SUPPLEMENT TO THE FLORA OF MONTANA. 83 



the figure shows the flowers larger and the peduncles longer than 

 the normal, due doubtless to cultivation. V ' . aurea, Kellogg. (Proc. 

 Calif. Acad. 2:185, fig. 54) is quite a different species. Praemorsa has 

 leaves entire, inconspicuously serrulate or somewhat undulate and, 

 except one or two of the earliest, pinnately nerved, is much less cau- 

 line, and has a praemorse root while aurea more frequently has pal- 

 mately nerved and sinuate-dentate leaves, is decidedly cauline and 

 lias a long perpendicular, branching rootstock. There is a similar 

 confusion between V. praemorsa and V . Nuttallii, Pursh, and Hooker's 

 figure (FI. Bor. Am. i 179) seems nearer V . flavovirens, Pollard, 

 while his var. major can hardly be anything else. V . Nuttallii can 

 easily be distinguished by its longer, narrower, more tapering leaves, 

 narrowed into the petiole at base and by its long, deeply penetrating 

 roots, very different from the thick, premorse root of praemorsa. 

 The latter is common in the valleys and plains of the state below 5000 

 ft., passing above into the mountain V. flavovirens, Pollard, while 

 V. aurea is subalpine at 8000 feet and above. V. Nuttallii occurs with 

 V. pra'cmorsa, but on dry sandy hillsides and dry uplands; praemorsa 

 affecting the flats and moister situations. 



Viola praemorsa altior, n. var. A tall, diffuse form of praemorsa 

 with larger leaves on long petioles and less cordate at base, stems 

 often produced and exceeding the leaves and roots often long and 

 fibrous like Nuttallii. Resembles V . 'flavovirens in leaf but is clearly 

 only a rank form of praemorsa growing in loose shady soil or culti- 

 vated land. Bozeman, June 20, 1899; M a 7> 18, 1901; Sweet Grass 

 River near Melville, June 16, 1902; Lombard, June I, 1901. 



Viola renifolia, Gray. In damp woods. Belton, Aug. 19, 1902. 



Viola retusa, Greene, Pittonia, 4: 6. Our specimens differ from 

 Greene's description in having the peduncles longer than the leaves, 

 the petals white, varying to blue, and by no means always retuse. 

 Not the same as V ' . cognata, Greene, which is found here about moun- 

 tain brooks and springs in more or less shady places. 



In wet alkaline flats along Beaver Cr., Wibaux, May 25, 1902; 

 Custer Station, May 29, 1890. 



Viola sarmentosa, Dougl. Yellowstone, July 9, 1802. "R. N. 

 Brandegee. 



