1 10 I'AI'AVERACEjE. 



terminal 2-3-valved buds, a long-petioled leaf and a naked 

 one-flowered scape. Leaf roundish, palmately 5 - 9-ribbed 

 and obtusely 5 — 9-lobed, reticulated-veiny, wrapped around 

 the flower-bud when it rises from the ground, much en- 

 larged after expansion and becoming reniform. Flower 

 large for the size of the plant, handsome : petals white. 



Etymology. Name from sayiguis, blood, in allusion to the color of the 

 juice, which flows copiously from the rootstock or petioles when wounded. 



Properties. An acrid narcotic, the former quality prevailing ; of con- 

 siderable importance and promise in the materia medica. The active prop- 

 erties appear to be principally due to a peculiar, extremely acrid alkaloid 

 principle, called sanguinarina. The juice was used by the aborigines as a 

 paint or dye ; and hence, like several other tinctorial plants, it was called 

 Puccoon. 



Geographical Distribution. Common, in rich woods, throughout the 

 United States and Canada. • 



PLATE 49. Sanguinaria Canadensis, Linn.; — vernal plant, of the 

 natural size. 



1. A sepal, enlarged, seen from the inside. 



2. A petal, equally enlarged. 



3. An enlarged stamen, seen from the inner side. 



4. Same, seen obliquely from the outer side. 



5. Pistil, enlarged ; and 6, same, divided transversely. 



7. An ovule, magnified. 



8. A pod, of the natural size. 



9. Same, the valves cut away ; the seeds removed from the placenta; above. 



10. A seed, enlarged, with its large, crested raphe. 



11. Section of the same, showing the embryo at the base of the albumen. 

 10. Emhrvo, detached and more magnified. 



