December 9, 1911 ^07 



One of the interesting species found within the wood lot 

 was Castilleja Tweedyi Rydb., growing along the irrigating 

 ditch. This is an abundant species in the region, and is some- 

 what variable in leaf form, specimens collected at 9000 feet hav- 

 ing narrow lanceolate leaves, while in others they are broadly 

 lanceolate. It is one of the commonest plants of the northern 

 half of the range, occurring at an elevation of 5800 feet in the 

 lowlands along streams, and up to 9000 feet on the ridges, where 

 it is found coloring the borders of thickets on north slopes. 

 These collections considerably increase the range of the species^ 

 as it has not heretofore been definitely reported outside of Mon- 

 tana and VVyoming. Specimens were collected as far south as 

 Lamoille. The determinations are by Dr. Rydberg. 



Aconitiim siibcaesinni Greene, is another species of great 

 altitudinal range. Dr. Greene originally found it "near the 

 limits of snow in the Clover Mountains," but I encountered it 

 only in a wet place in Mr. Smiley's wood lot, and in a wooded 

 swampy place at Lamoille, both places at an altitude of less than 

 6000 feet. 



The type of Carex rnicroptera Mackenzie, was collected in 

 moist gravelly ground on the edge of a hay field at 5900 feet. 

 Mr. Mackenzie has also determined as this species a plant col- 

 lected early in September, 1910, at an elevation of 9400 feet on 

 a moist gravelly slope adjacent to the peak called "Hole in the 

 Mountain," situated several miles back of the type station. 



What appears to be Thermopsis angustata Greene, was 

 blooming in wet places along a ditch. This was also plentiful 

 at Lee, on the South Fork of the Humboldt. The plant is 

 practically from type locality, Star valley, but differs from the 

 type in having much larger and broader stipules, only the up- 

 permost ones approaching the description of "small and narrow." 



Several hours were spent at the Humboldt Wells near the 

 town of Wells on July 27th. The\- are situated in a narrow- 

 strip of meadow land lying between dry, sage brush covered, 

 hills, natural wells with no visible outlet and of uncertain 

 depth. There is marshy ground about some of them, while 

 around others it is firm. Growing in the stiff alkaline soil 



