MILKWEED FAMILY. 675 



Alabama : Over the State. Dry siliceous soil, borders of woods, fields. Cullman 

 County, 800 feet. Bibli, Moutgouiery, and Mobile counties. Frequent; most com- 

 mon on dr^' pine rid<ies. 



Economic uses: The root is the "pleurisy roof or "Asclepias" of the United 

 States rharmacoiia'ia. 



Type locality: "Hab. in America boreali." 



Herb. Geol. Surv. Herl). Mohr. 



Asclepias lauceolata Walt. Fl. Car. 105. 1788. Sparsely flowered Milkweed. 



Asdepias paupercuJa Michx. Fl. Bor. Am. 1 : 118. 1803. 



Ell Sk. 1 : 323. Gray, Man. ed. 6, 340. Chap. Fl. 363. Gray, Syn. FL N. A. 2, pt. 1 : 00. 

 Coulter, Contr. Nat. Herb. 2 : 26.5. 



Carcdiuian and Louisiauian areas. Coast of New Jersey to Florida, west to Texas. 



Alabama: Lower Piue rej^ion. Coast plain. Boggy pine barrens, river marshes. 

 Washington County, Yellowpine. Baldwin and Mobile counties. Flowers vermil- 

 ion-orange. May, June; frecjueut. 



Type locality: South Carolina. 



Herb. Geol. Surv. Herb. Mohr. 



Asclepias obtusifolia Michx. Fl. Bor. Am. 1:115. 1803. 



Obtuse-leaved Milkweed. 



Aaclepiaa purpurascena Walt. Fl. Car. 105. 1788. Not L. 



Ell. Sk. 1:321. Grav, Man. ed. 6, 341. Chap. Fl. 364. Gray, Syn. Fl. N. A. 2, pt. 1 : 91. 

 Coulter, Contr. Nat. Herb. 2 :266. 



Allegheuian to Louisianian area. New England west to Dakota, Nebraska, Mis- 

 souri, and Colorado, and from New York to Florida, Texas, aud Arkansas. 



Alabama : ilonntain I'egiou to Coast ])lain. Dry borders of iields and woods. Clay 

 County, near Ironaton, 1,200 feet. Bilib, St. Clair, and Baldwin counties. Lee 

 County, Auburn. Mobile County. Flowers pink, June. Not infrequent. 



Type locality : "Hab. a Virginia ad Caroliaam." 



Herb. Geol. Surv. Herb. Mohr. 



Asclepias humistrata AValt. Fl. Car. 105. 1788. Rabbit's Milkweed. 



Asclepias amplexicaulis Michx. Fl. Bor. Am. 1 : 115. 1803. 



Ell. Sk. 1:322. Chap. Fl. 364. Gray, Syn. Fl. N. A. 2, pt. 1 :92. 



Louisianian area. North Carolina to Florida, west to Mississippi. 



Alabama: Lower Pine reginu near the coast. Dry pine ridges. Mobile and Bald- 

 win counties. Flowers pale piuk, greenish; April, May; fragrant. Frecjueut. Stems 

 decumbent, 2 to 3 feet long. 



Type locality: South Carolina. 



Herb. Geol. Surv. Herb. Mohr. 



Asclepias variegata L. Sp. PI. 1 : 215. 1753. Variegated Milkweed. 



Ell. Sk. 1:324. Grav, Man. ed. 6, 342. Chap. Fl. 362. Gray, Syn. Fl. N. A. 2, 

 pt. 1 : 03. 



(Jarolinian and Louisianian areas. Virginia, southern Ohio, Missouri, Arkansas, 

 south to Florida, west to Louisiaua. 



Alabama: Scattered over the State. Dry open places, borders of tields. Lee 

 County, Auburn ( Baker .('• EarU}. Lauderdale, Cullman, Clarke, aud Mobile counties. 

 Flowers white, with pur])lish center ; May. Nowhere abundant. 



Type locality : " Hab. in America boreali." 



Herb. Geol. Surv. Herb. Mohr. 



Asclepias obovata Ell. Sk. 1:321. 1817. Obovate-leaVed Mi]>Kwr.ED. 



Ell. Sk. 1. c. Chap. Fl. 363. Gray, Syn. Fl. N. A. 2, pt. 1 : 05. 



Louisianiau area. South Carolina to Florida. 



Alabama: Central Prairie region to Lower Pine region. Open woods, pastures, 

 gravelly liglit soil. Autauga Conwty (I'^. A. Smith). Montgomery County, ^lobile 

 County, open pine woods near Spriughill. Baldwin County. I )allas County, Marion 

 . I unction. Flowers greenish, purplish tinged, June to August. Not infrequent; 

 most frequently met with on the bald prairies. 



Type locality : "Louisville, Georgia." 



Herb. Geol. Surv. Herb. Mohr. 



Asclepias quadrifolia Jacq. Obs. pt. 2, 8, «. 55. 1767. Four-leaved Milkweed. 



Ell. Sk. 1:319. Gray, Man. ed. 6, 342. Chap. Fi. 364. Gray, Syn. Fl. N. A. 2, pt. 

 1 : 96. 



Allegheuian and Carolinian areas. f)ntario; New England west to Wisconsin, 

 Ohio Valley to Missouri and Arkansas, and south from New York along the mountains 

 to Georgia. 



