54 Muhlenbergia, Volumt 8 



Near the mouth of the canyon, at 6250 feet was found the 

 beautiful Pentstemoji macranthiis recently described by Miss 

 Eastwood, the P. Pahneri of Watson's list. The throat of the 

 large flower is very little constricted, reminding one somewhat 

 of the flower of the foxglove. The inside of the lower lip is 

 beautifully striped with dark purple. Near by was the humble 

 but sweet scented P. deustus. 



In moist soil on the floor of the narrow canyon at 6400 feet 

 Scutellaria nevadensis occurred sparingly. The type of this 

 was collected in the same county (Elko), but many miles further 

 north on the other side of the range. Golden clumps of Petra- 

 doria pumila were found at 6600 feet near trees, and two hun- 

 dred feet higher Amelanchier utahensis fringed the banks. 



An interesting find at ji^^o i^&i wslS Opulaster alternans^ 

 never definitely reported except from the type locality, Schell 

 Creek mountains, on the eastern border of the state. 



At 7200 feet, where a little moisture made its appearance, 

 Bucephalus elegaus and Artemisia incompta were found. Arte- 

 misia graveolens^ which much resembles A. incompta^ occurred 

 in a similar situation at 8800 feet, but in slate. Up to 8000 feet 

 the formation is limestone, the canyon walls presenting many 

 openings or caves. Above 8000 feet slate was the predominant 

 formation. 



Several clumps of Stanleya collina were found at the base 

 of a limestone cliff at 7600 feet. That this is a distinct species 

 there can be no doubt. 



The scattered growth of vegetation on the higher parts of 

 the range at this place is well shown in the accompanying illus- 

 tration, from a photograph taken at 9000 feet. This is about 

 the upper limit of the mountain mahogany, Cercocarpus ledifol- 

 tus. At 9300 feet vegetation was even more scanty, the closely 

 packed gra\el and stones supporting a scattered growth of Tet- 

 raneuris Tofreyana^ Hymejiopappus cinereus^ Sitanion rigidum^ 

 and a few other plants. The summit of the ridge here lies at 

 about 10500 feet, and with the exception of a few trees of Pinus 

 Jiexilis at about 9800 feet, was bare and barren looking. 



