Gexus I. 



VIOLET FAMILY. 



561 



42. Viola labradorica Sclirank. Alpine Violet. Fig. 2964. 



V. labradorica Schrank, Denksch. Bot. Gesell. 



Regensb. 2:12. 1818. 

 Viola punctata Schwein. Am. Journ. Sci. 5 : 67. 



1822. 

 I'. Muhlenbergiana var. minor Hook. Fl. Bor. Am 



1 : 78. 1830. 



Rootstock long, tapering, scaly above, some- 

 times branching; stems few, slender, 1-3- 

 leaved. erect or ascending, usually about 2*' 

 liigli, bearing i or 2 petaliferous flowers on 

 long peduncles ; lower leaves long-petioled, 

 blades orbicular, subcordate, glabrous, i'-J' 

 wide; upper leaves on shorter petioles with 

 smaller blades, more or less ovate, obtuse, 

 sparsely hirtellous on the upper surface; stip- 

 ules linear, attenuate, entire or with one or 

 two filiform appendages at tlie base: petals 

 deep violet : sepals lanceolate with round auri- 

 cles ; capsules subglobose, 25" long. 

 Alpine and subarctic ; Greenland and Labrador, south to the high mountains of Maine, New 

 Hampshire and New York. July-Aug. 



43. Viola adunca J. E. Smitli. 



Viola adunca ]. E. Smith in Rees" Cycl. 37 : No. 



63. 1817. 

 Viola longipes Nutt. ; T. & G. FI. N. A. i : 140. 



1838. 

 Viola canina L. var. adunca A. Gray, Proc. Am. 



Acad. 8. 377. 1872. 



Glabrous or nearly so ; rootstock woody, 

 jagged and chalTy from the remains of former 

 leaves ; stems slender, several or many and 

 spreading, ii'-i2' high, bearing 1-3 axillary 

 flowers ; basal and lower stem-leaves long- 

 petioled, the blades ovate, obtuse, finely crenate, 

 subcordate or more or less decurrent at the 

 base, 5"-io" wide ; upper leaves short-petioled, 

 narrower, less rounded at the apex ; stipules 

 linear, attenuate, sparsely spinulose-serrulate ; 

 flowers usually raised above the leaves on 

 peduncles ii'-4' long: petals violet to purple, 

 S"-7i" long, the lateral bearded : spur rather 

 long, often curved upward or hooked; capsules 

 ellipsoid, 3*" long. 



Eastern Quebec, northern New Brunswick, 

 northern Ontario and in the mountains of Colo- 

 rado and California, north to Alaska. May-July. 



Hooked Violet. Fig. 2965. 



Sand Violet. 



44. Viola subvestita Greene. 

 Fig. 2966. 



Viola canina var. puberula S. Wats, in A. Gray. Man. 



Ed. 6, 81. 1890. 

 Viola subvestita Greene, Erythea 5: 39. 1897. 



Finely puberulent, stems several or many, spread- 

 ing. 2'-6' long. Petioles longer than the blades ; 

 stipules linear-lanceolate with incised bristly teeth; 

 blades commonly ovate i'-l' long, crcnulate, obtuse, 

 subcordate ; peduncles slender, longer than the leaves ; 

 sepals narrowly lanceolate; petals violet, spur about 

 3" long, usually straight and blunt, but often with a 

 sharp point abruptly bent inward ; cleistogamous flow- 

 ers and capsules often abundant in late summer ; cap- 

 sule 2i"-4" long; seeds dark brown, nearly l" long. 



Sandy and sterile soil, Quebec and Maine, west to 

 Michigan, South Dakota, and the Rock-y Mountains. 

 Referred in the first edition of this work to the Euro- 

 pean V. arenaria DC. May-July. 



36 



