HEPATIC^E. 



ORDER I. RICCIACE^. 

 i. RICCIA, Micheli. 



1. R. arvensis, AUST., Phil. Acad. Sc. XXI. 232. 



On damp earth which has been covered by spring floods, east 

 side of Leamy'sLake near Hull, Que., Sept., 24th, 1889. (Macoun.) 



2. R. lutescens, SCHWEIN,, 



On the borders of muddy pools east of Belleville, Hastings Co., 

 Ont., Aug. 1 3th, 1868. (Macoun.) 



3. R. Austinii, STEPH. 

 Ontario. (Underwood.) 



4. R. fluitans, LINN. 



Very abundant in Patterson's Creek, Ottawa, Ont.; in the creek 

 in the beaver meadow, west of Hull, Que.; very abundant in the 

 marshes along the Bay of Quinte at Belleville, Ont., and on the 

 south side of Massasauga Point, August 1st, 1873 ; in an old canal 

 between Point Edward and Sarnia, Ont., August I4th, 1901 ; com- 

 mon in a pool at Sicamous, B. C. (Macoun.) In stagnant water 

 near the round-house, Montrose, Ont., July, 1897. (R. Cameron) 



5. R. Sullivantii, AUST. 



On the muddy borders of pools east of Belleville, Hastings 

 Co., Ont., July i6th, 1871 ; on a mud flat near McAdie's mill, 

 Kennebec, Addington Co., Ont., July nth, 1870. (Macoun.) 



6. R. sorocarpa, BISCH. 



Scoresby Sound, East Greenland, Lat. 70 15'. (C. Jansen.) 



