THE FLORA OF MOUNT RAINIER 



flora of Spray Park is best known. The east slopes of 

 the peak have been partially explored, but to the 

 knowledge of the writer no botanist has ever yet col- 

 lected on the west slopes. 



The list of plants here given numbers 315 species. 

 In preparing it, Longmire Springs, altitude 2,850 feet, 

 has been selected as the lowermost limit on the south 

 side of the mountain, and Crater Lake, altitude about 

 3,500 feet, as the limit on the north side. It is quite 

 certain that a considerable number of lowland plants 

 will have to be added to the list here given, and it is 

 possible that a few have been included that will have 

 to be dropped, as the exact place of collection of some 

 species is not clearly indicated on the labels of the 

 specimens. Unless otherwise stated, the notes are 

 based on the writer's observations and specimens, 

 and refer mainly to the Paradise Park region. 



There yet remains much to be done in the study of 

 the Mount Rainier flora. A particularly interesting 

 phase of it lies in the matter of altitudinal distribution 

 of the various species. 



No attempt is here made to list the plants lower than 

 the ferns. The writer has made considerable collections 

 of the fungi, liverworts and mosses ; and Mr. O. D. Allen 

 has also collected the mosses. These plants should 

 receive a larger amount of attention from botanists 

 who visit the mountain in the future. 



The following plants were first described from speci- 

 mens obtained on Mount Rainier : 



Petasites nivalis Greene. 

 Luina piperi Robinson. 

 Prenanthes stricta Greene. 

 Oreostemma alpigena (Torrey & Gray) Greene. 

 Aster amplifolius Greene. 

 Arnica aspera Greene. 

 Castilleja rupicola Piper. 

 Mimulus caespitosus Greene. 

 Veronica allenii Greenman. 

 Pedicularis ornithorhyncha Bentham. 

 s 257 



