NO. 9 ALGAE TAYLOR 3 



Gomphosphaeria aponina Kiitzing 



Infrequent colonies among filamentous algae in the lagoon, Clip- 

 perton Island, Mexico (Schmitt 21), July 21, 1938. 



CHAMAESIPHONACEAE 

 Xenococcus pyriformis Setchell & Gardner 



With other, indeterminable, Myxophycean epiphytes on Bostrychia 

 binderi, probably from mangrove roots, south end of black beach, 

 Elizabeth Bay, Isabela Island, Archipelago de Colon, Ecuador (Albe- 

 marle Island, Galapagos Islands) (Schmitt 2j), July 28, 1938. 



OSCILLATORIACEAE 

 Lyngbya aestuarii (Mertens) Liebmann 



Scattered trichomes in and among the masses of L. versicolor, 

 lagoon back from the landing place, Clipperton Island, Mexico 

 (Schmitt 21), July 21, 1938. Determined by the kindness of Dr. 

 Francis Drouet. 



Lyngbya lagerheimii (Mobius) Grunow 



Scattered trichomes among the masses of L. versicolor, particularly 

 evident in sediment of liquid from which the L. versicolor had been 

 strained, from the lagoon back from the landing place, Clipperton 

 Island, Mexico (Schmitt 21), July 21, 1938. Determined by F. 

 Drouet. 



Lyngbya versicolor (Wartmann) Gomont 



Forming large masses, and probably extremely abundant, associated 

 with smaller amounts of other species of algae and phanerogams, 

 particularly Najas marina, in the lagoon back from the landing place, 

 Clipperton Island, Mexico (Schmitt 21), July 21, T938. Determined 

 by F. Drouet. 



RIVULARIACEAE 



Calothrix stellaris Bornet & Flahault 



On leaves of Najas marina from the lagoon back from the landing 

 place, Clipperton Island, Mexico (Schmitt 21), July 21, 1938. Deter- 

 mined by F. Drouet. 



