N. 0. SOLANACEiE. 921 



stalk contains 0*49 per cent., the leaf 0*9 pep cent., and the seed capsule 0*585 

 per cent, of alkaloid. 



Previous to the outbreak of the present war not only was a large propor- 

 tion of the drug grown in Germany but German chemists practically held a 

 monopoly for the manufacture of the alkaloid. 



If then the supply of this substance falls short of the demand, English 

 manufacturing chemists can obtain an adequate supply of the raw material 

 from Northern India, for the plant can be exported in the dry state without 

 impairing its value for alkaloidal manufacture.— J. H. Barnes.) The Agricul- 

 tural Journal of India, January, 1916 pp. 86-88. 



878. H. reticulatus, Linn. 



Vern. : — Khorasani Ajowan (H.). 



Habitat. : —Baluchistan. It grows abundantly in Quetta. 



It differs from the species mentioned above in having a 

 prickly stem, flowering bordering on purple and a black seed. 



Use : — It is used like other species of Hyoscyamus, for it 



contains Hyoscyamine. 



Seeds, 0*082; whole plant (1), 0*240, (2) 0'116 per cent, of total alkaloid. 

 Hyoxyamine was the only alkaloid that was identified.— [Bull. Imp. Inst. 1911]. 



879. Nicotiana Tabaeum, Linn, h.f.b.i., iv. 245. 



Vern. : — Tamaku (Hind.) ; Tanbak (Arab.) ; Tanbaku (Pers.) ; 

 Tamak (Beng.) ; Tamrakuta (Sans.) ; Tamaku, tamaqu (Dec); 

 Pugai-ilai (Tarn.) ; Pogaku, dhumrapatramu (Tel.) ; Puka-yila, 

 pokala (Mai.) ; Hogesappu (Kan .) ; Tamaku (Guz.) ; Dungazha, 

 dimkola (Cingh.) ; Se (Burm.) ; Tambakhu (Bom.). 



Habitat : — Cultivated throughout India. 



Erect, viscidly-pubescent herbs, shrubs or trees. Leaves si- 

 nuate entire, large, oblong, elliptic ; base cuneate, corymb com- 

 pound, ultimate branches short. Panicles terminal, or racemes 

 compound subterminal. Calyx ovoid or tubular, 5-fid. Calyx- 

 teeth triangular-lanceolate. Corolla linear funnel-shaped. Corol- 

 la lobes 5, in duplicate in bud. Stamens attached in the lower 

 part of the Corolla-tube, filaments filiform ; anther ovate, 

 dehiscing longitudinally. Ovary 2-celled ; style filiform, stigma 

 shortly 2-fid. Capsule fin. 2-rarely sub-4 celled, 2-valved to the 

 116 



