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Tortula ruralis (L.) Ehrh. Open sandy or gravelly ground: locally 

 abundant. Cecil Bay; Big Stone Bay; Mackinac Island. 



Weisia viridula (L.) Hedw. Gravelly lake bluff; Colonial Point. 



Grimmiaceae 



Grimmia apocarpa (L.) Hedw.* On sunny rocks; local along shore of Burt 

 Lake; common on Mackinac Island. 



Orthotrichaceae 



Orthotrichum affine Schrad.* Trunks of hardwood trees in the woods; 

 frequent. Several localities near Burt Lake; Big Stone Bay. 



Orthotrichum anomalum Hedw. Sunny limestone boulders. Rare at 

 Big Stone Bay; common along shore at Mackinac Island. 



Orthotrichum brachytrichum Schimp.* On hardwood tree in woods ad- 

 joining Smith's Bog. 



Orthotrichum obtusifolium Schrad. Bark of trees in woods; frequent. 

 Reese's Bog; Smith's Bog. 



Orthotrichum sordidum Sull. & Lesq.* Trunks of hardwood trees; fre- 

 quent on Mackinac Island. 



Orthotrichum speciosum Nees. Trunks of trees in woods; frequent. 

 Reese's Bog; Big Stone Bay; Mackinac Island. 



Ulota crispula Bruch. On trunks of broadleaf trees; frequent in open 

 woods. Reese's Bog; Carp Creek; Big Stone Bay. 



Ulota Ludwigii Brid.* On bark of tree in hardwood forest west of Pellston. 



Ulota ulophylla (Ehrh.) Broth. On trunk of tree; Mackinac Island. 



Funariaceae 



Funaria hygrometrica (L.) Schreb. Common on earth in open situations 

 generally, but especially abundant in burnt-over places. 



Bryaceae 



Bryum argenteum L. Locally abundant on earth in a door-yard; Colonial 

 Point. 



Bryum bimum Schreb.* On the ground; common in swampy or wet woods. 



Bryum caespiticium L. Frequent on sandy or gravelly lake shores. Fairy 

 Island; Colonial Point; Cecil Bay. 



Bryum capillare L. Sandy or gravelly ground; frequent in open woods. 



Bryum Duvalii Voit.* Locally abundant in wet open swamp; Reese's Bog. 



Bryum pallescens Schleich.* Local along sandy shore of Lake Michigan 

 near Big Stone Bay. 



Bryum pendulum (Hornsch.) Schimp. Frequent along sandy shore of 

 Lake Michigan, near Big Stone Bay. 



Bryum ventricosum Dicks.* On ground in swampy woods. Reese's Bog; 

 Cecil Bay. 



