160 IOWA ACADEMY OF SCIENCES. 



Tribe Polytriche^. 



36. Catltarinea nndulata Beauv. Somewhat rare; on damp 

 ground in shady woods. Johnson county, May 20, 1896, Pro- 

 fessor Shimek: Johnson county, October 10, 1896, T. E. S.: Dela- 

 ware county, September, 1897, J. E. Cameron: Muscatine county, 

 November 15, 1897, Shimek d- Savcuje. 



37. Catharinea anc/ustata Bruch. & Schimp. More common 

 than the last; growing on drier banks in the woods. Johnson 

 county, September 20, 1896, and Henry county, December 29, 



1896, T. E. S.: Keokuk, June 2, 1897, Professor Shimek: Musca- 

 tine county, November 15, 1897, Shimek A- Savage. 



38. Pogoriaffnii hrevicaule Beauv. Not common; stems 

 short, springing from a dark green tangle of branched, fila- 

 mentous prothalbium; growing on moist banks. Henry county, 

 December 28, 1896, T. E. S.: Muscatine county, November 1897, 

 Shimek & Savage. 



39. Polytrichnm pllifernm Schreb. Rare; the costa of the leaf 

 is prolonged into a long hyaline point. Lyon county, July, 



1897, Professor SJumek: Decorah, March 24, 1898, P. ('. Myers. 



40. Poh/frichioii Ji()ii/)eri)miii Willd. Not rare; growing on 

 the ground in rather dry places. Johnson county, October 10, 

 1886, and Henry county, December 28, 1896, T. E. S. : Delaware 

 county, September, 1897, J. E. Cameron: Muscatine county, 

 November 15, 1897, Shimek <t- Savage. 



41. Polytrivhum coiiniiune Linn. Plants larger than the 

 preceding, with the longer leaves serrate to the base; common 

 in the woods. Johnson county, October, 1896, and Henry 

 county, December 29, 1896, T. E. S. 



Series XL PLEUROCARPI. 

 Tribe Leskeace^. 



42. Tlielia aspreUa Sulliv. A very beautiful moss; common; 

 growing at the base of trees. Johnson county. May, 1896, 

 Professor Shimek: Johnson county, September 20, 1896, and 

 Henry county, December 28, 1896, T. E. S.: Delaware county, 

 September, 1897, J. E. Cameron. 



43. Leskea polycarjia Ehrh. Common in damp woods along 

 streams; growing on the trunks of trees. Johnson county, 

 October 1, 1896, T. E. S. 



44. Leskea obscura Hedw. Plants smaller than theJast, with 

 which it is often associated on trees. Johnson county. 

 May, 1896, Professor Shhnek: Johnson county, February 3, 1896, 

 T. E. S.: Muscatine county, November 8, 1897, Shimek rf- Savage. 



