SOLANACE^.. 



187 



NICOTIANA, Tourn. (Tohacco.) Calyx tul)ular, hairy, divided into 

 5 parts, divisions narrow and [)()inted, half as long as the corolla-tube; 

 corolla funnel-shaped, tuhe liairy ; linih divided into 5 sharp segments, 

 turned back, reddish ; filaments 5, curved inwards, terminating in a 

 lengthened, slender style, crowned with a round cleft stigma. Seed- 

 vessel divided into 2 cells ^ seeds small, round, and numerous. Flowers 

 in July and August in America. 



1. N. tabacum, L. Stem round, terete, hairy, 4 to 6 feet high, stout and 

 leafy (iu cultivatiou). Root large and fibrous; bracts linear and pointed. 

 Leaves 10 to 25 inches long, and 8 to 10 inches broad, entire, oblong, strongly 

 veined, pointed and sessile. Flowers terminal, in loose panicles, rose-color. 

 July. 



2. N. rustica, L. Stem 3 to 5 feet 

 high, round, terete, and stout. Leaves 

 petioled, ovate, and shorter than in No. 1 ; 

 segments of the corolla rounded. The 

 whole plant is smaller and more hardy 

 than No. 1, and is cultivated further 

 north. 



There are several other species, among 

 which are ; — 



3. N. macrophylla, Lehm. (Great- 

 leaved.) Leaves very large, clasping, 

 ovate, and eared at the base ; corolla 

 inflated at tlie mouth. 



4. N. Persica, Lindl. Lower leaves 

 oblong, upper ones lanceolate and sessile; 

 corolla salver-shaped ; tubule elongated. 

 Cultivated in Persia, and furnishes the 

 celebrated Shiraz tobacco. 



.5. N! repanda, W. ( Wavy Tobacco.) 

 Leaves clasping, cordate, spatulate, re- 

 pand ; tube of corolla long and slender. 

 Cultivated in Culia. 



6. N. quadrivalvis, Pursh. (Four- 



valved Tt)bacco.) Stem branched. Leaves petioled, oblong; corolla-tube 

 twice as long as the calyx, segments obtu.se; capsule 4-valved, round. Found 

 under cultivation among the Indians in the Missouri valley. 



7. N. nana, Lindl. (Dwarf Tobacco.) Leaves lanceolate . whole plant 

 smaller than any other species. Found under cultivation among the savages 

 of the valley of the Columbia river. 



Geoqraphji — Tobacco arrives at the greatest perfection on virgin soil, or 

 what the agriculturist calls " new land." It grows well in all parts south of 

 the middle of the temperate zones and in the tropics. 'I'he best (lualitie.s are 

 rai.sed in Virginia, Kentucky, and the Carolinas, Venezuela. Tuba, and Brazil. 

 It has been of late years an important crop iti sorno parts of the Middle At- 

 lantic States, especially Coiuiecticnt and Pennsylvania 



In Great Britain the p^rowing of tobacco i.s prohibited by law, as a large 

 portion of the national revenue consists of duty on its importation It is an 



NiroTiANA TABAci'M (Tobacco). 



