HOFFMANN: FLORA OF BERKSHIRE COUNTY. 245 
NARCISSUS. 
N. POETicus L. Poet's Narcissus. — A single plant in a mowing 
field, across the road from an abandoned house, Alford (Walters). 
IRIDACEAE. IRIS FAMILY. 
IRIS. Fleur-de-lis. 
I. versicolor L. Blue Flag. — Wet meadows, borders of streams 
and ponds, wet open hillsides; common. Altitude 2000 feet, Mt. 
Washington. 
SISYRINCHIUM. Blue-eyed Grass. 
Key to Sisyrinchium. 
a. Spathes sessile, terminal and solitary. 
Pedicels loosely spreading, much exceeding the inner bract; capsules 2 to 
4 mm. high. Rare S. mucronahwi . 
Pedicels suberect, scarcely exceeding the inner bract; capsules 4 to 6 mm. 
high. Common S. angustifolium . 
a'. Spathes peduncled from the axil of the leaf-like bract. 
b. Inner bract of the spathe 1.5 to 3 cm. long; stems broadly winged. 
Pedicels loosely spreading, much exceeding the inner bract. 
S. gramineum. 
Pedicels strongly ascending, rarelj' exceeding the inner bract. 
5. angustifoliutn. 
b'. Inner bract of the spathe 1 to 1.5 cm. long; stems slender and narrowly 
margined S. ailanticum . 
S. angustifolium Mill. — ISIeadows and open places in woods; 
comiHon. 
S. atianticum Bickncll. — Low meadows, borders of bogs and 
swamps; frequent on the plateau, occasional in the valley (Pittsfield, 
Stockbri(lge). 
S. gramineum ("urtis. — (S. (iraminoidrs 111. Fl. ed. 2.) 
Meadows and fields; common. 
S. mucronatum Michx. — Meadow, Cheshire Harbor (Cushnuin); 
sandy field, Sheffield (Fernald). 
ORCHIDACEAE. ORCHID FAMILY. 
ARETHUSA. 
A. bulbosa L. .Vui.rin's.A.. — Open bogs; occasional in tlic south- 
ern part oi' tJK County. Wai-d Pond, nccUcl ; Minitcrcy (Walters); 
