WOOTON AND STANDLEY FLORA OF NEW MEXICO. 429 



KEY TO THE GENERA. 



Sepals auriculate at the base; flowers mostly large and 



showy ; lower petal spurred 1. Viola (p. 429). 



Sepals not auriculate; flowers small, greenish; upper and 



lateral petals markedly unequal 2. Calceolaria (p. 431). 



1. VIOLA L. Violet. 



Low perennial herbs, acaulescent or with short stems, with alternate stipulate 

 leaves of various shapes; flowers solitary, scapose, on axillary peduncles, often of 

 two kinds, the later ones cleistogamous; petals irregular, the lowermost spurred or 

 saccate at the base; capsules elastically dehiscent. 



The writers wish to acknowledge their appreciation of the assistance of Dr. Ezra 

 Brainerd in the preparation of the account of this genus. 



KEY TO THE SPECIES. 



Plants acaulescent. 

 Leaf blades lobed. 



Lobes of leaves linear or nearly so, numerous, extending 



nearly to the base 1 . V. pedatifida. 



Lobes oblong, few, separate only about half way to the 



base 2 . V. wUmattae. 



Leaf blades not lobed. 



Flowers white 3 . V. pallens. 



Flowers blue. 



Leaves broadly ovate, obtuse; capsules 5 to 10 mm. 



long 4. V. nephrophylla. 



Leaves deltoid, acutish; capsules 10 to 15 mm. long. . 5. V. missouriensis. 

 Plants caulescent. 



Flowers yellow or brownish 6. V. pinetorum. 



Flowers blue or white. 

 Flowers blue. 



Leaves deeply cordate; stems much elongated, 



slender, not cespitose 7. I*. montanensis. 



Leaves rounded to acutish at the base; stems stout, 

 thick, cespitose. 



Leaves glabrous or nearly so s. I '. adunea. 



heaves puberulent 9. V. pubenda. 



Flowers white or nearly so. 



Stipules fimbriate 10. V. reptans. 



Stipules entire. 



Leaves nearly glabrous beneath; petals aol 



n-t use 11. V. canadensis. 



Leaves muriculate-scabrous on both Burn* 



1 .rials retuse 12. V. mvricuUtta, 



1. Viola pedatifida Dun, Hist. Mchl. PI. 1:320. 1831. 

 Type locality: North America. 



Range: Colorado and New Mexico to Saskatchewan ami llliimiH. 

 New Mexico: Sierra Grande; between Park View and Tierra Amarill a, Plains 

 and low bills, in the Upper Sonoma Zone. 



2. Viola wilmattae Pollard & Cockerell, Proc. Biol. Soc. Washington 16: |& 



L902. 



Type locality: SapeQo Canyon, Beulah, New Mexico, Tyj llected bj Mm, 



\\. P i ; in L901. 



