io The West American Scientist. 



ity. My companion, Mr. W. F. Hendsch, kindly outlined a few 

 of the characters for me, which I give below: 



x • * * • * 



* * ■ » « * * 



' ' • 



3 Feet Long. 



i Foot Long 



18 Inches Long 

 Each 10 Inches High 



The above are signs selected at random from the great variety 

 that he had observed on the rocks. The size is approximately 

 indicated. He had been informed that they were intended to in- 

 dicate the different localities where water might be obtained in 

 that region, a straight line attached to a circle representing the 

 trail leading to a tank or pool of water, the circle alone standing 

 for a natural water tank or reservoir or for a spring. The figure 

 above given where the straight line is crossed by a winding one 

 was intended to describe a short cut to the water; the trail 

 (straight line), leaving the wash or ravine and going across a 

 divide a number of times, thus lessoning the distance to the water, 

 instead of following the natural course of the wash. 



C. R. Orcuit. 



NOTES ON THE FLORA OF CUSTER COUNTY 



COLORADO— IL 



Sidalcea maluceflora, Gray. Grows in open ground in the 

 valley, always in damp places, where it is of sufficient abundance 

 for its pink flowers to give a color to the landscape. Also found 

 in Fremont county. 



Sidalcea Candida, Gray. In shady spots by creeks, in the 

 mountains. Also in Summit and Mesa counties. 



Linum perenne, L. Abundant of the typical form up to the 

 lower limit of pines, in open ground. 



Acer glabrum, Tow. Very frequent by creeks as high as 10,- 

 000 feet. Fungus-like growths on the leaves are produced by 

 an insect of the genus Phyioptus. 



Thermopsis rhombifolia, Rich. A Thermopsis, sometimes 

 presenting all the characters of rhombifolia, sometimes tending to 

 montana, makes the valley bright with its yellow blossoms in 

 May. 



Lupinus argenteus, Pursh. Occurs at about 8,400 feet of the 

 var. decumbens, Wats. In the collection of Mrs. M. E. Cusack, 

 an enthusiastic field- botanist resident here, is a specimen from 



