Abstract

Predaea pusilla (Berthold) J. Feldmann f. alboranensis Conde, López-Mielgo et Flores-Moya f. nov. (Nemastomataceae, Rhodophyta) is described from the waters near Alboran Island (western Mediterranean Sea). The new taxon differs from Predaea pusilla f. pusilla by the presence of bicelled propagules, 8–12 μm long and 4–5 μm wide, formed at the tips of cortical filaments. Bicelled structures have also been reported in Predaea bisporifera Kajimura as bisporangia. The nature of these bicelled structures in P. pusilla f. alboranensis and P. bisporijera is discussed, and it is suggested that they are propagules rather than bisporangia. The first record of the Mediterranean endemic Predaea ollivieri J. Feldmann is also reported for the Alborán Sea.

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