Sellaphora auldreekie D.G.Mann & S.M.McDonald 2004
Publication Details
Sellaphora auldreekie D.G.Mann & S.M.McDonald 2004: 477, figs 4 m-o, 21, 43-47
Published in: Mann, D.G., McDonald, S.M., Bayer, M.M., Droop, S.J.M., Chepurnov, V.A., Loke, R.E., Ciobanu, A. & du Buf, J.M.H. (2004). The Sellaphora pupula species complex (Bacillariophyceae): morphometric analysis, ultrastructure and mating data provide evidence for five new species. Phycologia 43(4): 459-482, 52 figs, 4 tables.
Request PDFPublication date: 30 July, 2004
Type Species
The type species (lectotype) of the genus Sellaphora is Sellaphora pupula (Kützing) Mereschkovsky.
Status of Name
This name is of an entity that is currently accepted taxonomically.
Type Information
Holotype locality: Blackford Pond, Edinburgh, Scotland; (Mann & al. 2004: 477) Holotype: December '83; 70 m altitude; mud slurry from small, artificial, eutrophic lake fed by groundwater seepage and underwater springs; E; E16/4 (mud (tissue)) (Mann & al. 2004: 477, 460)
General Environment
This is a freshwater species.
Description
The valves are elliptical with strongly rostrate ends, 15-35 µm long and 6.6-8.0 µm wide. The ratio of pole width to maximum width is c. 1:2.3. The axial area is narrow and straight. The central area is an acute-angled subfascia, like a flaring bow-tie. The areolae are not resolved in LM, but are ± circular or elliptical and equally spaced poroids, with a density of c. 65 in 10 µm transapically. The striae are radiate, becoming parallel or, in larger valves, convergent at the poles; their density is 19.2-23.7 in 10 µm. The polar bars are perpendicular to apical axis or very slightly reflexed (in large valves). The raphe-sternum is not or scarcely elevated externally. The raphe appears simple, straight and threadlike in LM. The external central raphe endings are expanded and deflected towards the primary side; the internal endings are also deflected towards the primary side. The terminal fissures are bent towards the secondary side. The helictoglossa is narrow and elongate.
Created: 20 November 2004 by Sandy Lawson.
Last updated: 24 July 2023
Verification of Data
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Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=65919
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 24 July 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 26 April 2024
