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T1 Structure and reproduction of Spongites wildpretii sp. nov. (Corallinaceae, Rhodophyta) from the Canary Islands, with observations and comments on S. absimile comb. nov.
A1 Afonso Carrillo, Julio
A2 BotánicaEcología y Fisiología Vegetal
A2 Botánica Marina
AB On the basis of a critical study of the holotype specimen, Lithophyllum absimile Foslie &Howe is transferred to the genus Spongites Kützing, and plants previously reported from theCanary Islands as Lithophyllum absimile or Neogoniolithon absimile (Foslie & Howe) Cabioch are described as a new species: Spongites wildpretii Afonso-Carrillo. The new species isdescribed anatomically and compared with the holotype specimen of Lithophyllum absimile and plants from Japan assigned to L. absimile. Spongites wildpretii is distinguished from theholotype of L. absimile by the lack of excrescences, by the less-developed perithallium and bythe small size of cells. It is distinguished from the Japanese plants mainly by reproductiveattributes (conceptacle dimensions, conceptacle roof structure and occurrence of columella). A detailed reproductive account of S. wildpretii is provided with special reference tocarposporophyte ontogeny. The diagnostic value of the post-fertilization characters as accessory attributes for segregating Spongites from related genera is discussed. Collapse of the conceptacle roof and the regeneration of perithallial tissue of the tetrasporangial andcarposporangial conceptacle chambers also are described.
YR 1988
FD 1988
LK http://riull.ull.es/xmlui/handle/915/26714
UL http://riull.ull.es/xmlui/handle/915/26714
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 18-nov-2024