162 
IOWA ACADEMY OF SCIENCES. 
T. E. S.; Lyon county, July, 1897, Professor Bliimek; Muscatine 
county, November 15, 1897, Shimek & Savage. 
52. GyUndrotliecium eompressuin Bruch. & Schimp. Not 
common; growing in damp places near streams, on the 
ground. Johnson county, May 20, 1896, Professor Shimek. 
53. Glimacium americanum Brid. A beautiful moss, very 
common on damp, shady ledges of rock, or on the ground or 
decayed logs in damp places. Johnson county. May 20, 1896, 
Professor Shimek; Johnson county, October 3, 1896, and Henry 
county, December 28, 1896, T. E. S.; Delaware county, Septem- 
ber, 1897, J. E. Gameron; Muscatine county, November 15, 
1897, Shimek J Savage; Decorah, March 24, 1898, P. G. Myers. 
Tribe Hypne^e. 
54. Thuiclium scitum Beauv. Not uncommon on decayed 
logs or on the ground in damp places. Johnson county, 
October, 1895, Professor Shimek; Johnson county, March 13, 
1897, T. E. S. ; Muscatine county, November 15, 1897, Shimek & 
Savage. 
55. Thuiclium gracile Bruch. & Schimp. On decayed logs 
in damp woods; less common than the preceding, from which 
it may be distinguished by its more turgid and nodding 
capsule. Muscatine county, November 15, 1897, Shimek & 
Savage. 
56. Thuidium recognitum Hedw. Not rare on old logs or on 
the ground in damp, shady places; a very beautiful form, with 
large, frond-like stems, which are bipinnately branched. John- 
son county, 1895, Professor Shimek; Johnson county, October 
13, 1896, and Henry county, December 29, 1896, T. E. S.; Dela- 
ware county, September, 1897,- J. E. Gameron; Muscatine 
county, November 15, 1897, Shimek & Savage. 
57. Thuidium ahietinum Linn. Not common; growing on 
damp, shaded rocks; rarely found in fruit; the simple stems 
are pinnately divided into rather thick, nearly equal branches. 
Decorah, March 24, 1898, P. G. Myers. 
58. Brachythecium IcEtum Brid. Common in woods and 
shaded places on the ground; capsule turgid. Johnson 
county, October, 1895, Professor Shimek; Johnson county, Octo- 
ber 13, 1896, and Henry county, December 28, 1896, T. E. S.; 
Keokuk, June 2, 1897, Professor Shimek; Muscatine county, 
November 15, 1897, Shimek & Savage. 
59. Brachythecium Icetum Brid. On the ground among 
