MICHIGAN ACADEMY OP SCIENCE. 217 



A PRELIMINARY LIST OF THE BRYOPHYTES 



OF MICHIGAN. 



BY C. H. KAUFFMAN. 



No extensive collections of this group of plants seems to have 

 been made in the state. Isolated records occur here and there in 

 bryological literature and in a few of our state survey reports. 

 For the present I have limited myself to my own collections which 

 have been mostly made while prosecuting work in various parts of 

 the state along other lines. The collections are therefore not ex- 

 haustive, but represent the most common of our liverworts and 

 mosses. 



HEPATIC^. 



Ricciaccw. 



Ricciella fluitans A. Br., Riccia fluitmid L. Common throughout 

 the state. 



Ricciocarpus natans Corda, Riccia nutans L. Common throughout 

 the state. 

 Marchantiacew. 



Conocephalus conicus Dum. Throughout the state. Fruiting 

 April and May. 



Lunnlaria cruciata Dum. Introduced into greenhouses. Native 

 in the Mediterranean countries of Europe. 



Marchantia polymorpha L. Throughout the state. Fruiting in 

 summer. 



Preissia quadrata Nees. P. comnmtata. South Haven, in de- 

 posits of marl, clay cliff facing Lake Michigan, fruiting in June. 



Reboulia liemisi)herica Raddi. Asterella hemispherica Bauv. 

 Banks along Huron river, Ann Arbor. Fruiting, May-June. 

 Jungermanniales. 

 MetzgeriacaL 



Pallavicinia lyellii S. F. Gray. Holland, South Haven, Ann Arbor. 

 Fruiting, April-June. 



Pellia epiphylla Corda. Throughout the state. Fruiting, April- 

 May. 



Riccardia pinguis. S. F. Gray. Aneura sessilis Spr. Ann Arbor, 

 Ne^v Richmond. Fruiting, May-June. 

 JuugcnnanniacecB. 



Calypogeia snecica. C. Miill. Ann Arbor, New Richmond. 



