solanace;e. 103 



completely divided into 2 by the placentoe being joined to an out- 

 growth from the dorsal sutures of the carpels, so that the capsule 

 appears i-celled, splitting into 4 valves at the apex. Seeds 

 numerous, sub-reniform. 



Plants of various habit, with usually large solitary white, 

 purple, or red flowers. 



There seems to be no classical derivation of the name of this genus of plants. Vfe 

 find it given by various authors as coming from an Arabic name for a plant much 

 resembling it in appearance. 



SPECIES I.— DATURA STRAMONIUM. Linn. 

 Plate DCCCCXXXV. 

 Xeich. Ic. Fl. Germ, et Helv. Vol. XX. Tab. MDCXXIV. 



Annual. Stem herbaceous, simple below, trichotomously or 

 dichotomously branched at the apex, with the branches dichoto- 

 rnous. Leaves ovate-rhomboidal, coarsely and unequally sinuate- 

 dentate with large acute teeth or lobes. Flowers solitary in the 

 forks of the stem and between the uppermost leaves. Fruit erect, 

 subquadrangular - ovoid, clothed with numerous erect subulate- 

 pointed spines. 



Var. a, genuinum. 



D. Stramonium, Linn. Sp. PI. p. 255. 



Stem green. Flowers white. 



Var. 3, Tatula. 



D. Tatula, Linn. Sp. PI. p. 256. 



Stem purplish. Flowers pale-purple. Leaves more abrupt at 

 the base and more strongly toothed than in var. a. 



On manure-heaps, in cultivated ground and waste places, and 

 by roadsides. Scarce, but occurring occasionally throughout Eng- 

 land, but not persistent in its localities. Of var. I have gathered 

 a few specimens between Walmer and Kingsdown, Kent. 



[England.] Perennial. Late Summer and Autumn. 



Stem thick, erect, succulent, 6 inches to 3 feet high, with diva- 

 ricate branches. Leaves unequal, stalked ; the lower ones very 

 large, often 6 to 9 inches long ; upper ones smaller, and often 

 apparently opposite ; all with unequal very acute spreading teeth. 

 Flowers shortly stalked. Calyx pale-green, membranous, tubular, 1\ 

 to 2 inches long, with 5 triangular acuminate teeth at the apex ; and 



