Padina undulata Ni-Ni-Win, S.Arai & H.
Padina undulata Ni-Ni-Win, S.Arai & H.Kawai in Ni-Ni-Win et al. 2010: 143, 145, figs 6, 7, 21-27
Published in: Ni-Ni-Win, Hanyuda, T., Arai, S., Uchimura, M., Prathep, A., Draisma, S.G.A., Soe-Htun & Kawai, H. (2010). Four new species of Padina (Dictyotales, Phaeophyceae) from the western Pacific Ocean, and reinstatement of Padina japonica. Phycologia 49: 136-153.
Status of name
This name is of an entity that is currently accepted taxonomically.
Origin of species name
Adjective (Latin), wavy.
No synonyms are currently included in AlgaeBase.
This is a marine species.
Thalli semicircular or circular, with undulate margin, wider than tall at up to 14 cm wide and 6 cm tall, rarely split when young but shallowly split into fan-shaped segments (2–4 cm wide) when older, yellowish brown to brown on inferior surface, white on superior surface, moderately calcified on inferior surface except for hair lines, heavily calcified on superior surface, attached by stupose base, covered with long fibrous hairs from the base to 1 cm upward on inferior surface, two cell layers thick throughout; cells of superior side twice as tall as those of inferior side; Vaughaniella stages present. Concentric hair lines alternating between both surfaces and equidistant (1.5–2.5 mm apart on each surface), forming a reddish-brown line at the upper end of a broad depressed line (1 mm wide) on inferior surface, and narrow lines on superior surface. Thalli dioecious; oogonia cylindrical (36.15 ± 3.73 µm wide, 82.15 ± 2.28 µm long) and tetrasporangia obovate (86 ± 3.84 µm wide, and 112.5 ± 2.56 µm long), both forming continuous lines distally adjacent to the hair lines on inferior surface and covered with a persistent indusium; antheridia squarish, forming broken lines or patches irregularly a little more distal than hair lines on inferior surface, without indusium.
Type locality: Hoshizuna, Iriomote Island, Okinawa Prefecture, Japan (Ni-Ni-Win et al. 2010: 145). Holotype: S. Arai; Nov. 22, 2006; subtidal up to 20 m deep. SAP 106492 (Ni-Ni-Win et al. 2010: 145).
Created: 05 May 2010 by M.D. Guiry
Verified by: 21 February 2012 by Wendy Guiry
Accesses: This record has been accessed by users 570 times since it was created.
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Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=136869
Cite this record as:
Wendy Guiry in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 21 November 2019.