FLORA OP THE YELLOWSTONE NATIONAL PARK. 59 



Lycopus Virginicus, L., var. pauciflorus, Benth. (L.humilis, Vahl.). 



About hot springs. Yellowstone Lake, Upper and Lower Geyser 

 basins. Norris Geyser Basin. The filiform runners covered with 

 small tubers. 



Brunella vulgaris, L. 



About hot springs with the preceding. 



Dracocephalum parviflorum, Nutt. 



Mammoth Hot Springs, 6300 ft. alt.; Hot Sulphur Springs (Adams). 

 Not common. 



PLANTAGINACE^B. 



Plantago Tweedyi, Gray in Suppl. Flor. N. A. 390. 



Grassy rich meadows north end of Mirror Lake Plateau, 8500-9000 ft. 

 alt. 



NYCTAGINACE.SI. 



Abronia villosa, Wats. 



Sandy beaches of Yellowstone Lake at mouth of Pelican Creek. 



CHENOPODIACEJE. 



Chenopodium olidum, Wats. 



Turbid Lake, 7900 ft. alt.; Stevenson Island, Yellowstone Lake. 



Chenopodium glaucum, L. 



On hot spring formation. Yellowstone Lake and Upper Geyser 

 Basin. 



Chenopodium Fremontii, Wats. 



Rather common in dry situations up to 8000 ft. alt. 



Chenopodium leptophyllum, Nutt. 

 With the preceding. 



Chenopodium capitatum, Wats. 



Mammoth Hot Springs, 6400 ft. alt. ; Turbid Lake, 7900 ft. alt. Yel- 

 lowstone Lake (Adams). 



Monolepis chenopodioides, Moq. 



Turbid Lake, 7900 ft. alt. ; Yellowstone Lake. In muddy places. 



Eurotia lanata, Moq. 



Dry benches. Gardner, 5300 ft. alt. 



Salicornia herbacea, L. 



Lower Geyser Basin (Coulter). 



