FLORA OF THE YELLOWSTONE NATIONAL PARK. 41 



Peucedanum macrocarpum, Nutt. 



With the preceding. Gardiner, 5400 ft. alt. 



Peucedanum nudicaule, Nutt. 



Common from 5500-10,000 ft. alt., especially on bare gravelly sub- 

 alpine .slopes. Gardiner, 5G00 ft. alt. ; Mt. Washburnc, 0500 It. alt. 



Heracleum lanatum, Michx. 



Bogs and along streams up to 8000 ft. alt. Common. 



Ferula multifida, Gray. 



Open woods. East Pelican Creek, 8400 ft. alt. Lewis Lake, 7800 ft. 

 alt. Rather rare. 



CORNACEJE. 



Cornus Canadensis, L. 



East Pelican Creek, 8200 ft. alt. Rare. 



Cornus stolonifera, Michx. 



Near head of Pebble Creek, 8500 ft. alt. Rare. 



CAPRIFOLIACE^. 



Sambucus racemosa, L. 



Open wooded slopes. Blacktail Deer Creek, 7000 It. alt. ; Obsidian 

 Canon ; Upper Falls of the Yellowstone (Adams). Rather local. 



Linnaea borealis, Gronov. 



Common in mossy, damp woods up to 9000 ft. alt. 



Symphoricarpos occidentalis, Hook. 



About Mammoth Hot Springs, Yellowstone Lake C Adams). 



* 



Lonicera Utahensis, Wats. 



Mammoth Hot Springs, 6500 ft alt. Rare. 



Lonicera oserulea, L. 



Bogs. Head of Gibbon River, 8000 ft. alt. ; Yellowstone (Parry). 



Lonicera involucrata, Banks. 



Common on the borders of meadows and in open woods, especially 

 from 8000-9000 ft. alt. 



RUBIACEJE. 



Galium Aparine, L. 



Gibbon Meadows, 7500 ft. alt. ; Mammoth Hot Springs, G400 ft. alt. ; 

 Yellowstone River, 6400 ft. alt. (Coulter). Not common. 



Galium Aparine, L., var. Vaillantii, Koch {G. Aparine, L., var. minor, Hook). 

 Mouth of Soda Butte Creek, 6G00 ft. alt. 



