204 STATE HORTICULTUEAL SOCIETY 



2631. A. purpurascens, L. Purple Milkweed. 

 Not common. 



2632. A. incarnata, L. Swamp Milkweed. 

 Common in swamps and wet meadows. 



2633. A. sullivantii, Engelm. Sullivant's Milkweed. 

 Prairies, infrequent. 



2634. A. emplexicaulis, J. E. Smith. Blunt-leaved Milkweed. 

 Sandy soil, frequent. 



2635. A. meadii, Torr. Mead's Milkweed. 

 Infrequent. 



2636. A. exalta, (L.) Muhl. Tall Milkweed. 

 In thickets; not common. 



2637. A. quadrifolia, Jacq. Four-leaved Milkweed. 

 Dry woods, not common. 



2638. A. syriaca, L. Common Milkweed. 

 In open and waste places. Common. 



2639. A. speciosa, Torr. Showy Milkweed. 

 Not common. 



2640. A. ovalifolia, Dec. Oval-leaved Milkweed. 

 Infrequent. 



2641. A. verticillata, L. Whorled Milkweed. 

 Common on dry prairies. 



2642. A. decumbens, L. Decumbent Butterfly-weed. 

 Dry fields, not common. 



ACERATES, Ell. 



2643. A. viridiflora, (Raf.) Eaton. Green Milkweed. 

 Dry prairies, common. 



2644. A. floridana, (Lam.) Hitchc. Florida Milkweed. 

 Common. 



2645. A. lanuginosa, (Nutt.) Dec. Wooly Milkweed. 

 Not infrequent. 



CONVOLVULACE^:. MORNING-GLORY FAMILY. 



BREWERIA, E. Br. 



2646. B. pickeringii, (M. A. Curtis) A. Gray. Pickering's 



Breweria. 

 In sandy soil. 



