FROM HELO BAY AND TAHITI 455 



ULYACEiE. 



Ulva latissima, Ag. 



Enteromorpha compressa, Grev.> var. trichodes, Ktz. 



CONFERVACEvE. 



Ch^tomorpha pacifica, Ktz. 



(8) Algce collected on the Beefs at Tahiti, 



i 



FlJCACEiE. 



Sargassum Binderi, Sonder. 



Only two rather fragmentary specimens. The vesicles are de- 

 scribed as either elliptic or spherical. Mr. Moseley's plant has 

 the latter character. 



TURBINARIA VULGARIS, J. Ag. 



Padina Pavonia, L. 



DiCTYOTACE^E 



Helminthocladie.e 



ACTINOTRICHIA RIGIDA, Dne. 



Cryptonemiaceje 



Grateloupia filiformis, Ktz. 



Ceramiaces:. 



Centroceras cryptacanthum, Ktz. 



Siphonace^:. 



Halimeda Opuntia, Lamx. 



Valontacejr. 



Valonia ? 



Probably V. cladop/iora, Ktz., but too imperfect. 



Ulvace^i. 



Enteromorpha compressa, Grev., var. trichodes, Ktz. 



Pucace^:. 

 Cladophora patentiramea, Mont. 



(9) Supplement to preceding Collections. 



"A calcareous Alga in rounded masses forming the bottom in 

 10 fathoms off Great Island (Santa Cruz Major), Zamboanga. 

 f he dredge came up filled with these n.asses." 



Lithothamnion polymorphum. L. 



UHH, JOUR>\ BOTANY, VOL. XV. 2 L 



