Quadrat-bisect ,n the half-gravel slide. The face of the trench was cut along the front of the 

 quadrat shown m Plate 26 A: S, Solidago oreophik; A, Allium cemuum; E, Elymus IriticMes, 

 fragments of which are represented in blue; C, Otemagrostis purpurascens; H, Heuchera 

 pamfolia; B, Besseya plantaginea. 



