The Mountaineer 109 



Sitchensis) so abundant near the west coast, was not 

 seen in the Mount Olympus region, nor was the White 

 Barked Pine (Pinus alhicaulis). The other coniferous 

 trees common in the Cascades were also common here, 

 forming symmetrical clusters through the beautiful 

 grassy meadows. 



Around our camp near the headwaters of the Elwha 

 River was a peculiar blending of plants of low altitude 

 with those of high. Spiraea donglasii and Spiraea den- 

 siflora were growing side by side, as were Hypericum 

 scouleri and Hypericum anagalloides. Hypericum scoul- 

 eri is not a common mountain plant in the western part 

 of Washington. Senecio flettii, a high altitude plant, 

 had found a congenial home in an old orchard, at the 

 base of Mount Angeles. Another example was that 

 of Luina hypoleuca growing low down on an old de- 

 serted ranch. Many other examples might be given. 

 Professor Piper assigns excessive rainfall as the cause 

 of this strange mixture of low and high altitude plants. 



The following plants are known only from the 

 Olympics : Elymus virescens Allium crenulatum, Erysi- 

 mum arenicola, Arabis sp. new, collected at the base of 

 Mount Olympus, Viola flettii, Synthyris pinnatiUda lanu- 

 ginosa, Spiraea hendersoni, Epilobium mirabile, Pole- 

 monium amoenum, Mertensia leptophyUa, Castilleja an- 

 gustifolia abbreviata, Campamda piperi, Aster pauct- 

 capitatns and Arnica betonicaefolia. 



The above list is, doubtless, very incomplete. Some 

 of these, named as peculiar to the Olympics, may be 

 found on some of the high peaks forming the foot hills 

 on the western slope of the Cascades. Many of these 

 peaks have not been thoroughly explored. Vast areas 

 in the Olympics still remain for botanical exploration. 



I have followed the order of arrangement and 

 names of plants as given in Professor Piper's Flora of 

 the State of Washington: 



