144 IRIDACEAE 
and with a broad loose terminal cluster of flowers with equal spreading, 
orange, purple-mottled, flowers, the petals and sepals nearly or quite 
equal. Stamens 6, inserted at the base of the perianth segments. 
1. G. chinensis, (L.) Kuntze. BLacksrerry Lity. Stem 1 to 5 ft. 
tall. Fruit many knob-like protrusions, resembling in form and ap- 
pearance a blackberry. In southern part of our region. June-July. 
3. SISYRINCHIUM, L. 
Herbs arising from rootstocks. The three branches of the style thread- 
like. Leaves grass-like. Segments of perianth 6, equal, the petals widest 
at outer extremity; stamens 6. From the midvein of each petal extends 
a delicate spine-like projection. Flowers wheel-formed. Below the little 
umbel of flowers are two leaf-like bracts which form a sort of spathe. 
From this spathe arise by delicate pedicels the two, three, or more star- 
like flowers. 
Bracts below the flowers very unequal. 
The long bract generally bright purple . . . . . . S. mucronatum 
The long bract not purple . te © «© » «© We (ANGUS OlUME 
Bracts below the flowers nearly or quite equal. 
Leaves from 1/10 to 1/5:in. wide. 
Stem wings notched . af Se VER show Broth 6 a maraly (oi OO ILE CUT CEL IRENES 
Stem wings not notched J 2 ee ol te ss we On RTGMINOSES 
Leaves from 1/40 to 1/20 in. wide . . «8 «6 « «© “Sn Guanimouns 
1. §S. graminoides, Lamark. Strout BLur-Eyep Grass. A common 
species in damp grassy soil. Flower stem somewhat flattened, branching, 
one branch shorter than the other. Leaves broad grass-like. Plant 8 to 
20 in. high. 
2. §. atlanticum, Bicknell. (Fig. 2, pl. 16.) EASTERN BLUE-EYED 
Grass. Less common than No, 1. Stem and leaves very narrow, whole 
plant slender. Stem branching, 8 to 24 in. high. Generally growing in 
tufts. Umbel often many flowered. In moist fields throughout our region, 
but mostly in the Eastern part. May-June. 
3. §. angustifolium, Mill. (Fig. 1, pl. 16.) Porntep BLUE-EYED 
Grass.. Stem flat, two edged. Leaves about 1/12 in. wide and from 3 to 
16 in. high. Umbel few flowered, subtended by a long bract which ex- 
tends considerably above the flowers and a second very inconspicuous 
bract. In moist meadows. Common. June-Aug. 
4. §. mucronatum, Michx. Micuavux’s Biur-ryep Grass. Growing 
more in tufts than the last; stem and leaves much more delicate and 
slender, from ‘thread-like to 1/15 in. wide. Stems with very narrow wings 
on margins. Leaves often as long as flower stems. The outer long bract 
at the base of the umbel 4 to 24 in. long, often bright purple; the inner 
bract about 1 in. or less in length. Flowers deep violet-blue. Meadows 
and fields, New Jersey and westward. May-June. 
5. §. intermedium, Bicknell. INTERMEDIATE BLUE-EYED GRASS. Grow- 
ing in tufts, stems 4 to 16 in. high, slender, simple or branched above 
into two long flower stems. Leaves nearly 1/8 in. wide. Stem very flat, 
the wings very finely notched. Flower stem usually shorter than the leaf 
situated just below the branching (2 to 3} in. long). Outer bract below 
the little umbel of flowers tapering to a very slender point, 1 to 24 in. 
long, usually purple. Flowers 2 to 6, pale blue. Southern New Jersey 
and southward. May-June. ; 
