Chorda kikonaiensis H.Sasaki & H.Kawai 2007
Publication Details
Chorda kikonaiensis H.Sasaki & H.Kawai 2007: 18, figs 2-18
Published in: Sasaki, H. & Kawai, H. (2007). Taxonomic revision of the genus Chorda (Chordaceae, Laminariales) on the basis of sporophyte anatomy and molecular phylogeny. Phycologia 46: 10-21.
Request PDFType Species
The type species (holotype) of the genus Chorda is Chorda filum (Linnaeus) Stackhouse.
Status of Name
This name is of an entity that is currently accepted taxonomically.
Type Information
Holotype locality: Kikonai, Hokkaido, Japan; (Saskai & Kawai 2007: 18) Holotype: H. Sasaki; 11 April 2001; On upper intertidal rocks of a relatively sheltered, somewhat muddy, wide flat rock bed; SAP; 100626 (Saskai & Kawai 2007: 18, 16, 12)
General Environment
This is a marine species.
Description
Sporophyte macroscopic, epilithic, intertidal, solitary or sparse, simple, cord-shaped, 0.4-0.5 (-1.3) m in length and up to 2.5 mm in diameter, medium brown, parenchymatous, hollow, composed of hypha, cortex, epidermis, and hairs, unicellular paraphyses without mucilagenous cap, and disc-shaped rhizoidal holdfast. Cortex thin composed of 2-4 cells. Unilocular sporangia sessile and narrowly ovate. Microscopic gametophytes dioecious, sexually dimorphic, oogamous. Antheridium solitary. Sporophytic as well as gametophytic cells containing many disc-shaped chloropasts without pyrenoid. This species is similar to Chorda filum in habit, but it differs essentially by the softer thallus with persistence of the intecalary meristem even at maturity. Nucleotide sequences of rblL and ITS rDNA distinctive (ITS rDNA sequence AB 197758).
Created: 31 January 2007 by G.M. Guiry.
Last updated: 20 August 2019
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Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 20 August 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 19 April 2024
