288 MILKWEED FAMILY. 



* « Flowers pink or light rose-purple; leaves all opposite ; pods naked. 

 A. incarnata, Linn. Wet grounds ; very leafy, branching stems, 

 lanceolate or lance-oblong acute leaves, often slightly heart-shaped at the 

 base ; smooth or smoothish, or in var. pdlchra, pubescent and the leaves 

 very short-petioled. 



* « » Floicers dull purplish, greenish, or ichite. 



•»- Stems branching, almost rooodij at base; leaves all opposite; pods 

 naked. 



A. per^nnis, Walt. Nearly smooth ; leaves lanceolate or lance-ovate, 

 slender-petioled ; liowers small, white; seeds mostly without a tuft. 

 S. Ind. and S. 



■>- H- Stems simple ; leaves all opposite and closely sessile or clasping by a 



heart-shaped base, the apex rounded or notched; plants smooth, pale or 



glaucous ; pods naked. 



A. obtusif61ia, Michx. 2^-3° high, the rather remote, broadly oblong 

 leaves wavy ; umbel mostly solitary, long-peduncled ; flowers pretty 

 large, greenish-purplish. Sandy soils. 



A. amplexicatilis, Michx. Dry barrens N. Car., S. ; stems reclining, 

 l°-2° high, very leafy ; leaves ovate-heart-shaped ; umbels several, short- 

 peduncled ; corolla ash-colored, the hoods white. 

 4_ 4- .^_ Stems simple or nearly so, leafy to the top; leaves all opposite, 



ovate, oval, or oblong , pretty large, short-petioled; umbels lateral and 



terminal ; flowers J' long or nearly so. 



-w Pods beset icith soft prickle-shaped or icarty projections. 



A. Corntiti, Decaisne. Common Milkwekd of fields and low grounds 

 N. ; downy, or the large pale leaves soon smooth above ; flowers dull 

 greenish-purplish. 



■w- ++ Pods even, hut usually minutely downy. 



A. phytolaccoides. Pursh. Pokk Mimvweed. Moist grounds N. and 

 W., S. to Ga. ; smooth or smoothish, 3^-5° high ; leaves large, pointed or 

 acute at both ends ; umbels loose, the long pedicels (l'-3') equaling the 

 peduncle ; corolla greenish, but the more conspicuous hoods white. 



A. purpurascens, Linn. l°-3°liigh, leaves downy beneath, smooth 

 above, the upper taper-pointed ; pedicels of the rather loose umbel shorter 

 than the peduncle ; corolla dark dull purple. Dry ground, N. Eng. W. 

 and S. 



A. varieg^ta, Linn. l°-2° high, nearly smooth ; leaves oval or obo- 

 vate, slightly wavy ; peduncle and crowded pedicels short and downy ; 

 corolla white, the hoods purplish. Dry woods, N. Y., W. and S. 

 ^_ .,_ H_ ^_ Steins simple or rarely branched, slender; most of the leaves 



in whorls ; pods .slender and naked; flowers small, ichite or ichitish. 



A. quadrif61ia, Linn. Stems l--2° high, nearly smooth, naked below, 

 bearing about the middle one or two whorls of 4 ovate or lance-ovate 

 taper-pointed petioled leaves, and beneath or above them usually a pair 

 of smaller ones ; pedicels slender ; corolla mostly tinged with pink, the 

 hoods white. Woods and hills, X. Eng., W. and S. 



A. verticillata, Linn. Dry ground ; P-2° high, smoothish ; stems 

 very leafy throughout ; leaves very narrow, linear or thread-shaped, in 

 whorls of 3-C ; flov/ers greenish-white. 



2. ASCLEPIODORA. (Name made from A sclepias.) '21 



A. viridis, (iray. Smoothish, P high; leaves alternate, oblong or 

 lance-oblong; flowers 1' broad, green, the hoods purplish, in loose ter- 



