Fifteen species of Polysiphonia are recognised from New Zealand and the outlying islands -Three Kings, Chatham, Bounty, Snares, Antipodes, Auckland, and Campbell Islands. Of these, 11 species are considered to be indigenous including the newlydescribed P. pernacola N.M. Adams. One species, P. brodiaei, is almost certainly adventive, while P. sertularioides, P. subtilissima, and P. constricta are apparently so. Of the 15 species, 8 belong to the subgenus Oligosiphonia and 7 to the subgenus Polysiphonia.
The presence of Leptosarca simplex A. et E. S. Gepp on the New Zealand Subantarctic Islands has been revealed by the chemical and morphological investigation of certain, similar, foliose red algae. Of these Iridea lanceolata Harvey, an Iridea sp., Nemastoma laciniata J. Ag. (Gigartinales), and Cenacrum subsutum Ricker et Kraft (Rhodymeniales), contain water soluble polysaccharides of the carrageenan family. Only Leptosarca simplex contains a linear ß-D-xylan with 3-and 4-linked residues in a ratio of ca 1:2.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.