15 



GRIFFITHSIA Ag. 

 G. Bornetiana Fallow. 



Common along the eastern end of the island, infrequent about 

 Brooklyn. 



HALURUS Kiitz. 



H. equisetifolius Kiitz. 



Reported by Hooper from Brooklyn, probably Bay Ridge. Suf- 

 folk : Greenport and Great South Bay, Pike. 



CALLITHAMNION Lyngb. 

 C. Rothii (Eng. Bot. ) Lyngb. 



Kings: Fort Hamilton, Pike. 

 C. cruciatum Ag. 



Not infrequent about Brooklyn, now most of the stations de- 

 stroyed. Queens : Cold Spring Harbor, Johnson. 

 C. floccosum Ag. 



Suffolk: Orient, Pike. 

 C. Pylaisaei Mont. 



Suffolk : Orient, Miss Booth. 

 C. Americanum Harv. 



Common throughout. 

 C. Plumula (Ellis) Lyngb. 



Suffolk: Orient, Miss Booth. 

 C. Borreri (Eng. Bot.) Harv. 



Common throughout. 

 C. roseum (Roth) Harv. 



Not infrequent throughout. 

 C. polyspermum Ag. 



Kings: Hellgate, Harvey, Bath. Queens: Hempstead Bay, Pike. 

 C. tetragonum (With.) Ag. 



Rare throughout region. 

 C. Baileyi Harv. 



Common throughout. 

 C. byssoideum Arn. 



Not infrequent throughout. 

 C. corymbosum (Eng. Bot.) Lyngb. 



Suffolk: Greenport, Harvey, Pike. 

 C. Dietziae Hooper. 



See notes by Farlow : Bull. Torrey Botanical Club, 20, 1893, 

 pp. 107-109. 

 C. seirospermum Griff. 



Not infrequent throughout the island. 

 C. ? tenue (Ag.) Harv. 



Not infreqent throughout the island. 



