MOSSES. 297 



Bruchia brevifolia Sulliv. 



Dry, exposed sandy ground. Mobile County, Springhill. 

 Louisianian area. Louisiana to Florida. 



Bruchia drummondii Huuipe. B. brevipes Hook. & Wils., not Hook. 1 



With the above, Mobile County, Springhill. 



Louisianian to Carolinian area. Eastern Louisiana, South Carolina, southern Vir- 

 ginia. 



PLEURIDIUM Brid. 



Pleuridium subulatum (Schreb.) Bruch & Schimp. 



Dry exposed ground. Lee County, Auburn, bare hills (Baker $ Earle). 

 Louisianian and Carolinian areas. Florida to Pennsylvania, California. Europe. 



Pleuridium alteriiifolium robustum Sulliv. & Lesq. 



In humid depressions on sandstone rocks. Raccoon Mountains (Lesquereux). 

 Carolinian area. Washington, D. C. Illinois. 



ARCHIDIUM Brid. 



Archidium ohioeiise Schiinp. 



Meadows and waste fields. Raccoon Mountains (Lesquereux). 

 Carolinian area. New Jersey, central Ohio. 



Family PHASCACEAE. 

 ASTOMUM Hampe. 



Astomum ludovicianum Sulliv. A. sullivantii Schimp. 



equent. March, Apr 



New 



Grassy banks, bare borders of fields. Mobile County, frequent. March, April. 

 Louisianian and Carolinian areas. Eastern Louisiana to Florida, north to N 

 Jersey and Ohio. 



Family WEISIACEAE. 

 MOLLIA Schrank. 



Mollia viridula (L.) Lindb. Weisia viridula Hedw. 



Sandy ground, common throughout. Mobile County, March. 



Louisianiau to Alleghenian area. Texas to Florida, north to New England, 

 Canada, Northwest Territory, and Vancouver Island. Europe. 



Mollia loiigiseta (Lesq. & James). Weisia viridula anstralis Aust. 



On sandy ground, Mobile County. Lee County, Auburn (Baker $ Earle). 

 Louisiauian and Carolinian areas. Florida to New Jersey. 



Family DICRANACEAE. 

 TREMATODON Rich. 



Trematodon longicollis Rich. 



Damp sandy ground. Baldwin County, Magnolia Springs; damp rocks, not com- 

 mon. June. 



Louisianian and Carolinian areas. North to New Jersey and Pennsylvania. 



DICRANELLA Schimp. 



Dicranella debilis (Hook. & Wils.) Lesq. & James. 



Damp shaded ground. Mobile County ; walls of ditches, abundant. December to 

 March. 



Louisianian area. Louisiana to Florida and South Carolina. Cuba. 



1 See Bulletin Torrey Club, vol. 21, p. 361. 



