Nelson : New Plants from Wyoming 259 



more rarely exceed the raceme : peduncle short or none : the 

 pedicels slender, more or less nodding, the lowest elongated : 

 sepals elliptic, obtuse : petals obovate, retuse or emarginate, some- 

 times nearly obcordate. 



The range of this species is the Rocky Mountains of British 

 America, south as far as northern Wyoming; my no. 5608, Yel- 

 lowstone Park, July 1, 1899, represents the most southern locality 

 known to me. 



The specimens cited from the Sierras of California and from 

 the Wasatch of Utah, I suspect, belong to the following. 



> Claytonia lanceolata sessilifolia 



C. Caroliniana sessilifolia Torrey, 1. c, and of Brewer & Wat- 

 son, Bot. Cal. 



Corm and radical leaves similar to those of the preceding : 

 stem leaves longer, usually oblong-lanceolate, 2-5 cm. long : 

 peduncles longer, the racemes at length distinctly surpassing the 

 leaves : sepals subacute : petals spatulate to obovate, entire, 

 rounded-obtuse, pale rose color with purple veins. 



This variety seems to range from California eastward to Colo- 

 rado and Wyoming, in latitudes distinctly to the south of the 

 species. That there are differences between the more eastern and 

 the far western forms of it is certain. Also great variation in the 

 plants of different altitudes, but these are so inconstant that, with 

 our present knowledge of them, they may not be separated. 



J 



Claytonia multicaulis 



Stems few-several (3-8) from each tuber, spreading loosely 

 in all directions, with ascending inflorescence, 5-15 cm. long: 

 root leaves probably always present, 1 -several from each tuber, 

 about equaling the stem proper, narrowly oblong to oblanceolate, 

 the blade as long or longer than the petiole : the stem leaves nar- 

 rowly oblong or lanceolate, obtusish, 2-4 cm. long, so situated as 

 to divide the stem (including the inflorescence) into approximately 

 equal parts : inflorescence 5-9-flowered, on a peduncle 1—2 cm. 

 long, a broadly ovate, obtuse, green bract at the base of the low- 

 est pedicel : pedicels slender, 2-3 cm. long, subumbellate, the tip 

 nodding-recurved except in anthesis : sepals rhomboidal, obtuse, 

 less than half as long as the petals, thin and drying a light yellow, 

 as does also the base of the petals : petals broadly elliptic to oval, 

 abruptly narrowed at base into a very short claw, 7-10 mm. long, 

 white with pinkish or purplish veins. 



