title: NEW SPECIES OF HALIMEDA: A TAXONOMIC REAPPRAISAL(1) (2).
abstract: A study of new Halimeda material available from the International Indian Ocean Expedition, and of type and other specimens not previously available to me, further indicated that Halimeda opuntia is a composite of species rather than a single species. The characteristics of some of its infraspecific taxa differ sufficiently from typical H. opuntia that I have elevated them to species. Extended diagnoses of three, H. hederacea, H. minima, and H. distorta, are given in this paper. Some characteristics new in Halimeda taxonomy are introduced, and distinguishing macroscopic and microscopic characteristics for the new species are discussed. Available ecological data are included.
authors.affiliation: Faculty of Developmental and Organismic Biology, The Ohio State University, Columbus, Ohio 43210.
authors.forename: L H
authors.initials: LH
authors.lastname: Colinvaux