12 POISONOUS PLANTS. 



PISCIDIA ERYTHRINA ( IVesf Indies). 



.JAMAICA DOGWOOD — FISH-POISON TREE. 



LeguminoscB —The only known species of this genus. A 

 tree ; 30ft. — Flowers white, and mixed with blood-color ; 

 appearing before the leaves ; calyx-teeth broadly triangular ; 

 standard silky-hoary outside the claw, almost equalling the 

 calyx ; panicles lateral, sometimes ovate and dense flowered, 

 scarcely 3ins. long (sometimes elongate thyrsoid, 6-i2ins. long). 

 May. — Leaves alt. pinnate, exstipulate ; leaflets 7-11, oval, 

 obovate, or broadly oblong, obtuse or shortly acuminate, at 

 length coriaceous, 2-4 in. long on stalks :^in. long. — Pod lance- 

 shaped, bearing 4, projecting, longitudinal wings. 



Toxic principle. — PISCIDINE ; also contained in P. carthagi- 

 nesis. 



PIN US PINASTER (British). 



FIR — STAR PINE — CLUSTER PINE. 



ConifercB. — Leaves single ; rigid ; bluish-green. — Cones ovate- 

 conical ; green when unripe ; 3-8in. — Male catkins large ; 

 yellow. — A tree ; northern forests. — May and June. 



Toxic principle.~Vm'Ei'&^ ( = A Terpens). 



PINUS LARIX {Cultivated in Britain). 



LARCH PINE — CORSICAN PINE— C.ALABRIAN PINE. 



ConifercB. — Tree ; Soft. ; smaller branches slender and pen- 

 dent. — Bark flaky ; gray ; red beneath. — Leaves deciduous ; in 

 bush-like tufts, containing 30-40 whitey-green leaves, from 

 perennial buds. — Male Catkins sessile ; iin ; pale yellow. 

 Female cones shortly stalked ; \\n. ; erect ; bright pink, when 

 unripe. 



Toxic principle. — PINENE ( = A Terpene) ; also contained in 

 P. australis (AUSTRALINE), P. sylvestris (AUSTRALINE) and 

 P. tseda. 



ARTEMISIA PAUCIFLORA. 

 ARTEMISIA LERCHEANA {Scandinavia). 



WORM SEED— SANTONIN. 



Composite. — Shrubby. — Rootstock branching from the crown. 

 — Shoots short ; numerous; ift. ; woody-white. Branches erect. 

 — Leaves alternate. — Flowers crowded in spike-like panicles ; 

 3-5 in each head ; bluish. — Perenn. 



Tojrzc /«■;?«■/)/«.— SANTONIN. 



