290 eeport'^^I^^mmissioner of fish and fisheries. 



Spoxgiocarpe^. 



52. Folyides rotundus, Grev. Common at Gay Head, Newport, Orient, 



and Greenport, also on the rocky shores of Massachusetts Bay, 

 though not so luxuriant there as south of the cape. 



SQUAMARItE. 



53. Hildenhrandtla rnhya,M-Ei:^Y.CT. lufruitat Wood's Hole. Common 



between tide-marks and below, at Wood's Hole, Xahant, Eock- 

 port, Massachusetts, New Haven, (Professor Eaton.) This 

 species, I believe, has never before been recognized in America, 

 where it will probably be found to be as common as in Europe. 



Helminthoclade.e. 



54. Kemcdiou muUiJidiim, J. Ag. One specimen bearing tetraspores 



picked up at Gay Head. It was of larger diameter and more 

 beautiful rose color than usual. 



55. Scinaia furcellata, BiYON. Fruitiug, and not uncommon at Gay 



Head. Washed ashore, and also dredged in six or eight fathoms. 



Ehodymeniace^. 



56. Bliodymen'm pahnata, Grev. Common at Gay Head, Wood's 



Hole, Newport, Orient, and Greenport. 



Cryptonemtace.e. 



57. PJu/UopJiora mcmhmn [folia. Dredged at Gay Head, Newport, 



Orient. 



58. P. Brodkvi, J. Ag. Fine specimens, a foot long, dredged in ten 



fathoms oft' Sheep Pen Cove. Common at Gay Head, Newport, 

 and Orient. 



59. Alinfeltia pllcata^ Fries. Common at Gay Head, Newport, Orient. 

 CO. Cystoclonium purpurascenSjKiJTZ. Extremely common, in summer, 



in pools, and washed ashore. Gay Head, Wood's Hole, New- 

 port, Orient, Watch Hill, (Professor Eaton.) Yar ^9. Harv. 

 equally common. 



61. Chondriis crisjrus, Ly'NGB. Very common and with the last. 



62. Chylocladia Ba'deyana^ Harv. This plant was placed by Harvey 



conditionally in the genus Chylocladia, he having seen only the 

 tetrasporic plant, I believe I was the first who saw the con- 

 ceptacular plant, which I found growing on the Government 

 Wharf, Wood's Hole, in July. The fruit is external and con- 

 tained in a cellular pericarp. The nucleus, surrounded by a 

 hyaline mucous envelope, consists of a mass of spores grouped 

 without order. The plant varies very much in color, according 

 to locality and season, and the three varieties described by 

 Harvey run constantly into each other. Common at Wood's 

 Hole, Buzzard's Bay, Orient, Greenport, Weepecket, New 

 Haven, (Professor Eaton.) 



