N. O. SOLANACEjE. 1)17 



each answerable to the formula C 17 H"NO'. They can all three be resolved 

 thus : — 



1. Atropine yields tropic acid and tropine (base) ; 



2. Hyoscyamine yields the same, i.e, tropic acid, and tropine (base) ; 



3. Hyoscine yields tropic acid, and psendo-tropine, 



Note here, that in chemical parlance, Atropine is a compound of a base 

 called Tropine and Tropic acid, Ladenburg calls the compound Tropeine." 



874. Scopolia lurida, Dunal. h.f.b.i., iv. 243. 



Syn. : — Physalis Stramorrifolia, Wall. 



Habitat -.--Central Himalaya, Nepal and Sikkim. 



An erect, glabrescent herb. Branches 3-6ft., sparingly 

 divided, rusty-tomentose when young, later pubernlous or 

 glabrate. Leaves 8 by 3 in., acute at both ends, ovate lanceolate, 

 ultimately glabrate ; petiole Jin., peduncles lin. Calyx in 

 flower fin,, in fruit attaining to 2 by 1 Jin., lobes short, irregular. 

 Fruit Calyx rather reticulated. Corolla 1} by fin., lurid yellow 

 or greenish purple. Ovary 2 celled, 1-celled near the top. 

 Capsule fin., lid 1-celled. 



Use : — A tincture of the leaves, in the proportion of one 

 ounce to eight ounces of alcohol, administered produces dila- 

 tation of the pupil. The subject demands further investigation 

 (Ph. Ind.) 



It has been examined by Siebert. (Archiv. dtr Pharm. Feb. 20, 1890, 

 p. 145.) Prom flowering plants he reports that he obtained, by fractional 

 precipitation of an acidulated liquid with gold chloride, a " not inconsiderable 

 quantity of hyoscyamine," but no atropine or hyoscine, while from plants 

 collected when the seed had ripened, only a very small quantity of atropine 

 could be isolated under the same conditions and no hyoscyamine. The 

 failure to detect hyoscine is thought to be possibly due to insufficiency of 

 the material used. These results seem to indicate that the degree of develop- 

 ment of the plant may have an important relation to the quantity and nature 

 of the alkaloids occurring in it. (Pharm. Journ. Mar. 1st, 1890, p. 709.) 



875. Physochlaina prcealta, Hook. f. h.f.b.i., iv. 

 244. 



Habitat:— N. Kashmir and Western Tibet. 

 Vern. : — Sholar, bajar-bang, nandrn, dandarwa, lang thang, 

 khardag (,Pb). 



