IRIS FAMILY 143 
others. Flowers subtended by conspicuous leaf-like bracts. 
Stamens 3, opposite the outer segments of the perianth. 
Segments of perianth in two unequal series . . . . Iris 
Segments of perianth equal. 
Flowers orange BME) ee bela s ae Ven ay GenEMIn ong) 
Ma wercnDitte . asics 4a (Me ware Ga SISyriichium 
Tt. ERs, £: 
Three inner segments of the perianth curved outward, narrower than 
the others. Outer segments more erect but curved inward. The 3 di- 
visions of the style are flattened and colored, resembling petals, the stigmas 
being on the under (outer) side of the generally 2 lipped style. 
SRERDCOMOMIT wip lence so st Se eu cov wlhunss gierehcuent ty eM cas I, verna 
Sei Bewey Gool, Wie so eo oa) Go cy 8 Go sO oF oa ie lacustris 
Stems from 1 to 2 ft, high. 
Moyne SellOny 5 5 MG oO 6 so my GF io 46 of deen oF Go dG Paihia anG 
Flowers blue. 
Leaves sword-shaped . & 96, "OG G6 6 Gg) Bo VE GbraTaa irr 
Leaves narrow, grass- like. 
Flower pedicel shorter than the bracts subtending it . J. Hookeri 
Flower pedicel much Ione eee ak levies WR I 
ftanor more high) 3) 3 - . JL. prismatica 
ele versicolor, iy (Hig: 3; ‘i 16.) ee BLuE Frac. Stems 
1 to 3 ft. high. Leaves shorter than the stem, $ to 1 in. wide. Bract 
longer than the flower stem. Flowers blue, with yellow, green and white. 
The common blue flag along borders of springs and in moist places, May- 
July. 
2. I. pseudacorus, L. YELLow Frac. Leaves sword-like. Stems 13 
to 3 ft. high. The only native or naturalized species with yellow flowers. 
Not common. Marshy places. Introduced from Europe. May-July. 
3. I. Hookeri, Penny. Hooker’s Biur Frac. (JI. setosa, Pall.). 
Leaves grass-like, mostly from the base. Seed capsules nearly egg-shaped 
with 3 obtuse lobes. The bracts below the flowers are as long or longer 
than the pedicel of the flower. Stem 10 to 20 in. high. Banks of 
streams, throughout our area. May-July. 
4. I. verna, L. Dwarr Iris. Stem 1 to 3 in. high, usually 1-flow- 
ered. Leaves narrowly linear. Flowers violet-blue or rarely white. 
Shaded hillsides, S. Penna. and southward. April-May. 
5. I. prismatica, Pursh. SLENDER BLue Frac. Leaves grass-like; 
plant slender. Flowers solitary or two together, the flower on a long 
delicate flower pedicel. Capsule acute at each end. Mostly along the 
eastern coast. May-July. 
6. I. lacustris, Nutt. Dwarr Lake Iris. One of the smallest of the 
genus native in our region. Stem about 5 or 6 in. high. Flowers 1 to 
13 in. long. Leaves as long or longer than the flower stem. A local 
species on the shores of Lake Huron and Lake Superior. May. 
2. GEMMINGIA, Fabricius 
An introduced erect herb, perennial, with leaves resembling the Iris 
