177] 



FLORA OF BOULDER, COLORADO 



2 9 



R. Fendleri 

 R. aciculata 

 R. Maximiliani 

 Prunus Pennsylvanica 

 P. melanocarpa 

 Geranium Richardsonii 

 Acer glabrum 

 Epilobium adenocaulon 

 Circaea alpina 

 Aralia nudicaulis 

 Svida stolonifera 

 Heracleum lanatum 

 Angelica ampla 

 Dodecatheon radicatum 

 D. sinuatum 



Mertensia pimctata 

 M. viridula 

 M. lanceolata 

 Collinsia tenella 

 Mimulus floribundus 

 Veronica Americana 

 Distegia involucrata 

 Adoxa Moschatellina 

 Solidago Pitcheri 

 S. polyphylla 

 Gymnolomia multiflora 

 Rudbeckia laciniata 

 Bahia dissecta 

 Senecio hydrophyllus 

 S. perplexus 



Amarella scopulorum 



d. Rimosae. The crevice and cranny vegetation of the 

 rocks consists of lichens, rupestrine ferns, alum roots, orpines, 

 selaginellas, and many shrubs, such as the Jamesia, the wax- 

 currant, juneberries, flowering raspberries, salmonberries, 

 roses, and gooseberries. The Rocky Mountain red cedar 

 stands often in grotesquely gnarled and twisted forms at 

 the verges of the crags. It mav be remarked that this flora 

 is of prime importance, since so large a portion of the region 

 consists of naked rock. In fact the foot-hill flora in general 

 is more or less rupestrine in character. There is gathered here 

 only the strictly rock-loving vegetation. These are typical 

 species : 



Polypodium hesperium W. oregana 



Dryopteris Filix-mas Filix fragilis 



Woodsia scopulina Cryptogramma acrostichoides 



