HOFFMANN: FLORA OF BERKSHIRE COUNTY. 251 
S. FRAGiLis L. Crack ^Villow. — Borders of streams; occasional. 
Adams (Knowlton and Bean); Great Barrington (Cushman); Egre- 
mont. 
S. humilis Marsh. — Dry open woods and sandy soil; common. 
Altitude 1900 feet, Florida. 
S. lucida Muhl. Shining \Yillow. — Borders of swamps, shores 
of lakes and streams, wet roadsides; common. 
var. angustifolia Anders. — Marsh on Hancock Mt. (altitude 
2000 feet) . The only known station for the State. 
var. intonsa Fernald. — Williamstown. 
S. nigra Marsh. Black Willow. — Borders of ponds and along 
streams; common in the valley. 
var. falcata (Pursh) Torr. — Occasional with the type. 
S. pedicellaris Pursh, var. hypoglauca Fernald. — (S. pedicel- 
laris Man. ed. 7 in part; vid. Rhodora, 11: 161, 1909.) 
Open bogs; frequent. 
Leaves green above, glaucous beneath. S. pedicellaris has leaves 
green on both surfaces. 
S. PENTANDRA L.— Occasionally escaped from cultivation. Stock- 
bridge; Great Barrington. 
S. petiolaris Sni. — Low ground; frequent. 
S. PURPUREA L. Purple Willow. — Occasionally naturalized 
along brooks; Williamstown; Richmond; Stockbridge; Sheffield. 
S. rostrata Richards. Beaked Willow. — Borders of swamps or 
dry thickets; common. On the plateau forming with S. cordatn and 
S. discolor thickets along the roadsides. A form from Great Barring- 
ton with capsules partially or completely doubled. 
S. sericea Marsh. Silky Willow. — • Bortlers of swamps, along 
streams and in low ground; conunon. 
S. serissima (Bailey) Fernald. — Swamps, in calcareous soil; fre- 
quent in the southern j)art of the valley, from Richmond and Stock- 
bridge to She/Held. 
S. subsericea (Anders.) Schneider. — Hinsdale. 
Similar to S. petiolaris. Leaves loosely sericeous when young, at 
length glabrate except the puberulent midrib above, rather coarsely 
appressed-serrate ; winter buds jjubcrulent; scales oblong, with 
rounded blackish fips; capsule lance-conic, blunt, loosi-ly silky, 5 to 
7 mm. long, its ix'dicel many times excei-diug the gland. }'i(l. Rho- 
dora, 11: 12 (1909). 
