MORPHOLOGICAL STUDIES IN A NEW SPECIES OF ACROSYMPHYTON (RHODOPHYCEAE)

Abbott , Isabella A. (Hopkins Marine Sta. of Stanford U., Pacific Grove, Calif.) Morphological studies in a new species of Acrosymphyton (Rhodophyceae). Amer. Jour. Bot. 49(8): 845–849. Illus. 1962.—Acrosymphyton taylori sp. nov. (Dumontiaceae, Cryptonemiales, Rhodophyceae) is shown to have a sexual cycle essentially similar to that of the 2 other species in the genus, but differs in some details of the sexual structures and the vegetative structure. Acrosymphyton taylori, from the Hawaiian Islands, is the only member of the genus from the Pacific. Acrosymphyton is only one of several genera of red algae possessing soft, gelatinous, uniaxial thalli. A study of specimens from various herbaria showed that specimens of Dudresnaya and Calosiphonia have been confused with Acrosymphyton.