed. Stamens 3. Ovary 3-celled. 
Styles alternate with the stamens, each parted into 2 
filiform segments. Ovules numerous. Capsule obovoid, 
truncate, dehiscent at the summit. 
1. Nemastylis acuta (Bart.) Herb. Northern, Nemastylis. 
Stem 4'-24' high. Spathes 2-flowered. Flowers l'-2' broad, the di¬ 
visions oblong-obovate, obtuse. Capsule obovoid, 5"-6" high, 3"-4" 
in diameter. 
On prairies. Payne, Comanche and Murray counties. April-June. 
II. SISYRINCHIUM L. 
Sepals and petals (perianth) alike, spreading. Cap¬ 
sule globular, 3-angled. Seeds globular. Low, slender 
perennials, with fibrous roots, grassy or lanceolate leaves, 
2-edged or winged stems, and fCigacious umbeled-clus- 
tered small flowers from a usually 2-leaved spathe. 
1. Sisyrinchium graminoides Bicknell. Stiut. BLUE-Ei r ED grass. 
Stem broadly 2-winged, stout, erect or reclining, usually terminating 
into unequal branches subtended by a conspicuous grassy leaf. Basal 
leaves equaling or shorter than the stem, often lax and grass-like. 
Umbel 2-4-flowered. Flower 6"-9" broad. Capsule sub-globose, 2 
3" in diameter when mature. 
In moist or dry soil, grassy places. Common. April-June. 
