PHYTOGENY. 241 



1251. The cells of the red corollae are replete with 

 starch-granules, but those of the white are quite empty. 

 The yellow and blue corolJse range in the middle. "Red is 

 a superabundance, White a deficiency, of nutriment. The 

 most noble and beautiful corollse, as well as the lowest 

 also, may therefore be white. White and red are the 

 general colours for all families of plants, but yellow and 

 blue are special colours. In general the trunk is green, 

 the corolla white, the seed black. The mediate stages 

 are red, yellow, and blue. 



STAMEN-FILAMENTS. 



1252. At length we come to the last work achieved 

 by the light in the corolla, or to complete sepa- 

 ration of the systems or tissues. If ever bundles of 

 fibres may entirely separate from the cellular substance, 

 this is possible only in the corolla, as being the final 

 light-organ. Separation must, however, be attained : 

 for thus far do the claims of light extend. But no de- 

 velopment remains stationary before it has corresponded 

 with the operations of the developing agent. 



1253. In the corolla, as being the highest kind of 

 leaf, the ribs, as the fibrous fascicles, must finally sepa- 

 rate themselves from the leaf-substance as cellular tissue. 

 The corolla is a double organ. 



1254. In conformity with the whole structure of the 

 plant, the ribs are placed internally, the membranes exter- 

 nally. 



1255. The leaf-ribs, isolated and perfected as a par- 

 ticular organ, are the Stamen-filaments. 



1256. The leaf-membranes, or probably the phyllodia, 

 isolated and evolved into a particular organ, are the 

 corolla-petals. These compose in the strongest sense 

 the corolla. The filaments consist for the greatest 

 part of spiral fibres, and the corolla-petals of the finest 

 cellular tissue, which may be almost designated as gra- 

 nular. This then would be the rational import of the 

 corolla and its stamen-filaments. Both are of similar 

 production ; they exhibit like substance, colour, and deli- 



16 



