CHARA, (L.) Ag. 



C. coronata, A. Br. 

 Weweeder Pood, Morong. 



C. coronata, A. Br. , var. Schweinitzii, A. Br. 

 Sesachacha Pond, M. L. 0. 



C. crinita, Wallr. L. L. D. 



C. crinita, Wallr. , forma leptosperma. 



Brook in Polpis, M. L. 0., 1881. Coskaty Pond, Morong, 

 1887. In Sesachacha Pond a little longer and more delicate 

 form than that from Coskaty, F. S. Collins, 1885. 



C. fragilis, Desv., var. delicatula, A. Br. 

 P. S. Collins. 



The list of marine algae shows only in part the wealth of the 

 island beaches in this order. Mr. Collins, who furnishes it, like 

 the rest who have contributed to this Catalogue, could spend 

 but a short time in Nantucket, and while the number of names 

 shows how diligently he collected, he says in a letter, " There 

 are species which I have not included in this list, though I feel 

 morally certain that they would be found if one could be on 

 hand to look for them at the proper season, but I think the 

 only safe rule is to publish nothing as belonging to a locality, 

 unless it has been actually found there." 



A farther quotation from his letter is added to amplify the 

 title somewhat and explain the references in the list. "I in- 

 clude what marine algae I have myself collected in Nantucket, 

 what I have seen in specimens collected by others, and a few 

 additional species which I have not seen myself from the island, 

 but which are on record in Harvey's Nereis or Farlow's Manual. 



" Where in my list I give no name of collector, it means that 

 I have found the species myself ; and where I give a particular 

 locality, that I found it at that place. Where Mr. Dame's 

 initials are given, I have not myself collected that species, but 

 have examined Mr. Dame's specimens ; all other species have 

 been put in on the authority of records in the Nereis, &c." 



