330 
The Ohio Naturalist. 
[Vol. XIV, No. 7, 
Crocus L. 
Perennial tufted herbs, with narrow leaves arising directly 
from the eorm; leaves with revolute margins; flowers solitary, 
perianth united in a long tube. 
1. Crocus vernus All. Crocus. Leaves 2 to 4, equalling 
the flower, glaucous beneath; perianth segments 1 to inches 
long, lilac or white, often striped with purple, throat pubescent, 
not yellow. Escaped in Lake county. 
Sisyrinchium L. 
Perennial slender tufted herbs, with short rootstocks; stems 
simple or branched, two winged; leaves grass-like; flowers small, 
terminal umbellate, usually blue in color; capsule globose. 
Key. 
1. Stems simple with sessile terminal spathe; flowers with perianth Y 
inch long; pedicles erect and shorter than the inner bracts; capsules pale. 
S. angustifolium. 
1. Stems slender and ascending, mostly branched, broadly winged; 
flowers perianth less than \A inch long on recurved pedicles. Capsules dark. 
5. graminoides. 
1. Sisyrinchium angustifolium Mill. Pointed Blue-eyed- 
grass. Stem stiff, erect, pale and glaucous, winged, edges minute¬ 
ly serrulate, 4 inches to 2 feet high; leaves 4 to 9 inches long, 1—1G 
to inch broad, serrulate; spathes green or slightly purplish; 
flowers deep violet, blue, Yz inch long. General. 
2. Sisyrinchium graminoides Bickn. Stout Blue-eyed-grass. 
Light green, somewhat glaucous; stems broadly winged, stout, 
erector reclined, 8 to IS inches tall; leaves 4 to 11 inches long and 
1-12 to % inch broad; umbels 2 to 4 flowered, pedicels thread-like; 
flowers p 2 to ? /\ inch broad, 34 to 1 inch long, petals sparsely 
pubescent on the outer surafee. General. 
Dioscoreaceae. Yam Family. 
Slender twining vines slightly woody, with fleshy rootstocks; 
leaves petioled and netted-veined. Flowers diecious, epigynous 
and trimerous; ovulary trilocular. 
Dioscorea -Plum.) L. 
Slender twining vines with heart shaped or halbard-shaped 
leaves. Flowers inconspicuous and borne on pendulous spikes, 
panicles or racemes. 
1. Leaves heart-shaped, abruptly acute or acuminate; without bulblets. 
D. villosa. 
1. Leaves usually cuspidate and often halbard-shaped; with bulblets 
in the axils of the leaves. D. bulbifera. 
