286 BROOKLYN BOTANIC GARDEN MEMOIRS 
made up of colorless isodiametric cells, 14-19 wu across, sometimes 
somewhat rhomboidal, smooth, wall 1-1.5 4 thick; urediniospores 
ellipsoid or obovoid, 17-33 by 26-32 u, wall colorless, 1.5—2.5 uw 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 
Allenii 213 
Aquilegiae 85 
aspertfolit 67 
Asterum 69 
Barbarae 135 
Batesianum 216 
Bellidis 139 
Berberidis 151 
Blasdaleanum 35 
carneum 184 
Cinerariae 101 
Clematidis 85 
columbiense 116, 215 
columnare 5 
Collinsiae 214 
compositarum Bidentis 140 
compositarum Silphit 207 
conorum Piceae 22 
Delphinii 216 
Dracunculi 173 
elatinum 20 
Fendleri 103 
fuscum 57 
Gali ambigum 61 
Geranit-maculati 153 
Giliae 150 
Graeberianum 217 
Grossulariae 109 
Helianthi-mollis 112 
Holboellit 117 
Hydrophylli 136 
Hyperici-frondost 190 
Ligulariae 101 
Majanthae 125 
Mertensiae 136 
monoicum 135 
Myrtillt 27 
nilens 45 
Oenotherae 146 
Ornithogalum 63 
Palmeri 143 
Peckit 146 
Phaceliae 136 
Pirolae 22 
porosum 203 
pseudo-balsameum 32 
punctatum 17 
Pyrolae 29 
Rhamnt 159 
Sarcobatt 167 
Solidaginis 69 
Sorbt 43 
Tonellae 214 
Tussilaginis 100 
Urticae 174 
Violae 176 
Allodus ambigua 61 
aspertor 68 
Calochorti 76 
claytoniata 84 
commutata 89 
Dichelostemmae 96 
Douglasit 97 
Giliae 150 
Jonesit 122 
melancontoides 128 
oregonensis 68 
Palmeri 143 
Aregma speciosa 33 
Ascophora disciflora 47 
