INDEX TO VOLUME XII 



New names, and the nnar members of new combinations, are in bold-face type 



Abies, ii, 41, 144, 288; balsamea, 33, 

 284; grandis, 11, 41; lasiocarpa, 

 33, 35 



Acacia, 160 



Acer saccharum, 284 



Acolium, 220 



Acremoniella, 127 



Acremonium danysz, 70 



Acrospermum, 175, 176, 

 compressum, 175, 176 

 181 ; compressum foliicolum, 

 compressum graminum, 178, 

 corrugatum, 1! 



178, 

 177- 



180; 

 179, 

 178; 

 181 ; 



foliicolum, 177, 



178; fultum, 180; graminum, 177, 

 178; Maxoni, 179, 180, 181; Puig- 

 garii, 179 



Acrospermum, Observations on the 



genus, 175 

 Actaea, 293 ; alba, 292 ; rubra, 292, 



293, 294 

 Actinomyces, 57 

 Actinonema, 314; Rosae, 267 

 Adams, J. F., Darluca on Perider- 



mium Peckii, 309 ; The alternate 



stage of Pucciniastrum Hydran- 



geae, 33 



Additions to the polypores of tem- 

 perate North America, Corrections 

 and, 6 



Adelia, 188; ligustrina, 187, 188, 197 

 Adiantum, 96, 319; latifolium, 318; 



petiolatum, 319 ; pulverulentum, 319 

 Aecidium, 310; Allenii, 144 

 Aesculus pavia, 104 

 Agaricum porosum, 48 

 Agaricus, 324; campester, 37 

 Aglaophenia latecarinata, 103 

 Agoseris turbinata, 147; villosa, 147 

 Agrimonia gryposepala, 34 

 Agropyron repens, 293, 294; Richard- 



sonii, 293, 294; scabrum, 310; 



Smithii, 294 ; spicatum inerme, 



281 ; tenerum, 294 

 Alboffia oreophila, 207, 254 

 Aleuria, 132 



Aleurodiscus, 288, 344 ; acerinus, 2?" 

 amorphus, 288 ; apiculatus, zi 

 botryosus, 288 ; candidus, 2I 

 cremeus,, 288 ; Farlowii, 288 ; ni- 



vosus, 



Oakesii, z\ 



penicil- 



latus, 288 ; seriatus, 288 ; strumo- 

 sus, 288; tenuis, 288; Weirii, 288 



Alisma plantago, 276 



Allodus Palmeri 144 



Alsine nitans 280 



Alternaria, 126 



Alternate stage of Pucciniastrum 



Hydrangeae, The, 33 

 Amanita chrysoblema, 166; Wellsii, 



292 



Amelanchier 202; alnifolia, 144, 201, 

 203 



Amomum, 94 



Amphonyx cluentus, 64, 66 



Amsinkia intermedia, 276 



Amsonia, 184; amsoniae, 184; ciliata, 

 183, 184 



Andira jamaicensis, 317, 320 



Andropogon bicornis, 319 



Antennaria, 209 



Anthophora zonata, 64, 66 



Anthostoma, 55; taeniospora, 199 



Anthurium dominicense, 319 



Anthurus borealis, 37 



Aplanobacter stizolobii, 298 



Aposphaeria, 246 ; clavatum, 246 



Arabis Lyallii, 146 



Aristida portoricensis, 319 



Armillaria mellea, 114, 335; nardos- 

 mia, 61 ; putrida, 324 



Arnica chamissonis, 276 ; cordifolia, 

 276 ; latifolia, 145 ; mollis, 147 



Arrhenatherum elatius, 280 



Artemisia abrotani, 204 ; biennis, 200 



Aschersonia, 93, 94, 95, 96, 97, 98; 

 tahitensis, 94 ; turbinata, 93 



Ascobolus, 122, 123, 125, 130, 132; 

 carbonarius, 117, 122, 124, 126; 

 furfuraceus, 121, 132; magnificus, 

 115, 121, 122, 123, 124, 126, 127, 

 128, 131, 134, 343; parasitica, 122, 

 123, 132; Winteri, 117, 122 



Ascobolus magnificus, The life his- 

 tory of, 115 



Ascochyta, 314; Bernmullerii, 174 



Ascogenous fungus, Penicillium spic- 

 ulisporum, A new, 268 



Ascoidea, 126 



Ascophanus carneus, 126, 133 

 Ascospora, 313 



347 



