216 Rhodora INovember 



MESOTAENIUM Nag. 



*M. Endlicherianum var. grande Nordst. Orange. 

 M. micrococcum (Kiitz.) Ry & Bissett. Middle twn (Conn, 

 see 2, p. 57). 



CYLINDROCYSTIS Menegh. 



*C. Brebissonii Menegh. Bethany, Killingworth (a), Madison, 

 Newtown, West Haven. 



NETRIUM Nag. 



N. digitus (Ehrenb.) Itzigs. & Rothe. Bethany, Bethlehem, 

 Branford, Bridgeport (Johnson, see 3, p. 349), Cheshire, Hamden (b), 

 Killingworth, Middlebury, Middletown (Conn, see 2, p. 58), New 

 Haven (a), Orange, Suffield, Thomaston, Washington. 



**N. digitus var. constrictum West & G. S. West. New Haven 

 (b), West Haven (a). 



N. interruptum (Breb.) Liitkem. Middletown (Conn, see 2, p. 58). 



PENIUM Breb. 



P. margaritaceum (Ehrenb.) Breb. Madison, Middletown (Conn, 

 see 2, p. 60), Morris, Orange, Washington. See also Wolle, 10, p. 35. 



P. Navicula Breb. Bethlehem, Middlebury, Middletown (Conn, 

 see 2, p. 60), Suffield. 



P. polymorphum Perty. Bethlehem, Middletown (Conn, see 2, 

 p. 60). 



*P. spirostriolatum Barker. Hamden (b). 

 ROY A West & G. S. West 



R. obtusa (Breb.) West & G. S. West. Middletown (Conn, see 2, 

 p. 60). 



CLOSTERIUM Nitzsch 



*C. abruptum West. Hamden (b), West Haven (a). 



C. acerosum (Schrank) Ehrenb. Middletown (Conn, see 2, p. 60). 



C. acuminatum Kiitz. Phyeol. Germ. 130. 1845. Litchfield, 

 Middletown (Conn, see 2, p. 60). 



*C. acutum (Lyngbye) Breb. Litchfield, Middlebury, Morris, 

 Orange, Southington, Washington, Watertown. 



fC. angustatum var. clavatum Hastings, Am. Month. Mier. Jour. 

 13 : 155. yl. 1, .7. 1892. Bridgeport (Johnson, 6, p. 291; see asol 

 4, p. 113). 



