THE ORGANIC ELEMENTS. 



17 



16. Generally regularly, seldom 

 irregularly, composed of from 2 

 to 6. In the bark of the roots 

 of the various sorts of Sarsa- 

 parilla. 



2. The separate Granules in tJie 

 Composition having a distinct 

 central Cavity. 



A. All the parts of the granules 

 nearly of the same size. 



17. United, according to simple 

 types, from 2 to 4. The central 



cavity small and roundish. In the tubers of Jatropha Manihot. 



18. Combined from 2 to 4, according to simple types. The central 

 cavity large and very beautiful, opened in a star-like form. In the 

 cormus of Colchicum autumnale (fig. 12.). 



19. Combined according to simple types from 2 to 4. The separate 



granules quite hollow, appa- 

 rently cup-shaped. A marked 

 form occurs in Radix Ivar- 

 ancusce (Anatherum Ivaran- 



CUSCB] (fig. 13.). 



20. Firmly combined, from 

 2 to 12 in number, in very 

 irregular groups. In the 

 rhizoma of Arum maculatum 

 (fig. 14.). 



21. A large number (often 

 as many as thirty) of small 

 roundish granules, very loosely 

 rolled together. Frequent, as, 



for instance, in the stem of the Bernhardia dichotoma. 



11 Granules from the rhizoma of Maranta arundinacea (West Indian arrow-root) 

 Composed of from 2 to 4 granules, the separate parti-granules always exhibit the 

 smooth connecting surfaces. 



18 Starch granules from the cormus of Cokhicum autumnale. The separate granules 

 are quite similar to those in the seeds of the Leguminosce, but generally composed of 

 from 2 to 4, with very beautifully radiated opened central cavities. 



13 Starch granules from the rhizoma of Anatherum Ivarancusa (Radix Ivarancusce). 

 The separate granules with large central cavities, as in Iris florentina, but composed 

 of from 2 to 3 combined. 



14 Starch granules from the subterranean stem of Arum maculatum, irregularly 

 composed of many grains, each granule having an indistinctly defined central cavity. 



C 



