Halopeltis willisii Freshwater & G.W.Saunders 2012
Publication Details
Halopeltis willisii Freshwater & G.W.Saunders 2012: 101, figs 3, 4
Published in: Schneider, C.W., Freshwater, D.W. & Saunders, G.W. (2012). First report of Halopeltis (Rhodophyta, Rhodymeniaceae) from the non-tropical Northern Hemisphere: H. adnata (Okamura) comb. nov. from Korea, and H. pellucida sp. nov. and H. willisii sp. nov. from the North Atlantic. Algae 27: 95-108, 5 figs.
Request PDFType Species
The type species (holotype) of the genus Halopeltis is Acropeltis australis J.Agardh.
Status of Name
This name is of an entity that is currently accepted taxonomically.
Type Information
Type locality: Southwest Ledge, Onslow Bay, North Carolina, USA; (Schneider, Freshwater & Saunders: 101) Holotype: A. Poray NCweed-178; 30 June 2009; 27 m on rock; UNB; (Schneider, Freshwater & Saunders: 101)
General Environment
This is a marine species.
Description
Blades procumbent, flattened, anastomosing and pseudodichotomously branched, to 80 mm long and to 15 mm wide near the base, narrowing to 4-5 mm wide in ultimate branches, rosy-brown to pink in situ; attached by haptera scattered along margins and ventral surface, margins otherwise smooth; cortex composed of 2-3 layers of pigmented cells, outer cortex incomplete, cells globose to quadrangular, 4-10 µm in diameter, inner cortical cells transversely elliptical, 10-17 µm in greatest dimension; central medulla composed of 2-3 layers of lightly-pigmented, thin-walled, highly vacuolate, subglobose to polygonal, somewhat axially elongated cells up to 350 µm in diameter, with interspersed, variably shaped, smaller 10-200 µm diameter cells at some interstices; outer medullary cells transversely elliptical, 40-100 µm in diameter.
Tetrasporangia cruciately divided, 15-25 µm in diameter and 30-40 µm long, developmentally replacing outer cortical cells and pit-connected to inner cortical cells in variably shaped sori on one or both blade surfaces, surrounded by anticlinally elongated outer cortical cells that sometimes form fasciculate clusters.
Cystocarps developing on both blade surfaces and margins, hemispherical, not basally constricted, somewhat flattened at the ostiole; pericarp 8-15 cells thick, locule wall lined with network of rounded cells, and network of darkly staining nutritive cells that develop in the chamber floor; initial gonimoblast cells large, darkly staining, giving rise to filamentous gonimoblasts that ramify among closely adjacent lobes of densely packed obovate to angular carposporangia, 12-20 µm in diameter.
[Original description]
Created: 16 August 2012 by M.D. Guiry.
Last updated: 30 September 2015
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Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=143374
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 30 September 2015. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 16 April 2024
