Abstract
Austrofolium Wynne, gen. nov. contains three species of foliose red algae occurring on the coast of Peru and the Galapagos Islands. Austrofolium hassleri (W. Tayl.) Wynne, comb. nov. (Hemineura hassleri W. Tayl.) is designated the type of the genus. Austrofolium howellii (W. Tayl.) Wynne, comb. nov. (Hemineura (?) howellii W. Tayl.) and A. equatorianum (E. Y. Daws.) Wynne, comb. nov. (Bartoniella (?) equatoriana E. Y. Daws.) are also assigned to the new genus. The absence of intercalary cell divisions and the failure of some tertiary initials to reach the blade margin demonstrate that Austrofolium is a member of the Membranoptera group of subfamily Delesserioi- deae. The blades become polystromatic relatively close to the apex. In the course of examining members of the Delesseriaceae I have recognized that three species described from Peru and the Galapagos Islands have been incorrectly assigned to genus. The purpose of this paper is to re-describe these species, paying particular attention to their api- cal organization, and to present reasons justi- fying the delineation of a new genus to accom- modate them. The three species in question are Hemineura (?) howellii W. Tayl., Hemineura hassleri W. Tayl., and Bartoniella (?) equatoriana E. Y. Daws. The genus Hemineura was established by Har-
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