Crassitegula walsinghamii C.W.Schneider, C.E.Lane & G.W.Saunders 2006
Crassitegula walsinghamii C.W.Schneider, C.E.Lane & G.W.Saunders 2006: 123
Published in: Schneider, C.W., Lane, C.E. & Saunders, G.W. (2006). Crassitegula walsinghamii (Sebdeniaceae, Halymeniales), a new red algal genus and species from Bermuda based upon morphology and SSU and rDNA sequence analyses. European Journal of Phycology 41: 115-124.
This is the type species (holotype) of the genus Crassitegula.
Status of Name
This name is of an entity that is currently accepted taxonomically.
Type locality: Walsingham Pond, Hamilton Parish, Bermuda I., 32º20.7'N, 64º42.8'W; (Schneider et al. 2006: 123) Holotype: 12 November 2001; On vertical wall at 3 m; MICH; CWS/CEL 01-14-12 (Schneider et al. 2006: 123) Notes: Holotype: tetrasporic (fig.1)and cystocarpic (figs 18, 19). Isotype: UNB (GWS 001245, GenBank acc. no. AY964057), tetrasporic.
This is a marine species.
Thalli saxicolous, prostrate, dorsiventrally organized, firm and smoothly textured, brownish-red; blades originally reniform to transversely ovate, 1-3 cm wide, initially attached by short, submarginal holdfasts, the primary blade then proliferating new blades from the margins, some fusing with other blades in the same plane; blades overlapping and affixed to one another by occasional secondary holdfasts issued from the ventral surface; blades 400-450 microns thick with nearly squared-off margins, medulla loosely filamentous with long, thin, mostly periclinal filaments 2-6 microns in diameter and flaring somewhat at the branching ends; cortex 6-8 layered with irregular to sub-globose large inner cortical cells 45-55 microns diameter, grading to smaller outer cortical cell layers, the surface cells irregularly rounded to spherical and small, 3-6 microns in diameter; tetrasporangia obovate, irregularly cruciately divided, 10-15 microns diameter, 20-35 microns long, amongst elongated outer cortical cells in raised surface patches on the ventral surface; thalli dioecious, spermatangia produced from transformed elongated outer cortical cells; spermatia spherical to elongate, 0.5-1 micron diameter; carposporophytes scattered and embedded in the dorsal cortex, to 125 microns diameter; carposporangia subglobose to irregularly angled, 7.5-12.5 microns diameter.
Created: 12 September 2006 by G.M. Guiry.
Last updated: 03 May 2007
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Cite this record as:
G.M. Guiry in Guiry, M.D. & Guiry, G.M. 03 May 2007. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 08 June 2023