158 
IOWA ACADEMY OF SCIENCES. 
Armstrong, September 10, 1882, Professor Sliimek; Johnson 
county, March 13, 1897, T. E. S.; Council Bluffs, September, 
1888, Misses Diibal & GavanagJi; Council Bluffs, November, 1898, 
Professor Shimek. 
18. Barhula fallax Hedw. Rather rare; found along the 
roadside on dry clay ground. Johnson county, September 29, 
1896, T. E. S. 
Tribe Grimmie^. 
19. Grimmia apocarjja Hedw. Common on limestone rocks 
in early spring. Johnson county, March 13, 1897, T. E. S. 
Tribe Orthotrichea:. 
20. Ortliotriclium porteri Aust. Not rare; on dry rocks in 
the spring, associated with the preceding. Johnson county, 
March 13, 1897, T. E. S. 
21. Ortliotriclium hracliytrichum Schimp. Common on the 
bark of trees; fruiting in early spring. Johnson county, 
February 3, 1897, T. E. S. 
22. Ortliotriclium hraunii Bruch. & Schimp. Rare; growing 
on trees. Found only in Muscatine county, November 15, 
1897, Shimek d Savage. 
Tribe Physcomitriea:. 
23. Pyramidula tetragona Brid. A very rare species with a 
limited distribution in the United States; collected only on 
ledges of quartzite. Lyon county, July, 1897, Professor Shimek. 
24. Physcomitrium acuminatum Bruch. & Schimp. Not rare 
in southeastern Iowa; growing on low ground, exposed to the 
sunshine. Cedar Rapids, May 15, 1896, and Johnson county, 
May 20, 1896, Professor Shimek; Johnson county, March 15, 
1897, T. E. S.; Pottawattamie county. May, 1897, J. E. 
Cameron. 
25. Funaria hygrometrica Sibth. Common throughout the 
state; growing on the ground in woods and open places. 
Johnson county, April 30, 1896; Keokuk, June 2, 1896; Arm- 
strong, June 30, 1896, and Spirit Lake, August 1, 1896, Pro- 
fessor Shimek; Johnson county, March 13, 1897, T. E. S.; 
Decorah, March 24, 1898, P. C. Myers. 
Tribe Bartramie^. 
26. Bartramia pomiformis ’H.ediw . Very common on shaded 
bluffs bordering streams. Johnson county, April 30, 1896, 
