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- 
fessor Shimek; Johnson county, October 10, 1896, T. E. S.; Dal- 
las county, July 7, 1897, Professor ShimeJc. 
71. Amblystegium riparium fluitans Lesq. & James. Not 
rare; growing in the mud or water on the borders of streams. 
Mason City, May 15, 1896, Professor Sliimek. 
■ 72. Camptjlium Mspidulum 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 Sliimek. 
73. Harjndium aduneum Hedw. Rare, stems long and float- 
ing; growing in water. Johnson county, 1895; and Forest City, 
July 20, 1896, Professor ShimeJc. 
74. Hypnum imponens Hedw. Not common; growing on 
decayed logs and roots of trees in damp woods. Johnson 
county, August, 1895, Professor ShimeJc. 
75. Hypfuum curvifoUum 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, SJiimeJc S 
Savage. 
76. Hypnum Jialdanianum Grev. Not common; growing on 
sandy hillsides. Muscatine county, November 15. 1897, SJiimeJc 
S Savage. 
77. Hylocomium scJireberi 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. HyJocomium 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 SJiimeJc; Delaware county, 
September, 1897, J. E. Cameron. 
