44 CONNECTICUT GEpL. AND NAT. HIST. SURVEY. [Bull. 



4. Cortical cells averaging 0.07 X 0.04 mm; gemmae rare 



R. latifrons 

 Cortical cells averaging 0.04 X 0.025 mm; gemmae two- 

 celled, often abundant R. palmata 



Riccardia pinguis (L.) S. F. Gray. Aneura sessilis Spreng. 



In swamps. April- June. Litchfield: New Milford and 

 Salisbury, Nichols. Hartford: Hartford,. A. H. Graves. 

 New Haven: East Haven (1874), Hall; Orange, Eivus. 

 Middlesex : Cromwell, Evans. 



Greenland to Alaska, and south to the West Indies, Mexico, 

 and Brazil ; Europe ; Asia ; Africa ; Australia. 



Ref. Eaton, 15, 69. Evans, 28, 170. 



Riccardia multifida (L.) S. F, Gray. Aneura multifida 

 Dumort. 



In swamps and on wet rocks. May and June. Litch- 

 field: Salisbury, Evans. Fairfield: Redding, Evans. New 

 Haven: Orange (1876) and Woodbridge, /. A. Allen. 



Newfoundland and Nova Scotia, south to Virginia ; 

 British Columbia to California; Europe; Asia. \'^'4^t~*^ S' J-"^ 



Ref. Eaton, 15, 69. Evans, 28, 170. 



Riccardia sinuata (Dicks.) Trevis. Aneura pinnatiiida 

 Nees, in part. 



On dripping rocks. April and May. New Haven : 

 Hamden (1855), Eaton; Woodbridge, /. A. Allen. 



New England south to New Jersey ; also in British 

 Columbia ; Europe ; Asia. A rare species, the range of which 

 is very incompletely known. 



Exsic. Austin, Hep. Bor.-Amer. No. 115, in part (as 

 Aneura pinnatifida). Miss Haynes, Amer. Hep. No. 36. 



Ref. Eaton, 15, 69. Evans, 28, 170. Underwood, 71, 55 ; 

 72, 726. 



Riccardia latifrons Lindb. 



On rotten logs. May-August. Litchfield: Salisbury, 

 Evans. Tolland: Bolton and Stafford, Nichols. New 

 Haven: Cheshire, Evans; Woodbridge (1879), J. A. Allen. 



