282 MINNESOTA BOTANICAL STUDIES. 



5. Gymnostomiim rupestre Schw. 



Franconia on the St. Croix river, {J. 31. H., July 16, 

 1890). 



6. Weisia viridula Brid. 



Cave near Stockton, (J. M. H., Aug. 9, 1890); Winona, 

 {J. M. H., Aug. 2, 1890); Bear Creek, (-/. M. H., May 

 9, 1894). 



7. Cynodontium polycarpum B. S. var. strumiferum B. S. 



Two Harbors, \j. H. Sandberg, July 9, 1891). 



8. Cynodontium wahlenbergii (B. S.) R. and C. 



Northern Minnesota, {F. F. Wood, 1891). 



9. Dicranella heteromalla Sch. 



Thompson and Two Harbors,* {J. H. Sandberg, June, 

 1891). 



10. Dicranella varia Sch. 



Bear Creek, near Winona {J. M. H., April 19, 1890); 

 Homer {J. M. H., June 17, 1890); Franconia on the 

 St. Croix river {J. M. H., July 16, 1890); also 

 Areola, July 21, 1890; Thompson (J. H. Sandberg, 

 July 9, 1891); Winona [J. M. K, May, 1894). 



11. Dicranuni congestum Brid. 



This may be Dicranum scojyariforme Kindb. Can. 

 Muse. 28. Material for comparison not being at 

 hand, the plant is referred to D. congestum with 

 which it agrees in the isodiametric cells in the upper 

 part of the leaf, and the serrate margin. But it 

 differs from typical D. congestion in the narrower, 

 longer cells in the lower part of the leaf being thin- 

 ner walled, the lamina broader near apex, and the 

 ridges on the back of the costa being stronger and 

 coarsely serrate above the middle. 



Marine Mills on the St. Croix River (J. M. H., July, 1890). 



12. Dicranuni drumniondii C. Muell. 



St. Croix Falls {Miss E. A. Boss, July, 1891). 



13. Dicranuni flagellare Hedw. 



Marine Mills on the St. Croix river {J. M. H., July 20, 

 1890); also Franconia, July 16, 1890, and Trempea- 

 leau Mountain, Wis., June 26, 1890. 



14. Dicranuni fuscescens Turn. 



Northern Minnesota {F. F. Wood, 1891). 



