No. IO.] FRESH-WATER ALGJE. 7 



F. S. Collins (Phycological Notes of Isaac H olden, in Rhodora, 

 vol. 7, p. 222, 1905). Since he identified quite a number of 

 species that we have not found, we have, for the purpose of 

 making this report as complete as possible, included in this 

 list all the species reported by him which we have not ourselves 

 identified. These have been appended to our own list, and 

 are distinguished by being inclosed in square brackets [ ]. 

 We have not given any figures of his species, however, all of 

 the species figured having been personally found by ourselves. 

 In a few cases we have noted the collection of certain species 

 in this state by Hazen and by Setchell. No other extensive 

 collections of Algse are known to us as having been made in 

 the state. 



The figures of plates I to XXXI were drawn by Mrs. 

 Webster, except figures 5, 8, 8a, 10, 28, 31, 45, 47, 49, 54, 54a, 

 55> 57, 59. 65, 72, 72a, 73, 77, 77a, 102, 125, and 147. These 

 together with the 'figures of Plates XXXII to XLIV 

 were drawn by Prof. Conn. Acknowledgment is also made to 

 H. J. Conn from whose work and sketches many of the figures 

 of Plates XXXII to XLIV have been drawn. 



