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Morphology and taxonomy of Jolyna laminarioides, a new member of the Scytosiphonales (Phaeophyceae) from Brazil

1986; Taylor & Francis; Volume: 25; Issue: 1 Linguagem: Inglês

10.2216/i0031-8884-25-1-99.1

2330-2968

Silvia Maria Pita de Beauclair Guimarães, Márcia R. Braga, Marilza Cordeiro-Marino, Alexandre Gusmão Pedrini,

Algal biology and biofuel production

AbstractJolyna laminarioides gen. et sp. nov. (Scytosiphonales, Phaeophyceae) is described from Búzios, ‘municipio’ of Cabo Frio, Brazil. The plants consist of one to several erect blades arising from a discoid holdfast. Anatomical features include a meristoderm, an outer and inner cortex, a transition region, a medulla that is composed of elongated cells (fiber-like cells), and a ground tissue made of a dense, irregular weft of interconnected filaments. The presence of a single chloroplast with a conspicuous pyrenoid in each cell and of plurilocular organs on the macroscopic plant allows for placement in the Order Scytosiphonales; however, the sharply differentiated internal elements similar to those of the Laminariales lead us to propose a new genus and species.