59 



LINCOLNSHIRE FRESHWATER AL(i/E. 



J. LARDER, 



Louth ; formerly Cryptogamic Secretary, Lincolnshire Naturalists' i'uion. 



The following- list is the second part of notes for a future 

 cryptogam ic flora of Lincolnshire, and comprises all the records 

 at present on the register of the Lincolnshire Naturalists' 

 Union in this branch of botany. Though very incomplete, it 

 may be found of some interest and value, as showing what has 

 already been done in the county. A large number of the 

 records have been made by Mr. T. Spencer Smithson, of 

 Rochdale (chiefly in the Sturton district), and I am indebted to 

 him, as well as to Mr. William West, for identifying specimens 

 taken by myself. As with the moss list, so in this case, 

 Mr. J. Burtt Davy (now of the University of California) com- 

 menced the compilation of this list. The numbers of the 

 Lincolnshire Natural History Divisions are prefixed to the 

 various localities. 



Sciadium arhuscula. 9. Saltfleetby (J. Larder). 



Nostoc caeruleum. 6 West. Sturton district (T. Spencer 

 Smithson). 



Nostoc commune. 13 West. Caythorpe (J. B. Davy). 



*Tolypothrix coactilis. 6 West. Sturton district (T. S. 

 Smithson). 



*Spirulina oscillarioides. Sturton district (T. S. Smithson). 



Rivularia dura. Sturton district (T. S. Smithson). 



Protococcus pluviatilis. Sturton district (T. S. Smithson). 



Scenedesmus acutus. Sturton district (T. S. Smithson). 



Scenedesmus obtusus. Sturton district (T. S. Smithson). 

 9. Saltfleetby (J. Larder). 



Scenedesmus quadricauda. 6 West. Sturton district (T. S. 



Smithson). 10 North. 'Jordan's Ponds,' Woodhall Spa 

 (J. Larder). 



Pediastrum boryanum. 6 West. Sturton district (T. S. 



Smithson). 10 North. ' Jordan's Ponds,' Woodhall Spa 

 (J. Larder). 



Pediastrum Ehrenbergii. 6 West. Sturton district (T. S. 



Smithson). 10 North. 'Jordan's Ponds,' Woodhall Spa 

 (J. Larder). 



1902 February i. 



