PLANTS OF THE ARAPAHOE FOREST 
57 
creek just above the camp three of these little ponds were ob- 
served. The dam consisted of small logs and vegetable matter 
overgrown with several species of willows. In these bogs we 
observed Betula glandulosa, Salix irrorata, Rumex densiflorus, 
Trollius alhiflorus, Parnassia fimhriata, Geum strictum, Pyrola 
secunda, P. chlorantha and Polemonium confertum. In the burned 
over area the most conspicuous plants were Phacelia sericea, 
Photo, by MacDonald 
Fig. 5. Alpine Fir {Abies lasiocarpa) Mount Byers 
Dracocephalum parviflorum, Samhucus microbotrys, Gayophytum 
ramosissimum, Chamaenerion augu.stifolinm, Arnica cordifolia and 
Cirsium foliosum. Of the strictly Alpine plants at high altitude 
the following may be enumerated: Cirsium eriocephalum, Trifoli- 
um dasyphyllum, T. nanum, Castilleja integra, C. pallida, Cam- 
panula rotundifolia, Tonestes pygmaeus, Brigeron elatior, B. gla- 
bellus, B. unidorus, Rydbergia grandidora, Actinella acaulis, Arni- 
ca fulgens, Hieracium albidorum, Primula Parryi, Silene acaulis, 
Sedum integrif olium, S. Rhodanthum, S. stenopetalum, Heuchera 
parvifolia, Saxifraga austromontana, S. argentea, Dryas octo- 
petala, Gentiana Romansovii, G. Parryi, Ribes Coloradense and 
Swertia scopulina and numerous willows. The timber line coni- 
fers in the region are Pinus Murrayana, Picea Bngelmanni and 
Abies lasiocarpa. 
