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VOL. IV.] Colorado Plants. 3 



snow banks, and the buds can often be seen under the thin crust of 

 melting snow. The flowers vary from an inch or more in diameter 

 to a half inch or less. In the San Juan Mountains, above Silverton, 

 it is abundant along the edge of snow banks. The leaves are 

 three-toothed at the truncate apex and entire below; the calyx 

 is thickly covered with soft brown wool. Specimens from the 

 Elk Mountains, above Irwin, have the petals usually entire, but 

 Occasionally flabelliform, leaves altnost orbicular and crenate 

 nearly to the base, the silky wool dense on the calyx. The form 

 from the La Plata Mountains has the calyx either densely or 

 sparingly hirsute; the root leaves oblong-lanceolate; stem leaves 

 not cleft as in the other two forms. 



Ranunculus glaberrimus Hook. Specimens of this from 

 Mancos have cauline leaves entire as well as deeply 2-3-lobed, 

 akenes plainly hispid. I have found no plants with three large 

 blunt teeth at the apex of the leaves. 



Delphinium occiDENTALE Watson. This varies greatly. At 

 Steamboat Springs, in Routt County, it is one of the commonest 

 plants; but rarely could two plants be found with flowers colored 

 alike. They ranged from dark blue to white, and the forms 

 between, where the two shades mingled, were mottled and 

 striped, one part colored blue in one flower, white in another, so 

 infinitely varied that to collect all forms was impossible. Usually 

 \'i is found at subalpine elevations and is dark blue. I have 

 specimens from above Irwin, in the Elk Mountains, in which all 

 parts of the flower have become blue, bract-like petals. 



Aquilegia ecalcarata Eastwood. This has been collected 

 in Southwestern Colorado in but one limited locality, about 

 twenty-five miles from Mancos, near the head of Johnston Canon 

 that forms a branch of the Mancos Caiion. It was abundant 

 under an overarching rock that even late in August was still 

 wet with tne alkali water that oozed from it. The plants were 

 growing in the sandy soil, loosely branching and also climbing up 

 the rocky wall, apparently seeking moisture. The few flowers 

 still in bloom were on stems that clung to the rock, but the plants 

 were full of dry seed pods that indicated their earlier abundance. 

 The pubescence is glandular and the flowers pink or white. 



