't.lrn 





VEGETATION OF THE HIGH SIERRA NEVADA. 27 



the high Sierra Nevada has been made. The list of plants collected 

 in the Boreal zone by the expedition lias been reduced by removing 

 all species which are not clearly distinguished from their relatives, 

 or which are not distinctly boreal plants, or which from their inconspic- 

 uous appearance may not have been collected widely enough to 

 establish their range. The remaining species, which are believed to 

 constitute a fair representation of the boreal Sierran flora, have 

 been separated into four groups : (a) those confined to the Sierra Nevada; 



(b) those common to the Sierra Nevada and the Cascade Mountains only; 



(c) those common to the Sierra Nevada and Rocky Mountains only; and 



(d) those common to the Sierra Nevada, Cascade Mountains, andEocky 

 Mountains. The list is given herewith : 



List of representative boreal plants collected in the Sierra Nevada. 1 



(a) CONFINED TO THE SIERRA NEVADA. 



Arabia pi aty sperm a Also in Nevada. 



Arctostaphylos nevadensit. 

 Arm aria compa eta . 

 A rtemisia roth roekii. 



Aster andersonii Also in Nevada. 



Bigelovia bolanderi Genus confined ;to North America. 



Bryanihus breweri. 



Chrysopsis breweri Genns confined to North America 



Crepis intermedia pJeuroearjxi. 



hraba lemmoni Also in the Blue Mountains of Oregon. 



Epilobium obcor datum.. Also in Nevada. 



Erysimum asperum perenue. 



Eulophus parishii Also in the San Bernardino and San Jacinto 



mountains of southern California. Genus 



confined to America. 



Gentiana serrafa Jtolopetala Possibly in Oregon. 



Hemitonia whecleri Genus confined to western North America. 



Hut sea ahfida Genus conlined to western North America. 



Lupin us breweri. 

 Lupinits covillei. 

 Orochamactis thysanocarpha. 

 Pedicularis attollens. 

 Finns balfouriana. 

 Potentilla santoJinoides. 

 Potentilla wheeleri. 

 Primula suffrutescens. 



Raillardella p-'qentea Genus confined to western North America. 



Ranunculus oxynotus, 

 Salix macrocarpa argentea. 

 Saxifraaa bryophora. 



Strepfanthus tortuosus Genus confined to western North America. 



Tanaectum can it m Also in Nevada. 



Velcta restita Also in the San Bernardino Mountains. 



1 Farther collecting, especially in the Cascade Mountains, may alter the position 

 of some of the plants in this list. 



