GENUS 9. 



POTATO FAMILY. 



169 



nally dehiscent. Ovary 2-celled; style slender; stigma capitate. Capsule 2-celled, circum- 

 scissile above the middle. [Greek, hog-bean.] 



About 15 species, natives of the Mediterranean region, the following typical. 



i. Hyoscyamus niger L. Black Hen- 

 bane. Hog's-bean. Fig. 3728. 



Hyoscyamus niger L. Sp. PI. 179. 1753. 



Annual or biennial, villous and viscid, of 

 an ill odor; stem stout, i-2i high. Leaves 

 ovate, lanceolate, or oblong in outline, 3' -7' 

 long, acute or acuminate at the apex, sessile, 

 or the upper clasping the stem, irregularly 

 lobed, cleft or pinnatifid; flowers very short- 

 pedicelled, i'-2' broad ; calyx-lobes triangular- 

 ovate, acute ; corolla greenish-yellow, strongly 

 reticulated with purple veins, its lobes ovate, 

 obtusish; capsule globose-oblong, about 5" 

 high. 



In waste places, Nova Scotia to Ontario, New 

 York and Michigan. Naturalized from Europe. 

 Fetid nightshade. Insane-root. Belene. Chenile. 

 Poison-tobacco. June-Sept. 



10. DATURA L. Sp. PI. 179. 1753. 



Annual or perennial erect tall branching 

 narcotic herbs, some tropical species shrubs 

 or trees, with alternate petioled entire sinuate- 

 dentate or lobed leaves, and large solitary erect 

 short-peduncled white purple or violet flow- 

 ers. Calyx elongated-tubular or prismatic, its 

 apex S-cleft or spathe-like, in the following species circumscissile near the base which is per- 

 sistent and subtends the globose ovoid prickly capsule. Corolla funnelform, the limb plaited, 

 S-lobed, the lobes broad, acuminate. Stamens included or little exserted; filaments filiform, 

 very long, inserted at or below the middle of the corolla-tube. Ovary 2-celled, or falsely 

 4-celled; style filiform; stigma slightly 2-lobed. Capsule 4-valved from the top, or bursting 

 irregularly. [The Hindoo name, dhatura.] 



About 12 species, of wide geographic distribution. Type species: Datura Stramonium L. 

 The following are introduced weeds. 



Glabrous or very sparingly pubescent; leaves lobed, calyx prismatic. i. D. Stramonium. 



Finely glandular-pubescent ; leaves entire or undulate ; calyx tubular. 2. D. Metel. 



i. Datura Stramonium L. Stramonium. 



Jamestown or Jimson-weed. Thorn- 



Apple. Fig. 3729. 



Datura Stramonium L. Sp. PI. 179. 1753. 

 Datura Tatula L. Sp. PI. Ed. 2, 256. 1762. 



Annual, glabrous or the young parts spar- 

 ingly pubescent ; stem green to purple, stout, 

 i-5 high. Leaves thin, ovate in outline, acute 

 or acuminate at the apex, mostly narrowed at 

 the base, 3'-8' long, irregularly sinuate-lobed, 

 the lobes acute; petioles i'-4' long; flowers 

 white or violet, about 4' high, the limb i-T-2' 

 broad ; calyx prismatic, less than one-half the 

 length of the corolla; capsule ovoid, densely 

 prickly, about 2' high, the lower prickles shorter 

 than the upper or all about equal. 



In fields and waste places, Nova Scotia to Flor- 

 ida, west to Minnesota and Texas. Naturalized 

 from tropical regions. June Sept. Peru-, mad- 

 or devil's-apple. Devil's-trumpet. Jamestown-lily. 

 Fire-weed. Dewtry. Races differ in color of 

 flowers and in length of the prickles on the pods. 



