Porphyra drewiana, a new species of red algae (Bangiales, Rhodophyta) from Brazil |
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Authors: | Javier Coll Eurico C. Oliveira |
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Affiliation: | Departamento de Botánica, Facultad de Química, Universidad de la Rep. O. del Uruguay, CC 1157, CP 11800 Montevideo, Uruguay;Instituto de Biociências, Universidade de São Paulo, C. postal 11461, 05422–970 São Paulo, SP, Brazil |
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Abstract: | Porphyra drewiana Coll et Oliveira, sp. nov., is described from plants collected on the south‐east coast of Brazil. The species proposed is monostromatic, monoecious, monoplastidial, without marginal microscopic teeth and does not produce monospores. Both phases, leafy and filamentous, have three chromosomes. Morphologically the most similar species is Porphyra spiralis Oliveira et Coll var. amplifolia Oliveira et Coll, from which it differs by: (i) thallus gross morphology; (ii) scattered pluristromatic areas of vegetative cells; (iii) division of the plastids prior to the nucleus at the first division of the carpospores mother cell; (iv) the number of carpospores and spermatia produced per mother cell; and (v) morphology and behavior of the filamentous phase in cultures. An identification key for the species referred to Brazil is included. |
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Keywords: | Bangiales Brazil chromosome number Porphyra drewiana sp. nov. Rhodophyta |
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