FOR FORMS AND QUALITIES. 



15 



ferently coloured, or of another substance, (§ S8.) Round 

 spots, surrounded by a circle, are said to be ocellati. We al- 

 so use the words halonatus, holme cinctus. 



23. 



Among the many colours which appear in the vegetable 

 kingdom, the metallic are of least frequent occurrence. 

 Their various gradations have very properly been referred to 

 certain fundamental colours ; and the transitions from one 

 colour to another have been pointed out. 



When there is scarcely any colour, and the parts are al- 

 most transparent, we use the words pellucidus, diaphanus, 

 hyalinus^ agueus or vitreus. The opposite of this is opake 

 (opacus.) 



The addition of the words sordide, intense, saterrime, pal- 

 lide, dilute, to colours, expresses the different gradations of the 

 dirty, the intense, and the pale colours. 



1. The white colour (albus, in Greek compounds leuco-,) 

 has for its ground-tone the snow-white (niveus), which we 

 particularly observe, in its most beautiful state, in Camellia 

 Japonica. If the white colour is still very pure, but not so 

 clear as in the case already noticed, it is said to be candidus. 

 In Greek compounds this is expressed by the word argo-. 

 The white lilies afford the best example. If this last white 

 be united with a certain lustre, the term eburneus is used,^ 

 although but seldom. 



If the lustre of the white colour is still more distinct, but 

 the colour itself net quite pure, we employ the term silvery, 

 (argenteus, and in Greek compounds argyro-.) 



A faded white passing somewhat into a bluish, is called 

 milk-white (lacteus, and in Greek compounds galacto-.) 



Indeterminate varieties of the white colour constitute the 

 whitish (albidus and albescens). 



If the white colour passes into the grey, it becomes hoary 

 (canus, incanus), especially when the surface is spreckled with 

 a greater or less number of distinguishable hairs. 



2. The grey colour (griseus) has its ground-tone in the 

 ash-grey (cinereus, and in Greek compounds tephro- and spo- 



