An Account of the Species of Polysiphonia of the Central and Western Tropical Pacific Ocean: I. Oligosiphonia

Abstract

Twenty-four tetrasiphonous species are described. The following species or varieties are new: Polysiphonia anomala, P. apiculata, P. delicatula, P. flaceidissima var. decimera, P. flaccidissima var. iki, P. flaccidissima var. lopi, P. hawaiiensis, P. herpa, P. poko, P. poko var. longii, P. profunda, P. pseudovillum, P. quadrata, P. rubrorhiza, P. setacea, P. sphaerocarpa var. distans, P. sphaerocarpa var. filifera , P. subtilissima var. abbottae, P. tenais, P. tuberose, P. scopulorum var. macrotrichia, P. scopulorum var. minima. The following new combinations are made: P. saccorhiza (Collins and Hervey) comb. nov., P. sparsa (Setchell) comb. nov., P. scopuloram var. villum 0. G. Agardh) comb. nov., P. mollis var. tongatensis (Harvey) comb. nov.