260 PROCEEDINGS OP THE AMERICAN ACADEMY. 



Halymenia Floresia (Clem.) Ag. Washed ashore, Montego Bay, 

 June, 1900, P. & B. 



Grateloupia filicina (Wulf.) Ag. Morant Bay, on rocks washed by the 

 waves, but not really under water, July, 1894; Rio Bono, Rio Novo, 

 July, 1900, P. & B. In tufts on wood, St. Ann's Bay, March 24, No. 

 419; Kingston Harbor, Apr. 8, 1893, No. 381, H. 



"The Grateloupia gathered in 1900 was lying in coarse, black, dry, 

 rigid tangle on the beach, totally unlike the Grateloupia found in 1894 

 at Morant Bay, growing on a big boulder on shore washed by heavy surf. 

 At the latter locality, when the water was over the plants they floated 

 out like fine, greenish-brown hair; as the water receded the plants fell 

 back on to the rock, covering it like a soft jelly. From the habit of the 

 two forms, one would never suspect that they were the same species." 



G. dichotoma J. Ag. Near Kingston, Duerden. Fronds broader 

 than usual in this species as found in the Mediterranean or at the Cana- 

 ries, but otherwise the same. 



G. prolongata J. Ag. Near Kingston, Duerden. Agreeing well with 

 Agardh's description, and with the form from California which passes 

 under this name. 



Cryptonemia crenulata J. Ag. Morant Bay, Annotto Bay, and coast 

 towards Port Antonio, washed ashore and growing on '' sea-fans," July 

 and Aug., 1894; Kingston, July, 1900, P. & B. 



Cruoriella Armorica Crouan. On stones and shells, Annotto Bay, 

 July, 1891, P. & B. 



Peysonnellia Dubyi Crouan. On corals, Port Maria, March 17, No. 

 283 ; Port Antonio, Feb. 23, 1893, No. 161, H. 



P. rubra (Grev.) J. Ag. On rocks, Port Maria, March 19, 1893, No. 

 291, H. 



Hildenbrantia Prototypus Nardo. On coral rock, Port Antonio, Feb. 

 23, 1893, No. 161 ; Port Maria, March 20, 1893, No. 300, H. 



Melobesia farinosa Lamour. On Dictyota, etc., Port Antonio, July, 

 1891, P. & B. On various algae, near Kingston, Duerden. 



M. Lejolisii Rosanoff. On various algae and eel-grass, P. & B. 



M. membranacea Lamour. On various algae, P. & B. 



M. pustulata Lamour. On Gracilaria Domingensis, P. & B. 



Lithothamniou incrustans Phil. On rocks, Port Maria, March 16, 

 1893, No. 258, H. Montego Bay, July, 1900, P. & B. 



L. Lenormandi (Aresch.) Foslie. On shells, Port Antonio, P. & B. 



Amphiroa charoides, Lamour. Port Antonio, July, 1891, P. & B. 

 In tufts on bottom, Port Antonio, March 2, 1893, H. 



