niinal, longer than the leaves, 3-4 inches long-, erect; filiform 

 pedicels 1 inch long, many; petals lead-colored, oval, iJ^ lines 

 long, white margined ; hoods cuneate-obovate, as long as the 

 ptamens, corners produced into filiform horns as long as and 

 the same in appearance as the horns whicfi are conspicuous; 

 hoods 1 line long. Pastorilla, Zacatacas, Mexico, May 2, 1892. 



Asclepias Jaliscana n. sp. 



Shruby at base, 2 feet . high, slender, paniculately 

 branched ; leaves linear-acuminate. 2-3 inches long, l-nerved, 

 'arger, above 2 lines wide, green 



1 inch long in flower and 3 inches long in fruit; pedicels 6 lines 

 long, many, filiform; petals lead-purple, with white margins, 

 elliptical, i>4 lines long; hoods at least white-tipped, narrow, 

 nearly linear, rounded at tip, with involute tip 1 line long, bare- 

 ly surpassing the stamens: horn very long and filiform. 1 line 

 long; pods fusiform, 4 inches long, erect on an erect pedicel, 

 smooth. Chiquilistlan. Jalisco, Mexico, May 28, 1892. 



Asclepias senecionifolia sp. 



Stems very short and ascending, 3-4 inches long: leaves 

 many, alternate, linear, revolute, canescent below, 2 inches 

 long; peduncles sub-scapiform, 4-5 inches long, several, slen- 

 der; pedicels 10 Hnes long, filiform, pubescent, many; petals 

 lead-colored, oval, with white and hyaline margins, 1>< lines 

 long; column none; hoods very thick, yellowish, boat-shaped 

 sessile, a little longer than the stamens, tip rounded, sides in- 

 volute, and produced at tip into broad-triangular teeth sur- 

 passing the hood ; horn stout, thick and conspicuous. Santa 

 Cruz, Jalisco, near Tapalpa, Mexico, June 14, 1892. 



Asclepias contstricta n. sp. 



The erect stems stout and mostly simple, about 2 feet 

 high, nearly glabrous; pedicels and peduncles shortly- 

 pubescent; under side of leaves lighter colored, leaves oppo- 

 site, on stout petioles 6 lines long, blade oval to narrowly ob- 

 long, and apiculate, 3-5 inches long, 1^ to 23^ inches wide, 

 with many ascending veins; peduncles in the upper axils, 1-2 

 inches long, filiform pedicels 8 lines long, many; flowers 

 small, white; sepals linear, 1,^^ lines long: petals white, nearly 

 oval, 2 lines long; column manifest; hoods yellowish, on a 

 stalk half as long as the anthers, ovate-oblong, with an almost 

 cordate base, tip rounded and flat, surpassing the stamens by 



