ryamaetis. 49. "a" fresh, "c" inner skin, "d" outer skin, 

 qiii'queflorus. 7. Zacatecas Mex. 

 raceniosus. 63. 



Var. brevisetus. 63. 

 Var. long;i?etus. 63. 

 R:!fae'ensis. 30. Tvpe. Fresh. 

 R ttani. 68. 



refurvus. 42. ; 



deflexiis. 71. 

 rtmulcus. 48. Type. i 



Var. Chloridae. 48. Type, "a" fresh 

 rrptans. 43, 77. 

 revcntiis. 36. 



Var. conjuctus. 36. "a'' from Leiberg. 

 Rosei. 43. Type. 



sabii?onum. 9. "a" from Chloride Ariz, 

 'abulosus. 36. "a" fresh from Moab Utah. 75. 

 Srilmonis. 41. Type, ''a" fresh. 

 Sal'onis. 70. Type. 

 Lcalai is. II. Type. ' ' 



Var. quercetiniis. II. "a" fresh. Type. 

 S'J'affneri. 69. Type. 70. "a" from Sin Luis Potosi Mex. 

 sclerocarpus. 31. "a" fresh from UmatiHa Oregon. 74. 

 Fcopulorum. 63. "a" fresh from Tliistle Utah. 

 S-atoni. 70. Type. 

 S r noi. 32. 

 sericoldeleucus. 6. Type. 



Var. aretioides. 6. Type. 

 Var. tridactylicus. 6. 

 fosquiflorus. 6. Kanab Utah. 

 serntns. II. Type. 



Shockleyi. 74. Type. > 



S .or!ianus. 45, 47. "a'' fresh, 



Var. cyaneiis. 46. ' 



Silersnus. 44. Type. 



Var. cariacus. 44. Type, 

 sim»^licifolius. 5. 



V<?r. caespitosus. 5. 

 Var. spatulatus "a''. 5. 

 FopVoroides. 62. Type. 



Spaldingii. 41. "a" fresh from Baker City Oregon. 

 s;ar i'"lorus. 26. 



Var. majusculus. 26. 

 speirocarpus. 29. 



£1 nophyllus. I. Weiser Idaho, "a" (filipes) from Blackfoot Idaho, 

 sl'puluris. 45. 

 s raturensis. 42. 



slrigul oisus. 42. "a" fresh from Arz. (Rusbyi). 77. 

 Var. gracilis. 42. 

 Var. brevidentatus. 42. 

 sulrcincreus. IT. "a" Willow ?pr. Ariz. 17. 

 fuccunibens. 57, 58. ">" '^"^^ from Umatilla Oregon, 

 sylvaticus. 66. "a" f-* "^resh. 



t (letTrioides. 7. Type, 

 tencllus. I. "a" from British Columbia, Macoiin. "b" from Sprucemont Nev. 



"c" from Green River Woy. 

 tener. 68. 



Var. Brucae. 68. Type. 



Var. Rattanoides. 68. Type. J\ 



Tcnncsseensis. 62. 



