WILLOW FAMILY. 465 



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



CAROLINA POPLAR. BIG COTTONWOOD. 



Populus carolinensis Moenoh. Verz. PI. 81. 1785. 



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



P. anf/ulata Ait. Hort. Kew. 3 : 407. 1789. 



P. an'gulosa Michx. Fl. Bor. Am. 2 : 243. 1803. 



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

 Herb. 2 : 420. Sargent, Silv. N. A. 9 : 179, t. 494, 495. 



Alleghenian to Louisianian 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 rivers. 



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. 489. 



Carolinian and Louisianian 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 Vernou. 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. 

 Type 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. 



Salix 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, t. 462. 



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



Gray, Man. ed. 6, 481. Britt. & Br. 111. Fl. 1 : 495, /. 1174. 



Carolinian and Louisianian 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. 



Alleghenian to Louisianian 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 



