154 University 'of California Publications in Botany [Vol. 7 



nevadensis Hark., 224. 

 oblongua Vize, 218. 

 occidentalis Diet., 219. 

 Peckianus Farlow, 191. 

 rolygoni (Pers.) Fuckl., 202. 

 promiuens (DC) Pass., 222. 

 pulchellus Ell. and Ev., 207. 

 punctatus Schroet., 220. 



Euelliae Holw., 227. 

 Scirpi (Cast.) Burrill, 192. 

 Spragueae Hark., 205. 

 Trifolii (Hedw.) Lev., 221. 

 Zygadeni Peck, 200. 

 Uropyxis Amorphae (Curt.) Schroet., 

 229, 

 sanguinea (Peck) Arth., 230, 60. 



VIII. INDEX TO HOST PLANTS 



Abies balsamea, 7, 177; concolor, 7; 



Fraseri, 7; grandis, 184; lasiocarpa- 



184; magnifiea, 7; nobilis, 184. 

 Abronia piuetorum, 70. 

 Acacia Gregii, 181. 

 Acaena tridactyla, 185. 

 Achillea millefolium, 168. 

 Acoiiitum colunibianum, 208. 

 Adenostegia pilosa, 140; rigida, 140. 

 Agoseris barbellata, 172; hirsuta, 



172; plebiea, 172. 

 Agropyron Parishii, 51. 

 Agrostis alba, 63; diegoensis, 63; 



pallens, 190. 

 Allium falcifolium, 82; precox, 85; 



serratum, 82; unifolium, 196; vali- 



dum, 195, 196. 

 Althea rosea, 107. 

 Ambrosia psilostachya, 193. 

 Amelanchier alnifolia, 18, 19; pallida, 



18, 232. 

 Amorpha californica, 229. 

 Andropogon sorghum var. halypensis, 



65. 

 Angelica tomentosa, 122. 

 Antirrhinum assurgens, 141; majus, 



141; nudicum, 141; Nuttalianum, 



141; vagans, 141; virga, 141. 

 Aplopappus squarrosus, 173. 

 Aquilegia truncata, 51. 

 Arabis arcuta, 100; Breweri, 100; 



Holboelii, TOO; palefaeieus, 100; 



perennans, TOO. 

 Arbutus Meuziesii, 179. 

 Arctostaphylos Hookeri, 179; patula, 



179. 

 Aristida bromoides, 49. 

 Armeria viilgaris, 225. 

 Artemisia californica, 156; Douglas- 



iana, 151; dracunculoides, 151; 



elatior, 151; heterophylla, 151, 156; 



Suksdorfii, 151; tridentata, 151. 

 Asarum caudatum, 92; Lemonii, 92. 

 Asparagus officinalis, 83. 

 Aster Chilensis, 11, 152; Menziesii, 



11; occidentalis, 72; radulinus, 11; 



sp., 11, 72. 

 Astragalus leucopsis, 220; lentigino- 



sus, 220; Menziesii, 220; Preussii, 



220; Purshii, 220; pychnostachys, 



220. 

 Atliyrium eyclosorum, 183. 

 Atriplex sp., 191. 

 Audibertia Palmeri, 136. 

 Avena barbata, 63, 66 ; f atua, 63 ; 



sativa, 63. 

 Baccharis consanguinea, 16; pilularis, 



16; viminea, 17. 

 Balaamorrhiza deltoidea, 153; sagit- 



tata, 153. 

 Beloperone californica, 227. 

 Berberis nervosa, 230; pinnata, 54, 



230; repens, 230. 

 Beta chicla, 203; vulgaris, 203. 

 Bidens expansa, 228; pilosa, 228. 

 Boisduvalia densiflora, 117; sparsi- 



flora, 117. 

 Brodiaea capitata, 87, 88, 197. 

 Bromus carinatus, 51; hordaeeus, 51; 



marginatus, 51; villosus, 51. 

 Calochortus albus, 84; bisceptrum, 



84; elegans, 84; maweanus, 84; 



venustus, 84. 

 Caltha Howellii, 102. 

 Calylptridium umbellatum, 205. 

 Campanula persicifolia, 9. 

 Carex Douglasii, 73; marcida, 80; 



obnupta, 75 ; siccata, 81 ; usta, 73 ; 



sp., 72. 

 Castilleja douglasii, 12; foliolosa, 12, 



142; latifolia, 12; Martini, 12; min- 



iata, 12, 13 ; Wightii, 12. 



