Ulva ohnoi Hiraoka & S.Shimada 2004
Publication Details
Ulva ohnoi Hiraoka & S.Shimada 2004: 20, figs 1-22
Published in: Hiraoka, M., Shimada, S., Uenosono, M. & Masuda, M. (2004). A new green-tide-forming alga, Ulva ohnoi Hiraoka & Shimada sp. nov. (Ulvales, Ulvophyceae) from Japan. Phycological Research 52: 17-29, 25 figs, 4 tables.
Request PDFPublication date: March 2004
Type Species
The type species (holotype) of the genus Ulva is Ulva lactuca Linnaeus.
Status of Name
This name is of an entity that is currently accepted taxonomically.
Type Information
Tosa Bay, Tosa, Kochi Prefecture; (Hiraoka et al. 2004: 20) Holotype: M. Hiraoka; 12 February, 2000; SAP; 095155 (Hiraoka et al. 2004: 20)
General Environment
This is a marine species.
Description
Marine alga with foliose, saxicolous or floating thalli; gametophytes dioecious, producing biflagellate anisogametes in the upper marginal region (up to 2 cm wide); female gametes 7.1 ± 0.3 x 3.5 ± 0.3 µm, male gametes 6.3 ± 0.4 x 2.3 ± 0.3 µm; sporophytes producing quadriflagellate meiospores (9.8 ± 0.5 x 5.5 ± 0.6 µm) also in the upper marginal region (up to 2 cm wide). Attached thallus 20-30 cm in height, light green, fragile, easily torn (often more or less split in the upper portion), orbicular, obovate or ovate, sometimes irregularly expanded, often with microscopic serrations, 30-55 µm thick in the upper and middle regions and 80-90 µm thick in the basal region. Cells in surface view irregularly arranged throughout the thallus, polygonal or quadrangular, 14-20 x 7-15 µm in the upper and middle regions, and circular, 14-30 x 12-20 µm in the basal region; cells in transverse section square or quadrangular with rounded corners throughout the thallus. Chloroplast covers the outer face of cell, with 1-3 pyrenoids. Floating thallus over 50 cm in height, lacking the basal part but similar to attached thalli in other respects.
Created: 01 December 2004 by Sandy Lawson.
Last updated: 08 October 2024
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Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=65952
Citing AlgaeBase
Cite this record as:
G.M. Guiry in Guiry, M.D. & Guiry, G.M. 08 October 2024. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 23 November 2024
