FLORA OF THE YELLOWSTONE NATIONAL PARK. 55 



BORRAGINACEJE. 



Echinospermum floribundum, Lehm. 



Common about Mammoth Hot Springs. 



Echinospermum Redowskii, Lehm., var. occidentale, Wats. 



Mammoth Hot Sijriiigs, 6400 ft. alt.; Yellowstone Lake (Adams). 

 Rare. 



Omphalodes nana, Gray, var. aretioides, Gray (Eritricliinm nanum, Schrad., 

 var. aretioides, Herder.) 

 On most of the high alpine summits throughout. 



Krynitzkia Californica, Gray. 



Mviddy shore of ponds at outlet of Yellowstone Lake. 



Krynitzkia ambigua, Gray (Eritrichiummuriculatmn, var. amhi<juvm, Gray). 

 Common on open dry slopes at low elevations. 



Krynitzkia Torreyana, Gray {Eritrichium leiocarpum, Wats., Bot. King Ex., 

 in part). 

 With the j)receding. 



Krynitzkia crassisepala, Gray. 

 Mammoth Hot Springs. 



Krynitzkia sericea, Gray (Eritrichium glnmeratiim, var. /inmilc, Gray). 

 Dry benches, Gardiner, 5300 ft. alt. 



Mertensia Sibirica, Don. 



Wet meadows, slopes and along mountain streams. Very common, 

 from 8000-9000 ft. alt. Flowering in August. 



Mertensia lanceolata, DC. 



At lower elevations and less common. Flowering in June. 



Mertensia alpina, Don. 



Wet subalpine and alpine slopes. Common. 



Myosotis sylvatica, Hoffm., var. alpestris, Koch. 



Common throughout, from GOOO-10,000 ft. alt. 



SCROPHULARIACE^. 



CoUinsia parviflora, Dougl. 



Common throughottt at low altitudes. 



