468 RYDBERG: PHYTOGEOGRAPHICAL NOTES 
The following are important plants belonging to this formation, 
but limited to the southern Rockies: 
Ranunculus Macauleyi Oreochrysum Parryt 
Rhodiola polygama Artemisia saxatilis 
Cerastium Earlei Artemisia Pattersonit 
Trifolium Brandegei Saxifraga debilis 
Relatives of Trifolium dasy- Mertensia brevistyla 
phyllum (T. stenolobum, T. Mertensia viridula 
attenuatum, T. bracteolatum Mertensia lateriflora 
and T. lividum) Mertensia Bakert 
Anthropogon barbellatum Pentstemon stenosepalum 
Polemonium confertum and Salix pseudolapporum 
its relatives Senecio Holmeti 
Micranthes arnoglossa Senecio taraxacoides 
Leptasea chrysantha Senecio Soldanella 
Muscaria delicatula Senecio crocatus 
Tonestus pygmaeus 
The following are common in the northern Rockies, but not 
found in the southern: 
Salix cascadensis Micranthes stellaris 
Salix nivalis Micranthes Rydbergit 
Draba lonchocarpa Micranthes hieractfolia 
Draba nivalis Dasystephana glauca 
Saxifraga rivularis Polemonium viscosum 
Muscaria caespitosa Ranunculus saxicola 
The following belong to this formation but are merely local or 
rare: 
Southern 
Delphinium alpestre Micranthes Vreelandii 
Alsinopsis quadrivalvis Leptasea Hirculus 
Alsinopsis Rossii 
Polemonium Brandeget 
Sagina nivalis 
Draba Parryi 
Alsine polygonoides Cerastium pulchellum 
Chrysosplenium tetrandrum Mertensia Parryt 
Muscaria micropetala 
Artemisia spithamaea 
Micranthes brachypus 
Artemisia Parryt 
