190 
rlgida, 
petiolaris. 
DIOECIA, DIANDRIA. 
remotely-serrated, very entire at tlie apex, glau- 
cous beneath ; stipules deciduous, lanceolate, 
serrated ; aments appearing nearly at tiie same 
time with the leaves, diandrous, oblong, tomen- 
tose ; scales oblong, acute, witii black hairs ; 
germs siibsessile, lanceolate, tomentose; style 
of moderate size j stigmas biparted. — TVilld. and 
FursJu 
Icon. Muhl. in annals of Bot. £. t. 5. 
Red-rooted Willow. 
In low swampy grounds, nine miles south-west of Philadel- 
phia, not unfrequent. The twigs are tough and used for mak- 
ing baskets. I2 . April. 
ft f Leaves thick and acute, serrated. 
* Triandrous. 
4. S. leaves oblong-lanceolate, acuminate, base 
subcordate, rigid, glabrous, narrowly serrated ; 
serratures elongated below ; petioles villous ; 
stipules large, cordate, obtuse, glandular-ser- 
rated ; aments appearing with the leaves, sub- 
S-androus ; scales lanceolate, covered with black 
wool ; germs on long pedicels, lanceolate, 
smooth ; style very short ; stigmas biparted. — 
Willd. and Piirsh. 
5. cordata, Mich., not Muhl. 
S. cordifolia, Herb. Banks, Mss. (Pursh.) 
Stiff-leaved Willorv. 
In swampy hedges, on low grounds, two miles below Phila- 
delphia, not far from the Chester road. Also used for making 
baskets. . April. 
* * Diandrous. 
5. S. leaves lanceolate, every where serrated, 
smooth, glaucous-silky beneath, generally un- 
equal at the base ; stipules ternate, dentated, 
small ; aments appearing before the leaves; 
