THE ORGANIC ELEMENTS. 



15 



1. Roundish Bodies. 



A. With the central cavity, Fritsche's nucleus, apparently wanting. 



1. Quite small, almost spherical, granules, occurring almost every- 

 where in the vegetable kingdom, from time to time, as cellular contents ; 

 for instance, in Carrots, in cambium, in the winter ; in leaves, as the 

 bearers of Chlorophyll, &c. 



2. Large, irregular, knobby, often truncated multangular granules ; 

 as, for instance, in the bulbous buds of Saxifraga granulata, in the 

 spurious tubers of Ficaria verna. 



B. With small roundish central cavities. 



a. With a perceptible laminated formation. 



3. Very large, rough, granules, deformed as it were, found in the pith 



of the Cycadacece. There 



6. are somewhat similar 



granules in the subter- 

 ranean leaves of Lathrcza 

 squamaria ; in these the 

 inner layers form an ovate 

 granule, almost similar to 

 those of potato starch : the 

 few external ones, on the 

 contrary, are so irregular, 

 and generally so dispropor- 

 tionally thickened at one 

 or two sides, that the whole 

 granule assumes a broadish 

 triangular figure. 



4. Ovate granules. In 

 the potato (fig. 6.). 



5. Mussel-like granules. 

 In the bulbs of the larger 

 Liliacece, as in Fritillaria, 

 Lilium (fig. 7.), &c. 



6. Almost triangular in 

 tulips. 



b. With an indistinct or 

 deficient lamellated form- 

 ation. 



7. Rounded-off polyedric granules. In the albumen (perisperm) of 

 Zea Mays. 



8. Sharp-edged, polyedric, very small granules. In the albumen of 

 Oryza sativa. 



C. With an elongated central cavity. 

 9. Roundish or oval granules, in a dry 



condition, generally showing a star-like 

 cleft in the inner layers. In the Legu- 

 minosce, as in the seeds of Pisum, Pha- 

 seolus. 



D. Perfectly hollow, apparently cup- 

 like, granules. 



8 Granules of starch from the potato, the layers being copied true to nature. 



7 Granules of starch from the bulb of Lilium bulbiferum. The layers are faithfully 

 delineated : a, from the surface ; and 6, a lateral view. 



8 Granules taken from the rhizoma of Iris ;w//iW/i, with a large central cavity. 



