858 PROCEEDINGS OP THE AMERICAN ACADEMY 



64. LiEBMANNiA Leveillei, Ag. West coast. — This is to be 

 expected at Key "West. 



65. Leathesia tuberiformis, Gray. New York northwanl. 

 *GG. Ralfsia verrucosa, Aresch. Portland harbor, Me. ; INIar- 



blehead and Nahant, Mass., W. G. F. Not mentioned by Harvey, but 

 probably common on the New England coast. Europe. 



67. Elachista fucicola, Fr. New England coast. Common. 



68. INIyrioxema strangulans, Grev. On Ulva. Fisher's Island, 

 N.Y., W. G. F. 



ECTOCARPACE^. 



69. Cladostephus verticillatus, Ag. New England coast. 



70. Cladostephus spongiosus, Ag. With the last. 



71. Sphacelaria cirriiosa, Ag. New York northward. 



72. Sphacelaria radicans, Dillw. Peak's Island, Portland, Me. ; 

 Nahant, Mass. ; Noank, Conn., W. G. F. 



73. Myriotrichia filiformis, Harv. Penobscot Bay ; Rhode 

 Island, Mr. S. T. Ohiey. 



Ectocarpns. — Specimens of this genus are worthless unless in fruit. 

 They should be kept in fluid. Of the two kinds of fruit, trichospo- 

 rangia, or multilocular sporangia, and oosporaiigia, or unilocular spo- 

 rangia, only the former have been observed in this country, unless 

 E. oviger, Harv., from California, be the oosporangial state of some 

 species, as one might infer from Harvey's drawing in the Herbarium 

 of Trinity College, Dublin. 



74. EcTOCARPUS BRACHiATUS, Harv. Boston northward. 



75. EcTOCARPUS FiRMUS, Ag. {E. liltoralis, Harv. in Nereis Am.- 

 Bor.) New England coast. 



76. EcTOCARPUS LONGiFRUCTUS, Harv. Penobscot Bay. 



77. EcTOCARPUS SILICULOSUS, Lyngb. Charleston, S.C, north- 

 Avard. 



78. EcTOCARPUS AMPHiBius, Harv. New York. 



79. EcTOCARPUS viRiDis, Ilarv. Charleston, S.C, and northward. 



80. EcTOCARPUS LUTOSUS, Harv. Greenport, L.I. 



81. EcTOCAUPUS TOMENTOSUS, Lyngb. Boston northward. — Some 

 forms of E. sih'culosus resemble this. 



82. EcTOCARPUS FASCicuLATUS, Harv. Rhode Island. 



83. EcTOCARPUS GRANULOSUS, Ag. Boston. 



84. EcTOCARPUS MiTCHELL.E, Harv. Nantucket. 



85. EcTOCARPUS DuRKEEi, Ilarv. Portsmouth, N.H. 



86. EcTOCARPUS Landsburgii, Harv. (?) Halifax, N.S. 



