RT info:eu-repo/semantics/article
T1 Morfología y distribución de las especies de Polysiphonia de las islas Canarias. 2. Polysiphonia subulifera (Rhodophyta,  Rhodomelaceae)
A1 Afonso Carrillo, Julio
A1 Rojas González, Berta
A2 BotánicaEcología y Fisiología Vegetal
A2 Botánica Marina
AB The vegetative and reproductive morphology and the distributionof Polysiphonia subulifera from the Canary Islands are examined. The Canarianplants are vegetatively characterized by a regular ramification each 4-5 segments,unbranched or branched spine-like branchlets, ecorticate 13-15 helically arrangedpericentral cells, and each segment with a scar cell. Fertile plants occur alongthe year. Spermatangial axes are conical ending in 1-2 sterile terminal cells, andthey replacing a branch of a trichoblast at the level of the first dichotomy.Cystocarps are globular and sessile, with polygonal and irregularly arrangedouter pericarp cells, decreasing in size towards ostiole. Tetrasporangia formedin spiral series in terminal branches. Mixed-phases, with cystocarps andtetrasporangia occurring simultaneously on a same plant were observed.Except in La Gomera, P. subulifera has been identified in all the islands of theCanarian Archipelago
YR 2007
FD 2007
LK http://riull.ull.es/xmlui/handle/915/26553
UL http://riull.ull.es/xmlui/handle/915/26553
LA es
DS Repositorio institucional de la Universidad de La Laguna
RD 26-abr-2024