II. _N. Tabacum angustifolia_—Virginian tobacco. Of this, there are two sub-species—(1) Stalkless Virginian of the following varieties: (_a_) _N. angustifolia acuminata_, grown in Germany for snuff, seldom for smoking, (_b_) _N. angustifolia lanceolata_, affords snuff, (_c_) _N. angustifolia pendulifolia_, another snuff tobacco, (_d_) _N. angustifolia latifolia_—broad-leaved Virginian, used chiefly for snuff, (_e_) _N. angustifolia undulata_—wave-like Virginian, matures quickly, (_f_) _N. angustifolia pandurata_, furnishes good leaves for smoking, produces heavily, and is much grown in Germany, and said to be grown at the Pruth as “tempyki,” and highly esteemed there; (2) Stalked Virginian, of the following varieties: (_a_) _N. angustifolia alata_, (_b_) _N. angustifolia lanceolata_ [_N. fructiosa_], growing to a height of 8 ft., (_c_) _N. angustifolia oblonga_, (_d_) _N. angustifolia cordata_—E. Indian, producing heavily in good soil, and well adapted for snuff, but not for smoking. Latakia and Turkish are now accredited to _N. Tabacum_. III. _N. rustica._—Common, Hungarian, or Turkish tobacco. Of this, there are two varieties: (_a_) _N. rustica cordata_—large-leaved Hungarian, Brazilian, Turkish, Asiatic, furnishing leaves for smoking; (_b_) _N. rustica ovata_—small-leaved Hungarian, affords fine aromatic leaves for smoking, but the yield is small. Until quite recently, Latakia, Turkish, and Manilla tobaccos were referred to this species; Latakia is now proved to belong to _N. Tabacum_, and Manilla is said to be absolutely identical with Cuban, which latter is now ascribed to _N. Tabacum macrophylla_. IV. _N. crispa._—This species is much grown in Syria, Calabria, and Central Asia, and furnishes leaves for the celebrated cigars of the Levant. V. _N. persica._—Hitherto supposed to be a distinct species, affording the Shiraz tobacco, but now proved to be only a form of _N. Tabacum_. VI. _N. repanda._—A Mexican plant, with small foliage. Long thought to be a distinct species peculiar to Cuba, but none such is now to be found in Cuba, whether wild or cultivated, and all the Cuban tobacco is now obtained from _N. Tabacum macrophyllum_. Among the many other forms interesting only to the botanist or horticulturist, the principal are _N. paniculata_, _N. glutinosa_, _N. glauca_, attaining a height of 18 ft., and _N. clevelandii_, exceedingly strong, quite recently discovered in California, and supposed to have been used by the early natives of that country. Thus the bulk of the best tobaccos of the world is afforded by the old well-known species _Nicotiana Tabacum_. A good idea of the foliage and inflorescence of commonly cultivated tobaccos may be gained from a study of the accompanying illustrations. [Illustration: FIG. 1.]