SALICACE^. 319 



1. SALIX. Linn.— Willow. 

 (From the Celtic sal, near, and Us, water; a tree that grows near water.) 



Dioecious. Ament cylindric. Perianth none. Sterile Fl- 

 Stamens mostly 2, but often 3 — 5. Fertile Fl. Ovary with 

 a gland at the base. Stigmas 2, often cleft. 



* Leaves entire or obscurely serrate. 



1. S. viminalis Linn. : leaves linear- lanceolatej very long- acuminate, 

 nearly entire, somewhat undulate, white-silky beneath ; stipules very small, 

 sublanceolate ; aments appearing before the leaves ; scales roundish, very 

 hairy ; ovary sessile, ovoid ; style filiform ; stigmas linear, acute, undivided. 



Banks of streams. N. S. April, May — A middle-sized tree, ^ronc/jes slen- 

 der and flexile. Filamenis yellow. Anthers orange. Introduced from Europe. 



Osier. Basket-willow. 



2. S. Candida Wilkl. : leaves lanceolate or linear-lanceolate, acute, ob- 

 scurely toothed at the point, pubescent above, white-tomentose beneath, 

 with the margin revolute ; stipules lunate, small ; aments appearing before 

 the leaves, cyhndric ; scales obovate, obtuse, brown, clothed with long 

 hairs. S. incana Mich. 



Sha:dy woods. N. Y. and Penn. N. to Arct. Amer. April, May. T7. — Stein 

 5 or 6 feet high, with reddish twigs. Aments about an inch long, on short 

 peduncles. White-leaved Willoto. 



3. S. Muhlenbergiana Barratt : leaves obovate-lanceolate, entiye or re- 

 motely toothed, mostly acute, even, smoothish above, grayish-tomentose 

 beneath ; stipules semiovate or lunate ; aments ovoid-cyhndric, densely 

 flowered ; ovary lanceolate, with a long beak ; stigma 2-cleft. S. cmii- 

 fera Willd. and S. recurvata Pursh. 



Dry woods. Can. to Car. April. T7. — Stem. 4 — 8 feet high, with brittle 

 grayish twigs. Leaves distinctly veined, the margin sometimes a little waved. 

 Aments about an inch long. Filaments white. Anthers yellow. 



MuJdenberg's Willow. 



4. (S. tristis Ait. : leaves narrow-cuneate, oblanceolate, acute at each end, 

 nearly entire, revolute, smoothish above, rugosely veined and tomentose be- 

 neath; stipules none or caducous ; aments globose-ovoid, appearing before 

 the leaves; scales roundish-obovate ; stigmas 2-cleft; capsules with a long 

 beak. S. longirostris Mich. 



Sandy woods. N. Y. to Car. March, April. T^. — Stem 2 or 3 feet high, 

 sometimes procumbent. Aments numerous, 4 — 6-lines long. Anthers at length 

 yellow. The most dwarfish of our lowland species. Dwarf Downy Willow. 



5. S. pedicellaris Pursh : branches smooth ; leaves obovate-lanceolate, 

 rather acute, very entire, smooth and of the same color on both sides ; 

 stipules none ; aments appearing with the leaves, pedunculate, very smooth ; 

 scales oblong, half the length of the pedicel, scarcely hairy ; stamens 2 ; 

 ovary ovoid-oblong ; style short ; stigmas 2-cleft. 



Sphagnous swamps. Catskill mountains, N. Y. Pursh. • Near Oriskany, 

 Oneida county. Lodi, Seneca county, N. Y. Torr. New Eng. Tuckermann. 

 May. \i — Stem ascending, virgate, 1 — 3 feet high, the bark smooth and brown- 



