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JOHN ERNST WEAVER 



part of the root especially is covered with a deeply furrowed 

 bark. These furrows in old roots are sometimes 0.5 inch deep. 

 The taste is characteristic, and a balsam-like substance exudes 

 from the old roots when injured. Five feet and 6.1 inches was 

 determined as the average root depth. Nine plants on a south- 

 west slope gave an average depth of 5 feet and 1 .5 inches; fourteen 

 on a northwest slope, 5 feet and 9.8 inches, and two on a north- 

 east slope, 5 feet. 



^*%fo 



Fig. 12. Two roots of Balsamorhiza sagittata partially uncovered and photo- 

 graphed in place. Note the deeply furrowed bark andextensive system of laterals. 



Geranium viscosissimum {Geranium incisum) {Fig. 13) 



Just as Balsamorhiza is characteristic of dry slopes, so Geranium 

 is found most abundantly on moist northeast hillsides and in 

 the valleys. It seldom occurs abundantly on exposed hillsides. 

 Geranium is a large plant reaching a height of from 20 to 30 



