Afonso Carrillo, Julio

Kvaternik, Diana

Reyes, Javier

Sansón Acedo, Marta

English

Repositorio Institucional de la Universidad de La Laguna

LIAGORA MADERENSIS AN ENDEMIC MARINE RED ALGA (NEMALIALESRHODOPHYTA) OF THE MACARONESIAN REGION.Julio Afonso-Carrillo, Diana Kvaternik, Marta Sanson and Javier Reyes.Departamento de Biología Vegetal (Botánica), Universidad de La Laguna, 38271La Laguna, Islas Canarias.Liagora maderensis was described by Kützing (1858) based on plants collectedin Madeira and deposited in the Herbarium Sonder. It has not been reported since,and the name has often cited as a synonym for L. ceranoides Lamouroux or L. valida Harvey The lectotype collection of L. maderensis is housed at L and consists oftwo small plants (to 32 mm long) that are dichotomously branched with wideangles. Anatomically, it presents medullary filaments 20-61 um broad and rhizoidalfilaments 6-12 um broad; the cortical assimilatory filaments, 165-255 um long and upto 7 times dichotomously branched, consist of cylindrical proximal cells becomingshorter upwards and ending in ovoid cells. Strongly curved four-celled carpogonialbranches, c. 12 um broad, arranged on the middle of the supporting cells, are evident in the type material. A compact mature carposporophyte examined issurrounded by a well developed involucre and measures c. 300 um in diameter insurface view. Spermatangia were not observed. Plants recently collected in theCanary Islands are in close agreement with the type material. The lectotype specimens differ remarkably from L. valida and L. ceranoides in having broader medullary filaments, a strongly curved carpogonial branch and a compact gonimoblastsurrounded by a conspicuous involucre. In habit, L. maderensis is close to some smallspecimens of L. viscida (Forsskål) C. Agardh but is differentiated anatomically by thelonger assimilatory filaments, the strongly curved carpogonial branch and the compact carposporophyte. Recent collections from Azores housed at L and identifiedas L. divaricata Tseng are misidentifications of L. maderensis.FAUNA & FLORASYMPOSIUMIl Symposium"Fauna and Floraof theAtlantic Islands"ABSTRACTS12 - 16 February 1996Las Palmas de Gran CanariaUniversidad de Las Palmas de Gran Canaria

Liagora maderensis an endemic marine red alga (Nemaliales, Rhodophyta) of the Macaronesian Region

https://riull.ull.es/xmlui/bitstream/915/27453/1/Liagora_maderensis_an_endemic_marine_red_alga__Nemaliales__Rhodophyta__of_the_Macaronesian_Region.pdf

Liagora maderensis an endemic marine red alga (Nemaliales, Rhodophyta) of the Macaronesian Region

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Repositorio Institucional de la Universidad de La Laguna