DICTIONAHY OF 'I'lIE ACTIVE I'ltlNCI I'l.KS OK I'LANT.-i 



Soluble in alcohol, ether, chloroform, petroleum ether (removed by the 

 latter from a bicarbonate solution — compare Alstonine). 



Reactions : Ammonia, pp. and magnificent blue fluorescence. 

 Platinum chloride ( 

 (Jold chloride \ PP' 



Potassium bichromate, yellow pp. and red coloration (not permanent). 

 Mercuric chloride, pp. 

 Colour tests : 



Concentrated .sulphuric acid ) 



„ „ ,, +molybdic (Fruhde's soln.) 'purple. 



nitric acid ) 



„ sulphuric acid and potassium bichromate, greenish-blue. 



(/'I ALSTONIDIME A. (Hesse's), closely resembles O. and S.'s Alstonine, 

 buf. not identical. Crystallizes in needles ; M.P. 181" ; bitter. 

 Soluble in acetone. Salts have blue fluorescence. 

 Precipitated by alkaline hydrates and ammonia. 

 No colours with concentrated sulphuric acid or Fnihde's solution. 

 ('/) ECHITIN (Cynanchin? see Asclepias group), C.,.,H;,^,Oo; non-alkaloidal, 

 non-ylncosidal ; crystallises in needles ; dextro-rotatory. 



Soluble in l,4!i0 parts of alcohol, and in ether and chloroform. 

 (/() ECHICERIN (Cynanchocerin?), C,„Hj80., ; wax-like, crystalline, dextro- 

 rotaiory. 



Soluble in ether, chloroform, benzene, petroleum ether, acetic ether, 

 and with ditticulty in acetone. 



Saponifiable, yielding a substance crystallizing in needles. 



(i) ECHIRETIN (=Lactucerin = Cubeb Camphor, Hesse). Aromatic. 



Soluble in ether, chloroform, benzene, acetic ether, and hot alcohol. 



§ 1'-'. AMARYLLIS formosissima {Amari/llidacea) ; alkaloid (a). 

 Investigators : Arata and Gieger. A. Belladonna, alkaloid (6). 



(a) AMARYLLINE A. Crystallises in needles from alcohol ; M.P. 196° 

 (previously becoming brown). 



Soluble in alcohol, ether, chloroform, and with difficulty in water. 

 Precipitants : 



[Not tannic acid.] Bismuth potassic iodide 1 , ., 



Picric acid, yellow. Cadmium potassic iodide i ^ 



[Not platinum chlf^ride.] Mercuric potassic iodide, yellowish- 



[Not potassium bichromate.] green. 



' Pps. also with other alkaloid precipitants.' 



I Colour tests: Concentrated .sulphuric acid, red-brown-wbrown-i^. green 

 with water. 

 Fruhde's solution, brownish-green. 

 (/;) BELLAMARINE A. Crystallizes in needles ; M.P. 181' (previously 

 browning). 



Soluble in alcohol, ether, chloroform. 

 Precipitants : 



Alkaline carbonates. Potass, bichromate, crystalline pp 



Tannic acid, white. Bismuth potassic iwlide, white. 



Picric acid, yellow. Cadmium potass, iod., yellow-white. 



Platinum chloride, yellow. Merc. ]iotassic iodide, yellow-green. 



Colour tests : Concentrated sulphuric acid, gray~v.red on warming. 

 Concentrated sulphuric acid + uitre, yellow-green. 



„ ,, „ +potass. bichromate, yellowish-green-v^- 



brown. 

 Fri'ihde's solution, brown. 



§ l:'.. AMMI WISNAGA— the seeds ('Kell'); Umhdlifera. Egypt. 

 Investigator : JIustapha, C'ompt. R., Aug., 1871). 



KELLIN G. C'rys. silky needles, neutral, very bitter. Action emetic and 

 narcotic. 



Soluble in !it}l water, amyl alcohol, methyl alcohol, and chloroform, but 

 with ditticulty in these fluids when cold ; readily soluble in ether. 

 Reactions : 



Fehlins's solution, reduced. 



Nessler's „ white pp., sol. in alcohol. 



Loews reagent ,, „ excess. 



§ 14. ANAGYRIS foetida ; Ler/umhinna'. Investigators : Gallois and 

 Hardv. 



ANAGYRINE A., C,jH„XoO..; amorphhous,alkaline, bitter. Salts crystalline. 



Soluble in water, alcohol, ether, benzene. 



Precipitates with most alkaloid reagents. 



Concentrated sulphuric acid, unchanged cold ; musk like odour on 

 warming. 



§ 15. ANCHIETA salutaris ; Violacea: Investigator: Peckolt, JrcAi)-. 

 Pharm. ['J^gT.liTl. 



ANCHIETINE A. Crys. light yellow needles, feebly alkaline, pungent 

 taste. Salts crystalline. Action emetic. 



Soluble in alcohol ; not in ether, nor cold water, and scarcely when hot. 



