34 PROSEKPIXA. 



In the Flora Suecica, the petal-markings are said to be 

 black ; in c Yiola lactea ' a connected species, (Sowerby, 

 45,) purple. Sowerby's plate of it under the name 

 ' palustris ' is pale purple veined with darker ; and the 

 spur is said to be ' honey-bearing,' which is the first men- 

 tion I find of honey in the violet. The habitat given, 

 sandy and turfy heaths. It is said to grow plentifully 

 near Croydon. 



Probably, therefore, a violet belonging to the chalk, 

 on which nearly all herbs that grow wild from the 

 grass to the bluebell are singularly sweet and pure. I 

 hope some of my botanical scholars will take up this 

 question of the effect of different rocks on vegetation, 

 not so much in bearing different species of plants, as 

 different characters of each species.* 



41. IX. VIOLA SECLUSA. Monk's Violet. "Hirta," 

 Flora Danica, 618, " In fruticetis raro." A true wood 

 violet, full but dim in purple. Sowerby, 894, makes it 

 paler. The leaves very pure and severe in the Danish 

 one ; longer in the English. " Clothed on both sides 

 with short, dense, hoary hairs." 



Also belongs to chalk or limestone only (Sowerby), 



X. VIOLA CAJSTNA. Dog Violet. I have taken it for 

 analysis in my two plates, because its grace of form is 

 too much despised, and we owe much more of the beauty 



* The great work of Lecoq, ' Geographic Botanique,' is of priceless 

 value ; but treats all on too vast a scale for our purposes. 



