286 



BROOKLYN BOTANIC GARDEN MEMOIRS 



made up of colorless isodiametric cells, 14-19 m across, sometimes 

 somewhat rhomboidal, smooth, wall 1-1.5/i thick; urediniospores 

 ellipsoid or obovoid, 17-33 by 26-32 fx, wall colorless, 1.5-2.5 ij. thick, 

 very closely and minutely echinulate, pores very indistinct, 10-12, 

 scattered. 



III. Telia unknown. 

 On Loranthaceae : 



Phoradendron villosum Nutt. — Corvallis, Sept. 21, 1915, C. E. 

 Owens, 3377 type. 



Index to Species 



Figures following the names refer to the species numbers in the list. 

 Synonyms are in italics. New names and combinations are in bold-face type. 



Aecidium abundans 59 

 Alaskana 217 

 AUenii 213 

 Aquilegiae 85 

 asperifolii 67 

 Aster um 69 

 Barbarae 135 

 Batesianum 216 

 Bellidis 139 

 Berberidis 151 

 Blasdaleanum 35 

 carneum 184 

 Cinerariae loi 

 Clematidis 85 

 columbiense 116, 215 

 columnare 5 

 Collinsiae 214 

 composilarum Bidentis 140 

 compositarum Silphii 207 

 conorum Piceae 22 

 Delphinii 216 

 Dracunculi 173 

 elatinum 20 

 Fendleri 103 

 fuscum 57 

 Gain ambigum 61 

 Geranii-maculati 153 

 Giliae 150 

 Graeberianum 217 

 Grossulariae 109 

 Helianthi-mollis 112 

 Holboellii 1 1 7 

 HydrophylH 136 

 Hyperici-frondosi 1 90 

 Ligulariae 10 1 . 

 Majanthae 125 



Mertensiae 136 



mono-icum 135 



Myrtilli 27 



nilens 45 



Oenotherae 146 



Ornithogalum 63 



Palmeri 143 



Peckii 146 



Phaceliae 136 



Pirolae 22 



porosum 203 



psendo-balsameum 32 



punctatum 178 



Pyrolae 29 



Rhamni 159 



Sarcobati 167 



Solidaginis 69 



5or6J 43 



Tonellae 214 



Tussilaginis 100 



Urlicae 174 



Violae 176 

 AUodus ambigua 61 



asperior 68 



Calochorli 76 



claytoniala 84 



commutata 89 



Dichelostemmae 96 



Douglasii 97 



Giliae 150 



Jonesii 122 



melanconioides 128 



oregonensis 68 



Palmeri 143 

 Aregma speciosa 33 

 Ascophora disciflora 47 



