164 IOWA. ACADEMY OF SCIENCES. 



logs in damp woods and along streams; very variable. Arm- 

 strong, July 30, 1896, and Spirit Lake, August 1, 1896, Pro- 

 fes.wr Shimek; Johnson county, October 10, 1896, T. E. S.; Dal- 

 las county, July 7, 1897, Professor Shimek. 



71. AmbJystegium riparmm flnitans Lesq. & James. Not 

 rare; growing in the mud or water on the borders of streams. 

 Mason City, May 15, 1896, Professor Shimek. 



72. Gampylium liispidulum Brid. Plants small and pros- 

 trate, with deltoid acuminate leaves; common in wet places on 

 logs or roots of trees. Mason City, July 8, 1896, and Johnson 

 county, September, 1896, Professor Shimek. 



73. HarpicUum adunc.um Hedw. Rare, stems long and float- 

 ing; growing in water. Johnson county, 1895; and Forest City, 

 July 20, 1896, Professor Shimek. 



74. Hypnum imponens Hedw. Not common; growing on 

 decayed logs and roots of trees in damp woods. Johnson 

 county, August, 1895, Professor Shimek. 



75. Hypnum curvifolium Hedw. Plants large, yellowish- 

 green; leaves very crowded and strongly recurved; not rare on 

 decayed logs in damp woods. Johnson county, October 3, 

 1896, T. E. S : Muscatine county, November 15, 1897, Shimek it- 

 Savage. 



76. Hypnum ha/da)iianrim Grev. Not common; growing on 

 sandy hillsides. Muscatine county, November 15, 1897, Shimek 

 (tj Savage. 



77. Hylocomium schreberi Willd. A large moss; not rare on 

 damp, shaded ground; stems red; leaves loosely spreading; 

 orange at base. Henry county, December 29, 1896, and John- 

 son county, March 13, 1897, T. E. S. 



78. Hylocomium triquetrum Linn. Common on the ground 

 and on rocks in damp, shady places; plants large; leaves 

 squarrose. Henry county, December 28, 1896, T. E. S.: John- 

 son county. May, 1897, Professor Shimek; Delaware county, 

 September, 1897, -/. E. Cameron. 



