OENTIANACEiE. (GENTIAN FAMILY.) 341 



5. DATtlRA, L. Jamestown-Weed. Thobn- Apple. 



Calyx prismatic, 5-toothed, separating transTersely abore the base in fruit, 

 the upper part falling away. Corolla funnel-form, with a large and spreading 

 5 - 10-toothed plaited border. Stigma 2-lipped. Pod globular, prickly, 4-Talved, 

 2-celled, with 2 thick placenta projected from the axis into the middle of the 

 cells, and connected with the walls by an imperfect false partition, so that the 

 pod is 4-celled except near the top, the placentae seemingly borne on the middle 

 of the alternate partitions. Seeds rather large, flat. — Bank weeds, narcotic- 

 poisonous, with a rank odor, beaiing ovate angular-toothed leaves, and large 

 and showy flowera on short peduncles in the forks of the branching stem. (Al- 

 tered from the Arabic name Tatorah.) 



1. I>. Steam6nhim, L. (CoMMOM Stkamonium.) Leaves ovate, smooth ; 

 stem green; corolla white, with 5 teeth. — Var. TAtula has the stem and 

 corolla tinged with purple. (J) — Waste grounds ; a well-known weed, with 

 large flowers (3' long). July- Sept. (Adv. from Asia or Trop. Amer.) 



6. NICOTIAHTA, L. Tobacco. 



Calyx tubular-bell-shaped, 5-cleft. Corolla funnel-form or salver-form, usu- 

 ally with a long tube; the plaited border 5-lobed. Stigma capitate. Pod 2- 

 celled, 2 -4-valved from the ai)ex. Seeds minute. — Eank acrid-narcotic herbs, 

 mostly clammy-pubescent, with ample entire leaves, and lurid racemed or pani- 

 cled flowers. (Named after John Nicot, who was thought to have introduced the 

 Tobacco into Europe.) 



1. N. RtJsTiOA, L. (Wild Tobacco.) Leaves ovate, petioled; tube of 

 the dull greenish-yellow corolla cylindrical, two thirds longer than the calyx, 

 the lobes rounded. ® — Old fields, from New York westward and southward : 

 a relic of cultivation by the Indians. (Adv. from Trop. Amer.) 



N. TabAcum, L., is the cultivated Tobacco. 



Atropa BELLADdNNA, L. (Dbadlt Nightshade), a plant with pur- 

 plish-black poisonous berries, has escaped from gardens in one or two places. 



Lycium BArbarbm, L. .(Bareart Box-thorn, or Matrimont-vinb), 

 a slightly thorny trailing shrubby vine, well known in cultivated grounds', is yet 

 hardly spontaneous. 



CAPSICUM Annuhm, L., is the Cayenne, or Red Pepper of the gardens. 



Obdek 83. GENTIANAcE-«3. (Gentian Family.) 



Smooth herbs, mth a colorless bitter juice, opposite and sessile entire and 

 simple leaves (except in Tribe H.) wiffunU stipules, regular flowers with tlie 

 stamens as many as the lobes of the corolla, which are convolute (rarely im- 

 bricated, and sometimes valvaie) in the bud, a 1-celled ovary with 2 parietal 

 placentoe; the fruit mostly a 2-valved (septicidal) many-seeded pod. — Flow- 

 ers" solitary or cymose. Calyx persistent Corolla mostly withering-per- 

 29* 



