Prof. Bailey on the Alg@ of the United States. 83 
Desmarestia aculeata, Lamour. Mass. G. B. Emerson ; Nan- 
tasket Beach, Rev. J. L. Russel! Newport, not rare. 
ichloria viridis, Grev. Mass. G. B. Emerson. 
Padina pavonia, St. Domingo! It will doubtless be found 
on our southern coasts 
Punctaria latifolia, Grev. Mass. G. B. Emerson. 
Punctaria tenuissima, Grev. Narragansett Bay, and New- 
port on leaves of Zostera. ee 
Asperococcus echinatus, Grev. Mass. G. B. Emerson. 
Chorda lomentaria, Grev. Narragansett Pier; Seaconnet and 
Newport, not rare. 
Chorda filum, Lamour. Mass. G. B. Emerson. Common on 
shores of Rhode Island, and at Stonington, Conn., where I saw 
specimens from thirty to forty feet in length. 
Cladostephus verticillatus, Lyngb. , Both these species (or as 
Cladostephus spongiosus, Ag. I believe varieties of the 
same species) occur abundantly at Newport. 
Sphacelaria cirrhosa, Ag. Stonington, Conn. ; Seaconnet, R. 1. 
Evctocarpus siliculosus. Very common everywhere on out 
shores, and also in the Hudson River at West Point, sixty miles 
rom the ocean. 
Chordaria flagelliformis, Ag. Mass. G. B. Emerson. Very 
common on the shores of Rhode Island and Connecticut. 
Series II. RuoposperMez. wii ta eet 
Mesogloia muiltifida, Ag. Common, with the preceding plant. 
Halymenia furcellata, Ag. Newport. ~ nga 
Polyides rotundus, Grev. Newport and Seaconnet; Mass. 
Rev. J. L. Russel ! 
Delesseria sinuosa, Lamour. Mass. G. B. Emerson; Plym- 
outh, Mass. Rev. J. L. Russel; abundant near “the Stairs” at 
Newport. 
Delesseria Leprieurii, Montaigne. Shores of Hudson River 
at West Point, below low water mark. Specimens of this beau- 
tiful plant were sent by me to Montaigne, who pronounced them 
identical with the plant described by him from the coast of Cay- 
enne.* It is very abundant at West Point; but I could onl 
find a single specimen of it on the shores of the Hudson at Ho- 
boken, N. J., near the ocean. , ea 
Delesscria americana, Ag. “Ad litus Americe Septentrio- 
nalis.” Ag, Syst. Alg., p. 248. I have not seen any figure or 
authentic specimen of Agardhs plant; but I suspect it to be the 
same as a fine species with fronds twelve to eighteen inches long, 
which grows abundantly near Providence, R. L., in Narragansett 
Bay. TI also found a fragment of the same at Hoboken, N. J. 
Rhodomenia cristata, Grev. Mass. G. B. Emerson. 
* See Ann. Sci. Nat., 2d Series. Bot. tom. xiii, p. 196, pl. 5. 
