MILKWEED FAMILY. 675 



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

 County, 800 feet. Bibb, Montgomery, and Mobile counties. Frequent; most com- 

 mon on dry pine ridges. 



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

 States Pharmacopeia. 



Type locality: "Hab. in America boreali." 



Herb. Geol. Surv. Herb. Mohr. 



Asclepias lanceolata Walt. Fl. Car. 105. 1788. SPARSELY FLOWERED MILKWEED. 



Asclepias paupercula 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 : 90. 

 Coulter, Contr. Nat. Herb. 2 : 265. 



Carolinian and Louisianiau areas. Coast of New Jersey to Florida, west to Texas. 



ALABAMA: Lower Pine region. Coast plain. Boggy pine barrens, river marshes. 

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

 ion-orange, May, June; frequent. 



Type locality : South Carolina. 



Herb. Geol. Surv. Herb. Mohr. 



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



OBTUSE-LEAVED MILKWEED. 



Asclepias purpurascens Walt. Fl. Car. 105. 1788. Not L. 



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

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



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

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



ALABAMA : Mountain region to Coast plain. Dry borders of fields and woods. Clay 

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

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



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



Herb. Geol. Surv. Herb. Mohr. 



Asclepias humistrata Walt. 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 region near the coast. Dry pine ridges. Mobile and Bald- 

 win counties. Flowers pale pink, greenish; April, May ; fragrant. Frequent. Stems 

 decumbent, 2 to 3 feet long. 



Type locality : South Carolina. 



Herb. Geol. Surv. Herb. Mohr. 



Asclepias variegata L. Sp. PL 1 : 215. 1753. VARIEGATED MILKWEED. 



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

 pt. 1 : 93. 



Carolinian and Louisianian areas. Virginia, southern Ohio, Missouri, Arkansas, 

 south to Florida, west to Louisiana. 



ALABAMA: Scattered over the State. Dry open places, borders of fields. Lee 

 County, Auburn ( Baker 4'- Earle] . Lauderdale, Cullman, Clarke, and Mobile counties. 

 Flowers white, with purplish center; May. Nowhere abundant. 



Type locality : " Hab. in America boreali." 



Herb. Geol. Surv. Herb. Mohr. 



Asclepias obovata Ell. Sk. 1 : 321. 1817. OBOVATE-LEAVED MILKWEED. 



Ell. Sk. 1. c. Chap. Fl. 363. Gray, Syn. Fl. N. A. 2, pt. 1 : 95. 



Louisianian area. South Carolina to Florida. 



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

 gravelly light soil. Autauga County (E. A. Smith}. Montgomery County. Mobile 

 County, open pine woods near Springhill. Baldwin County. Dallas County, Marion 

 .Junction. 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, t. 33. 1767. FOUR-LEAVED MILKWEED. 



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

 1 : 96. 



Alleghenian and Carolinian areas. Ontario; New England west to Wisconsin, 

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

 to Georgia. 



