

PREFACE 



This report is tin- result of a series of surveys initiated in the 

 summer of L906. During that season the shore of Lake Superior 

 was visited at six |ioints: Satilt Ste. .Marie. Munising, Marquette, 

 Huron Mountain, Houghton and Isle Royale a1 Washington Island. 

 In the summer of L905 the region around Bay View in Emmet 

 County was well covered in an independent study and these results 

 are also incorporated. During 1!»<»7. L908 and L909, the flora of Ann 

 Arbor, Jackson, Detroit and neighboring regions was studied. In 

 L910, 1911, 1912 and 1913, portions of the summers were spent at 

 New Richmond, Allegan County. Brief trips were made to other 

 points in the state: to Negaunee, Alpena, South Haven, etc, but due 



to dryness or to the time of year, comparatively little material was 



obtained. At all these places a considerable area was covered so as 

 to include all possible habitats. 



The purpose of the report is primarily to afford the people of 

 Michigan a comprehensive account of the Agaric flora of the State. 



The extended study necessary to determine the material soon 

 showed the need of critical notes for many species. Hence the 



report has developed into a manual of considerable size since 

 it seemed worth while to include a large amount of general as 

 well as scientific information, such as is widely scattered in 

 hooks and journals and is not accessible to most readers. There 

 resulted a twofold arrangement of the commentary under the 

 different species: first, an effort i<> simplify the identification of 

 a species through suggestive comparisons and data of interesl noi 



given in the formal descriptions; second, critical discussions, from 

 a more purely scientific standpoint, intended for advanced students 

 and mycologists. Many species, especially those of •-mall size and 

 for which a microscope is essential for identification, have been 



discussed in the notes solely for the specialist. But e\ci\ ellort 



has been made to clarify the descriptions <>i the larger mushrooms 

 to the advantage of the beginner. 



All descriptions of species not in quotation marks were drawn 

 from fresh plants collected in most cases i>\ myself or senl t<> me 

 immediately after picking. The reported spore-measuremenU of 



nil 9UCh, except a few where noted, hnr, hi , ,i mmh hit n>r and all 



