THE FLORA OF MOUNT RAINIER 



CELASTRACEAE. (Staff Tree Family.) 



Pachystima myrsinites (Pursh) Rafinesgue. 



An evergreen shrub two or three feet high, having considerable 

 resemblance to a huckleberry. Common in coniferous woods at 

 3,000 to 4,000 feet elevation. 



EMPETRACEAE. (Crowberry Family.) 



Empetrum nigrum Linnaeus. 



A prostrate cespitose shrub with yew-like leaves and black 

 berries. Common on the rocks at 7,500 feet altitude. 



OXALIDACEAE. (Oxalis Family.) 



Oxalis oregana Nuttall. 



Common in rich, moist woods up to 3,000 feet altitude. 



Oxalis trilliifolia Hooker. 



With the preceding, which it resembles. It may be distinguished 

 by its scapes bearing several flowers, instead of only one, and by 

 its narrow pods. 



LEGUMINOSAE. (Pea Family.) 



Lupinus subalpinus Piper & Robinson. 



The common lupine of the grassy slopes, 4,000 to 6,000 feet 

 altitude. 



Lupinus volcanicus Greene. 



A small species, with hairy pubescence, growing above the limit 

 of the preceding and below that of the following. 



Lupinus lyallii Watson. 



A lovely little plant with silvery foliage. Abundant in the 

 pumice fields at 7,000 to 8,000 feet altitude. 



Lathyrus pauciflorus Fernald. 



A wild pea with purple flowers collected by Allen in the Goat 

 Mountains. 



Lathyrus nevadensis Watson. 



Very like the preceding but with white flowers. Collected by 

 Allen, No. 297, on mountains near the upper valley of the Nis- 

 qually. 



Oxytropis cusickii Greenman. 



Goat Mountains, Allen, No. 245. 



ROSACEAE. (Rose Family.) 



Spiraea densiflora Nuttall. 



A low shrub with dense corymbs of rose-colored flowers. Com- 

 mon in bogs at 4,500 feet, and on rock cliffs up to 6,000 feet eleva- 

 tion. 



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