HYPNACEAE 95 



Hygroamblystegium Loeske, which Brotherus makes a separ- 

 ate genus, contains varium, irriguum, fluviatile, orthocladon , 

 noterophilum and filicinum, and is characterized by aquatic 

 habitat (excl. varium) and stout, percurrent or excurrent costa; 

 leaf cells 2-4: 1, occasionally 6: 1, thick-walled; paraphyllia 

 present in many species. 



A. filicinum (L.) De Not. In wet woods, New Dorp, Court 

 House, and Princes Bay, S. Id., Bx!; "Moist rocks and banks 

 in limestone regions, common," Muse. App. 413; Little Falls 

 and Sussex Co., N. J., Austin, Bx!; Bedford, E. G. B. Spring. 



A. fluviatile (Sw.) B. & S. "On rocks in a rivulet near Clos- 

 ter, N. J,," Muse. App. 386; Willow Brook near Merritt Ave. 

 and spring, Hampton Court!! S. Id.; and West New Brighton, 

 Mosses of S. Id. ; Bronx Park, E. G. B. & R. S. W., Bx! Summer. 



A. irriguum (Wils.) B. & S. "Common," Muse. App. 376 

 and 379, also 360 as A. serpens orthocladon. Cool brooks, New 

 Dorp, Princes Bay, Bulls Head, S. Id.; Cold Spring and Oyster 

 Bay, L. Id.!! Summer. Forma Marianopolitana Dupret. 

 Water in swamp, Bulls Head, S. Id..!! 



A. Juratzkanum Schimp. On rotten wood, Cold Spring, L. 

 Id.: Richmond, S. Id.!! Early summer. Probably frequent 

 but hard to identify. 



A. Kochii B. & S. Moist shaded soil. Common probably. 

 Yard, 360 Lenox Rd. & Prospect Park, Brooklyn!!, New Lots, 

 L. Id.; Swamp at New Dorp and at Richmond, S. Id.!! 



A. orthocladon (P. B.) Kindb. On stones in brooks. Cold 

 Spring, L. Id. (N. Am. Musci PI. 189a); Fresh Kills Bridge and 

 Willow Brook, S. Id.!! 



A. riparium B. & S. Frequent in and near water. Spring. 



• Var. longifolium (Schultz) B. & S. Orient, L. Id., 

 Latham. 



A. serpens (L.) B. & S. Common on the ground and rotten 

 wood in damp places. Spring. Muse. App. 373-384 are so 

 confused as to be difficult to cite. 



A. varium (Hedw.) Lindb. Frequent in moist shaded places. 

 Spring. 



