MICHIGAN GEOLOGICAL AND BIOLOGICAL SURVEY prunulus Fr. .............................................16 orcella Fr..................................................17 Publication 26. Biological Series 5 novaboracensis Pk. ................................. 17 THE AGARICACEAE OF MICHIGAN caespitosus Pk. ....................................... 17 BY Leptonia Fr. ....................................................18 C. H. KAUFFMAN Key to the species.......................................18 VOL. I Leptonia placida Fr.........................................18 lampropoda Fr. ........................................19 TEXT rosea Longyear........................................19 PUBLISHED AS A PART OF THE ANNUAL REPORT OF THE seticeps Atk. ............................................19 BOARD OF GEOLOGICAL AND BIOLOGICAL SURVEY FOR formosa Fr. ..............................................20 1918. serrulata Fr. .............................................20 euchroa Fr. ..............................................20 LANSING, MICHIGAN WYNKOOP HALLENBECK CRAWFORD CO., STATE PRINTERS asprella Fr................................................20 1918 Nolanea Fr......................................................21 Key to the species.......................................21 Nolanea dysthales (Pk.) Atk...........................21 Contents pascua Fr.................................................22 versatilis Fr. .............................................22 Pluteus Fr. ........................................................3 babingtonii Berk.......................................22 Key to the species.........................................4 mammosa Fr. ..........................................22 Pluteus cervinus Fr...........................................4 papillata Bres...........................................23 umbrosus Fr...............................................5 conica Pk. ................................................23 salicinus Fr. var..........................................5 fuscogrisella Pk. ...................................... 23 ephebius Fr. var.........................................5 caelestina var. violacea Kauff..................23 tomentosulus Pk. .......................................6 Eccilia Fr.........................................................23 roseocandidus Atk. ....................................6 Key to the species.......................................24 granularis Pk..............................................6 Eccilia atrides Fr.............................................24 nanus Fr.....................................................6 griseo-rubella Fr. ..................................... 24 caloceps Atk...............................................7 pirinoides sp. nov.....................................24 longistriatus Pk. .........................................7 pentagonospora Atk. var. ........................25 admirabilis Pk.............................................7 mordax Atk. .............................................25 leoninus Fr. ................................................7 Claudopus Smith............................................25 Entoloma Fr. .....................................................8 Key to the species.......................................25 Key to the species.........................................8 Claudopus nidulans Fr. ..................................25 Entoloma lividum Fr..........................................9 depluens Fr..............................................26 scabrinellum Pk. ........................................9 byssisedus Fr. .........................................26 sericellum Fr. ...........................................10 Amanita Fr......................................................26 cyaneum Pk. ............................................10 Key to the species.......................................28 jubatum Fr................................................10 Amanita caesarea Fr......................................29 clypeatum Fr. ...........................................10 phalloides Fr............................................29 rhodopolium Fr.........................................11 verna Fr. ..................................................30 nidorosum Fr. var.....................................11 bisporiger Atk...........................................30 sericatum Britz. ........................................11 virosa Fr...................................................30 griseum Pk...............................................11 porphyria Fr. ............................................30 sericeum Fr..............................................12 peckiana Kauff.........................................31 strictius Pk................................................12 spreta Pk. ................................................31 grayanum Pk............................................13 tomentella Kromb. ...................................32 speculum Fr. ............................................13 recutita Fr. var. ........................................32 salmoneum Pk. ........................................13 mappa Fr. ................................................32 peckianum Burt. var.................................13 muscaria Fr..............................................33 cuspidatum Pk. ........................................14 frostiana Pk. ............................................33 Clitopilus Fr.....................................................14 cothurnata Atk. ........................................34 Key to the species.......................................15 chrysoblema Atk. sp. nov. .......................34 Clitopilus abortivus B. & C. ............................15 solitaria Fr................................................34 woodianus Pk...........................................15 chlorinosma Pk........................................35 subvilis Pk................................................15 russuloides Pk. ........................................35 undatus Fr................................................16 rubescens Fr............................................36 micropus Pk. ............................................16 flavorubescens Atk. .................................36 albogriseus Pk. ........................................16 flavoconia Atk. .........................................36 subplanus Pk. ..........................................16 spissa Fr. ................................................. 37 Publication 26, Biological Series 5 -- Pluteus-Omphalia – Page 1 of 117 Amanitopsis Roze...........................................37 atrocaeruleus Fr. var. griseus Pk. ........... 58 Key to the species.......................................37 applicatus Fr............................................58 Amanitoposis volvata Pk. ...............................38 atropellitus Pk..........................................58 vaginata Fr...............................................38 Tricholoma Fr. ................................................59 strangulata Fr...........................................38 Key to the species.......................................60 Lepiota Fr........................................................39 Tricholoma equestre Fr. .................................62 Key to the species.......................................39 sejunctum Fr............................................62 Lepiota illinita Fr. ............................................40 portentosum Fr. ....................................... 62 glioderma Fr.............................................40 terriferum Pk............................................63 fischeri sp. nov.........................................40 resplendens Fr.........................................63 delicata Fr. var. ........................................40 transmutans Pk........................................ 63 clypeolaria Fr. ..........................................41 ustale Fr...................................................64 felina Fr....................................................41 rutilans Fr.................................................64 acutaesquamosa Fr. ................................42 venenata Atk............................................64 friesii Lasch..............................................42 nobile Pk..................................................65 asperula Atk.............................................42 columbetta Fr...........................................65 acerina Pk................................................42 imbricatum Fr........................................... 65 granosa Morg...........................................43 vaccinum Fr.............................................66 rugoso-reticulata Lorin. ............................43 tricolor Pk.................................................66 adnatifolia Pk. ..........................................43 acre Pk. ...................................................66 granulosa Fr.............................................43 terreum Fr................................................66 pulveracea Pk. .........................................44 fumescens Pk..........................................67 pusillomyces Pk. ......................................44 fuligineum Pk. ..........................................67 cepaestipes Fr. ........................................44 saponaceum Fr........................................68 rubrotincta Pk...........................................44 laticeps sp. nov........................................68