162 IOWA ACADEMY OF SCIENCES. 



T. E. S.: Lyon county, July, 1897, Professor SliUnek: Muscatine 

 county, November 15, 1897, Shimek W- Savaf/e. 



52. ('i/Hiidrofheci>()ii coinpressum Bruch. & Schimp. Not 

 common; growing in damp places near streams, on the 

 ground. Johnson county, May 20, 1896, Professor SJiimek. 



53. ClimacUim 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, '/. E. C imeron: Muscatine county, November 15, 

 1897, Shimek d- Savage: Decorah, March 24, 1898, P. C. Mfjers. 



Tribe Hypne^. 



54. ThuicUum 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 d- 

 Savage. 



55. Thmdhim gracVe 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 d- 

 Savage. 



56. Thuidiiim recogiiitum 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. Cameron: Muscatine 

 county, November 15, 1897, Shimek <(■ Savage. 



57. Tluiidium abietimrm 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. C. Mi/ers. 



58. Broclnithec/ium ketum 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. Brachythecivm hrtum Brid. On the ground among 



