WILLOW FAMILY. 465 



Populus deltoides Marsh. Arb. Am. 106. 1785, 



Carolina Poplar. Big Cottonwood. 



Populus carolinensis Moench. Verz. PL 81. 1785. 



P. monilifera Ait. Hort. Kew. 3 : 406. 1789. 



P. anqufata Ait. Hort. Kew. 3 : 407. 1789. 



P. angulosa Michs. FL Bor. Am. 2 : 243. 1803. 



EH. Sk. 2:711. Gray, Man. ed. 6, 487. Chap. FL 431. Coulter, Contr. Nat. 

 Herb. 2 : 420. Sargent, Silv. N. A. 9 : 179, t. 404, 495. 



AUeghenian to Louisiauian area. Ontario west to the eastern base of the Rocky 

 Mountains ; New England west to Minnesota, Colorado, and Nevada, south to Florida 

 and western Texas. 



Alabama : Tennessee Valley to the coast. Most frequent in alluvial swamps on 

 the lower Alabama and Tombigbee riveis. 



Economic uses: A timber tree. 



Type locality : North America. 



Herb. Mohr. 



Populus heterophylla L. Sp. PI. 2 : 1034. 1753. 



Swamp Cottonwood. Black Cottonwood. 



Ell. Sk. 2:712. Gray, Man. ed. 6, 487. Chap. Fl. 431. Sargent, Silv. N. A. 

 9 : 163, t. iS9. 



Carolinian and Louisiauian areas. Southern New England, Ohio Valley, Tennes- 

 see, Missouri, to Florida and western Louisiana. 



Alabama : Chiefly bottoms, margins of swampy forests. Montgomery and Clarke 

 counties. Mobile County, Mount Vernon. Baldwin County, Stockton. Flowers 

 middle of February. 



Economic uses : Timber tree. 



Type locality : "Hab. in Virginia." 



Herb. Mohr. 



Populus alba L. Sp. PI. 2 : 1034. 1753. Silver-leaf Poplar. 



Gray, Man. ed. 6, 486. Chap. Fl. 431. 



Introduced and escaped from cultivation through the State. Mobile County. 

 Tyi^e locality: "Hab. in Europa temperatiori." 



SALIX L. Sp. PL 2 : 1015. 1753. Willow. 



One hundred and sixty species, cooler and temperate zones of Northern Hemi- 

 sphere. Trees and shrubs. 



Salix nigra Marsh. Arb. Am. 139. 1785. Black Willow. 



Saltx caroliniana Michx. Fl. Bor. Am. 2 : 226. 1803. 



Ell. Sk. 2 : 670. Gray, Man. ed. 6. 480. Chap. Fl. 430. Coulter, Contr. Nat. Herb. 

 2 : 419. Wats. Bot. Calif. 2 : 83. Sargent, Silv. N. A. 9 : 103, /, 46:?. 



AUeghenian and Carolinian areas. Throughout eastern North America to Florida, 

 and west to Texas, Nebraska, Colorado, Arizona, and California. 



Alabama: All over the State. Wet banks of streams, lakes, ponds. Flowers in 

 April. 



Economic uses: Of some value for its wood. The bark, as "black willow bark," 

 is used medicinally. 



Type locality : North America. 



Herb. Mohr. 



Salix wardi Bebb, Gard. & For. 8 : 363. 1895. Ward's Willow. 



Salix nifjra var. wardi Bebb in Ward, Bull. U. S. Nat. Mus. 22 : 114. 1881. 



Gray, Man. ed. 6, 481. Britt. & Br. 111. Fl. 1 : 49.5, /. 1174. 



Carolinian and Louisiauian areas. District of Columbia west to Missouri, south 

 to western Florida and Indian Territory. 



Alabama : Tennessee Valley. So far only known from Lauderdale County in the 

 river hills on gravelly banks of streams. 



Type locality: "First met with among the rocks on the river bottom adjacent to 

 the Chain Bridge and Little Falls [Potomac River, D. C.]." 



Herb. Mohr. 



Salix cordata Muhl. ; Willd. Neue Schrift. Gesell. Nat. Fr. Berlin 4:236, t. 6, f. 3. 



1803. Heart-leaf Willow. 



AUeghenian to Louisiauian area. New Brunswick to British Columbia, south to 

 Virginia, west to Missouri, Colorado, and California. 



Alabama: Central Prairie region. Low banks of water courses. Butler County, 



15894 30 



