320 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



4. Mitella ovalis Greene, Pittonia 1: 32. 1887. 

 Mitella hallii Howell, Erythea 3: 33. 1895. 

 Type locality: Mendocino County, California. 

 Range: Washington to north California near the coast. 

 Specimens examined: Hoquiam, Lamb 1056; Quinault, Conard225. 



5. Mitella micrsuitha Piper, Erythea 7: 162. 1899. 



Type lc)c.\liti*: Fort Colville, Washington. Collected by Watson. 

 Range: Known only by the type specimen. 

 Specimens examined: Fort Colville, Watson 135. 



6. Mitella stauropetala Piper, Erythea 7: 161. 1899. 

 Type ixx:ality: Craig Mountains, Nez Perce Cofunty, Idaho. 

 Range: Idaho. 



Common near the Washington line and to be expected on Kamiak Butte and in the 

 Blue Mountains. 



7. Mitella triflda Graham, Edinb. New Phil. Journ. 7: 185. 1829. 

 Mitdlopsis hookeri Meisn. PI. Va.sc. Gen. 1: 100. 1836. 



Tti'pe locality : Type raised from seeds presented by Mr. Drummond " after the return 

 of the last overland journey to the arctic coast of America." 



Range: Washington to Saskatchewan. 



Specimens examined: Olympic Mountains, Flett 83; Mount Rainier, AUen 7; Goat 

 Mountains, AUen 195; Mount Stuart, Sandberg d; Leiberg 815; Mount Baker, Flett 858; 

 west Klickitat County, Suksdorf 122; Wenache Mountains, Cotton 1281. 



Rydberg o separates the Cascade and Olympic Mountain plant from that of the Rocky 

 Mountains as Ozomelis pacifica. The distinction relied upon is the slightly larger size of 

 the calyx and corolla. 



8. Mitella diversifolia Greene, Pittonia 1 : 32. 1887. 



Mitella diversiloba Greene; Piper, Erythea 7: 162. 1899, err. typ. 



Type locality: "From the same region as the preceding," i. e. "summit of Trinity 

 Mountains, California." Collected by C. C. Marshall. 

 Range: North California to Washington. 

 Specimens examined: White Salmon River, Suksdorf 13. 



HEUCHEBA. 



Stamens exserted; flowers in loose panicles. 



Leaf lobes triangular, acute ; herbage glabrous 1. H. glabra. 



Leaf lobes rounded ; herbage pubescent, at least the under 



leaf surface 2. H. micraniha. 



Stamens included. 



Flowers in a loose raceme i S. H. racemosa. 



Flowers in a spike or spike-like panicle. 



CaljTc white; leaves subcoriaceous, glabrous. 



Stems and petioles glabrous ^. H. glabella. 



Stems and petioles villous 4&. H. glabella columbiana. 



Calyx green, leaves not subcoriaceous. 



Leaves thin, glabrous 7. H. tenuifolm. 



Leaves thickish, not glabrous. 



Pubescence villous or hirsute 5. ^. cylindrica. 



Pubescence glandular. 



Spike 2 to 4 cm. long 6. H. ovalifolia. 



Spike less than 2 cm. long 6a. H. ovalifolia alpina. 



oN. Am. Fl. 22^:95. 1906. 



