POISONS ACTING ON THE HEART. 21 



PHYSOSTIGMA VENENOSUM (JVest Africa). 



CALABAR BEAN. — CHOP NUT. 



LeouminoscB. — Climber. — Stem woody ; cyhndrical ; 50ft. — 

 Leaves alternate ; pinnately trifoliate. — Flowers in long, zigzag 

 racemes ; rachis set with solid tubercles. — Pod compressed ; 

 pointed ; 4-7in. ; lined inside with white wool. — Seeds 3 ; ijin. 

 by fin. ; testa smooth ; chocolate ; hilum long ; black ; tasteless 

 and odourless. — Perenn. — Mauve with crimson centres. 



Toxic principle. — ESERING, also contained in Erythrophloeum 

 Guineense. 



PILOCARPUS PENNATIFOLIUS {Brazil). 



JABORANDI. 



Rutacecs. — Shrub ; 4-6ft. ; branches erect. — Leaves alternate ; 

 without stipules ; i^ft. ; leaflets opposite ; in 2-5 pairs and 1 

 terminal. — Flowers small ; on short pedicels ; arranged round 

 an erect raceme, i8in. long, which te.rminates a branchlet. — 

 Fruit composed of 5 carpels, spreading round a hard axis. — 

 Seed solitary ; black. — Spring and early summer ; violet. 



Toxic principle.— V\\S>GIiSiSm^. 



PSYCHOTRIA IPECACUANHA {Brazil). 



IPECACUANHA. 



RubiacecB. — Stem ascending, somewhat shrubby. — Leaves 

 ovate-lanceolate, slightly pubescent; leaflets slightly cordate, 

 bracts large. — Flowers white, in involucred head, corolla tubular, 

 five-cleft, stigma two-parted. — Berry two-seeded, receptacle 

 chaffy. 



Toxic principle.—^ViWSm^. 



