100 SOLANACE.E. Nicotiana. 



Order LXXVII. SOLANACEtE. Juss. The Nightshade Tribe. 



Calyx of 4 or 5 more or less united sepals, persistent, or the upper part rarely 

 falling off. Corolla regular or rarely a little irregular, mostly plaited in 

 asstivation. Stamens 5 (rarely 4 or 6). Ovary 2-celled ; the placentae in the 

 axis : style single : stigma undivided or somewhat 2-lobed. Fruit a capsule 

 or berry. Seeds numerous. Embryo usually curved, in fleshy albumen. — 

 Herbs or shrubs, with a watery juice. Inflorescence various : pedicels without 

 bracts. 



CONSPECTUS OF THE GENERA. 



* Frttit a capsule or dry berry. 



1. Nicotian*. Calyx tubular-campanulate. Corolla funnelform, with a slenJpr tube and spreading limb. Capsule 



2-valved ; the valves sometimes 2-cleft. Seeds minute. 



2. DiTURi. Calyx tubular, mostly angular, deciduous, leaving an orbicular base. Corolla funnelform. Capsule 2- 



celled, 4-valved; the cells divided into two by a spurious dissepiment. 



3. Hyosctamus. Corolla funnelform, oblique. Capsule opening by a lid. 



4. NiCANDRA. Corolla campanulate. Stamens curved, distant. Capsule or dry berry 3-4-celled, covered by the 



inflated calyx. 



** Fruit a berry, 



5. Physalis. Corolla campanulate-rotate. Stamens connivcnt; anthers opening longitudinally. Berry covered by 



the inflated calyx. 



6. SoLANCM. Calyx 5- (rarely 10-) cleft. Corolla rotate, mostly 5-cleft, plaited. Anther-cells opening by a terminal 



pore. Berry not covered by the calyx. 



1. NICOTIANA. Linn.; Endl. gen. 3841. tobacco. 



[ Named after John Nicot, ambassador from France to Portugal in 1 560, who introduced the abominable weed into 



Europe.] 



Calyx Uibular-campanulate, 5-deft. Corolla funnelform or salverform ; the limb 5-lobed and 

 plaited. Stamens equal : anthers opening longitudinally. Stigma capitate. Capsule 2- 

 celled, loculicidal ; the valves at length 2-cleft. — Herbs or rarely undershrubs, often viscidly 

 pubescent, with entire leaves, and the flowers in terminal racemes or panicles. 



1. Nicotiana rustica, Linn. Wild Tobacco. 



Stem terete ; leaves petiolate, ovate ; tube of the corolla cylindrical, longer than the calyx, 

 the lobes rounded. — Linn. sp. 1. p. 180 ; Nutt. gen. 1. p. 132 ; Lehm. hist. Nicot. p. 13 ; 

 Bart. jl. N. Am. t. 25 ; Torr. fl. \. p. 223 ; Bed, hot. p. 258. 



Annual, viscidly pubescent. Stem 1-2 feet high, somewhat branching above. Leaves 

 3-8 inches long ; the radical ones largest. Flowers in a terminal paniculate raceme ; the 

 pedicels bracteate. Calyx about one-third the length of the corolla ; the lobes short and 



