172 SALICACEAE 
tow. Shrub about as high as the last. Leaves dark green, shining above, 
whitish below, broad lance-shaped, 23 in. long, toothed; stipules ear-shaped, 
rather large, persistent. Catkins leafy at base. Dry soil, Maine and 
northward. 
ll. §S. purpurea, L. (Fig. 5, pl. 23a.) Purpre WiLtLow. A small 
tree, escaped from cultivation and seen only rarely as a naturalized 
species. Twigs flexible, long, purple. Leaves lance-shaped but broadest 
toward the apex. The stamens may be 2 in each axil or their different 
filaments may be so united as to form a single stamen. The capsules in 
the pistillate flowers are sessile, 7. e., they have no pedicel or an extremely 
short one. 
12. §. Bebbiana, Sarg. (Fig. 4, pl. 22.) Brss’s Wittow. (VN. 
rostrata, Richards.) Small tree or shrub, 8 to 15 ft. Twigs covered 
with soft down. Leaves egg-shaped, or generally broadest toward the 
apex (pear-shaped), 2 to 3 in. long, dull green above, blue or white be- 
low; borders scarcely notched but uneven, upper surface rather deeply 
and irregularly reticulated between the principal veins. Pistillate flowers, 
the pedicel of the capsule as long as the capsule itself. Moist or dry 
soil, common. 
13. §. discolor, Muhl. (Fig. 6, pl. 23a.) GLaucus WILLow. Pussy 
WILLow. Generally a shrub, but sometimes a small tree. Twigs dark 
reddish purple with silky hairs. Leaves broad lance-shaped or oblong, 
often broadest toward the apex, 3 to 5 in. long; notches remote; bright 
green above, smooth and nearly white beneath. Catkins appear much 
earlier than the leaves. The pedicel of the capsule of pistillate flower 
about 4 to 4 as long as the capsule and style together. Capsule downy. 
Borders of streams, common. 
14. §. eriocephala, Michx. Pussy WitLow. Leaves firm, oblong, the 
borders distinctly toothed; young branches densely hairy. Catkins short 
and dense. Wet places, New England to Penna. and westward. 
15. §. prinoides, Pursh. CHESTNUT OAK WILLOW. Resembles the 
last but young branches are not hairy and catkins are long and loose. 
New York to Virginia. 
16. §. squamata, Rydb. Lona-BracTtED WILLow. Resembles SN. erio- 
cephala but young branches are less hairy, bracts at base of individual 
flowers are longer than the flower pedicel. New Jersey and Pennsylvania. 
17. §. sericea, Marsh. (Fig. 4, pl. 23.) Smxy Wittow. Shrub, 
rarely 10 ft. high, but sometimes about 12 ft. Twigs slender, with fine 
silky hairs. Leaves 2 to 4 in. long, narrow lance-shaped, tapering at 
both ends but somewhat broader toward the base than toward the apex. 
Notches fine and even. Pedicel of capsule less than } as long as capsule 
and style. Capsule downy. Wet places, borders of streams. 
18. §. humilis, Marsh. (Fig. 7, pl. 23a.) Prarrir Wittow. Shrub 
3 to 8 ft. high, with rather broad lance-shaped leaves, the lower even egg- 
shaped, in general broadest toward the apex, 2 to 4 in. long; borders only 
slightly toothed, upper surface dull green, lower gray with hairs. Pedicel 
of capsule about 4 as long as capsule and style. Dry soil. 
19. §. viminalis, L. (Fig. 8, pl. 23a.) Oster Wittow. Shrub, often 
cultivated in rows in low grounds for basket work. Introduced and only 
