184 The Ottawa Naturalist. [January 



of herbage, aerial apetalous flowers and fruits, and large obcord- 

 ate petals instead of deeply coloured and cuspidately acute ones." 



Viola Macounii, Greene, Pittonia, vol. ill, p. 335. 



(Plate I, Fig. i, a, 1j. ) 



Rather larger than the preceding ; early leaves subreniform- 

 deltoid, I inch long, i^ inches broad, firm and rather fleshy, 

 crenate, villous-hirsute beneath and on the upper part of the 

 petiole, only sparsely hairy above, but the margin ciliate ; pedi- 

 cels bibracteolate in the middle ; sepals broad, obtuse, ciliate, 

 somewhat callous-tipped ; petals lavender-colour, very decidu- 

 ous or almost caducous, all remarkably narrow and elongated, 

 the two upper rather smaller than the others, the odd one the 

 largest, all sparsely hairy over almost the whole inner face, the 

 claws more or less distinctly ciliate ; peduncles of the late apeta- 

 lous flowers slender, short, horizontal, buried under decaying 

 leaves or twigs ; their pods distinctly trigonous, short and thick, 

 as broad as long, dark with numerous purple blotches, the shortly 

 and obtusely lanceolate sepals and their auricles ciliate. 



On dr}- limestone shingle, growing among grasses in the 

 shade of cedars. Very abundant at the foot of the ledge of rocks 

 that runs from the north-east corner of Rideau Hall grounds to 

 the Ottawa River at Governor's Bay. The type locality. Dis- 

 tributed under Herb. No. 18,746. Collected by Prof John 

 Macoun west of the Beaver Meadows, Hull, Que., Herb. No. 

 18,900. First collected at the type station in 1884 and labelled 

 " form 3 " of F. cucullata. 



Viola VENUSTULA, Greene, Pittonia, vol. Ill, p. 335. 



(Plate 1, Fig. 2, c, d.) 



Dwarf with light-green glabrous herbage ; leaves cordate- 

 ovate and deltoid-ovate, acutish, rather sharply and serrately 

 crenate, cucullate when young, the blade less than an inch long, 

 the slender petioles i to 3 inches long; earliest peduncles barely 

 equalling the leaves, the later surpassing them ; corolla large for 

 the plant, often ^ inch or more in breadth, deep violet-blue ; 



