Sellaphora
Mereschkowsky 1902 Category: Symmetrical biraphid
TYPE SPECIES: Sellaphora pupula (Kützing) Mereschkowsky
Image Credit: Megan Otu, Sarah Spaulding
CLASS: Bacillariophyceae
ORDER: Naviculales
FAMILY: Sellaphoraceae
- Valve linear, lanceolate or elliptical
- Polar bars at apices in some taxa
- Striae uniseriate
- Conopeum present in some taxa
The valve is linear, lanceolate, or elliptical with bluntly rounded poles. Polar bars, or transapical thickenings, are present in some taxa. The axial area is distinct, and may be expanded along the apical axis to form a conopeum. The external proximal raphe ends are dilated, while the distal raphe ends are deflected.
Sellaphora is widespread in alkaline to brackish waters of neutral pH. It contains the former Navicula pupula Kützing group.
Cite This Page:
Spaulding, S., and Edlund, M. (2009). Sellaphora. In Diatoms of the United States. Retrieved May 19, 2013, from http://westerndiatoms.colorado.edu/taxa/genus/Sellaphora
Contributor: Sarah Spaulding | Mark Edlund - January 2009
Citations
Evans, K.M, Chepurnov, V.A., Sluiman, H.J., Thomas, S.J., Spears, B.M. and Mann, D.G. (2009). Highly differentiated populations of the freshwater diatom Sellaphora capitata suggest limited dispersal and opportunities for allopatric speciation. Protist 160: 386-396. 10.1016/j.protis.2009.02.001
Evans, K.M., Wortley, A.H. and Mann, D.G. (2007). An assessment of potential diatom ‘barcode’ genes (cox1, rbcL, 18S and ITS rDNA) and their effectiveness in determining relationships in Sellaphora (Bacillariophyta). Protist 158:349–364. 10.1016/j.protis.2007.04.001
Johansen, J.R., Lowe, R., Gomez, S.R., Kociolek, J.P. and Makosky, S.A. (2004). New algal species records for the Great Smoky Mountains National Park, U.S.A., with an annotated checklist of all reported algal species for the park. Archiv für Hydrobiologie Supplement 150: 17-44.
Li, Y., Metzeltin, D. and Gong, Z. (2010). Two new species of Sellaphora (Bacillariophyta) from a deep oligotrophic plateau lake, Lake Fuxian in subtropical China. Chinese Journal of Oceanology and Limnology 28 (6) 1160-1165. 10.1007/s00343-010-9028-z
Mann, D.G. (1989). The diatom genus Sellaphora: Separation from Navicula. British Phycological Journal 24: 1-20.
Mann, D.G. (2001). The systematics of the Sellaphora pupula complex: typification of S. pupula. In: Jahn, R. et al. (eds) Studies on Diatoms. Lange-Bertalot Festschrift, Koeltz, Koenigstein.
Mann, D.G., Evans, K.M., Chepurnov, V.A. and Nagai, S. (2009). Morphology and formal description of Sellaphora bisexualis sp. nov. (Bacillariophyta). Fottea 9: 199-209.
Mereschkowsky, C. (1902). On Sellaphora, a new genus of diatoms. Annals and Magazine of Natural History, series 7, 9: 185-195.
Potapova, M. and Ponader, K.C. (2008). New species and combinations in the diatom genus Sellaphora (Sellaphoraceae) from southeastern United States. Harvard Papers in Botany 13: 171-181.