240 BIOLOGY. 



1244. The whole plant must be regarded as a green 

 synthetic colour; the corolla as the analysis of the 

 Green. 



1245. The first division of the Green is Yellow and 

 Blue. These two colours are the first which make their 

 appearance in the corolla. 



1246. Yellow is the earth-colour, corresponds to the 

 root, and consequently indicates the lowest colour. Yellow 

 corollae are less developed than those which are otherwise 

 coloured. The corollae of spring flowers are therefore 

 yellow; so likewise is the middle of the corolla, as is 

 specially exemplified in the disk of the Syngenesious 

 plants. 



1247. Blue is the second colour of corollae in the scale 

 of dignity, or rank. Blue is displayed on the better 

 developed corolla, and is frequently the colour in the 

 rays of the Syngenesiae. Blue belongs to the temperate 

 zones. 



1248. If Yellow and Blue be the divided Green of the 

 leaves, the complementary colour to that of the corollae 

 must thus remain in the trunk. The trunks of plants 

 having blue corollae should therefore be yellow ; those 

 with yellow corollae should furnish blue colouring matters, 

 like the Woad. 



1249. Red is the third corolla-colour, the true light- 

 colour, in the which properly all corollae have been 

 immersed ; and if they exhibit any other colours, these 

 should be viewed only as instances of aberration from 

 Red. The Reds are the splendid colours, which develop 

 themselves in the middle of summer; in flaming red 

 mantles are the flowers of the torrid zone veiled. 



1250. Finally, the form triumphs over the colour. 

 The light has in Red done everything which it could do 

 for colour, having allured as it were all the colours out 

 of the plant ; it now, on the contrary, bestows its atten- 

 tion upon the form and delicacy of the substance. The 

 white colour makes its appearance in antithesis to the 

 red, and is mostly associated with very delicate struc- 

 ture. 



