155,278 species and infraspecific names are in the database, 21,865 images, 60,056 bibliographic items, 436,069 distributional records.

Taxonomy Detail

Subclass Fragilariophycidae

Fragilariophycidae Round in Round, R.M.Crawford & D.G.Mann, 1990: 125, 651.

Source: Medlin, L.K. (2016). Opinion: Can coalescent models explain deep divergences in the diatoms and argue for the acceptance of paraphyletic taxa at all taxonomic hierarchies?. Nova Hedwigia 102(1-2): 107-128.

Original publication: Round, F.E., Crawford, R.M. & Mann, D.G. (1990). The diatoms Biology and morphology of the genera. pp. [i-ix], 1-747. Cambridge: Cambridge University Press.

Description:
Valves with a medial sternum, lacking a raphe, labiate process(es) may be present, sexual reproduction anisogamous with one or both sex cells released from the gametagania, when both sex cells are released from the gametangium, there is a nonmotile female cell and an amoeboid male cell with a hairlike appendage extruded to attach the female to the male and pulling it towards the male cell for fertilization, auxospore bands composed of perizonial bands. Areolae covering variable. Apical pore fields may or may not be from the valve areolation by a rim of silica.

Linking to this page: http://www.algaebase.org/browse/taxonomy/detail/?taxonid=146360

Citing AlgaeBase
Cite this record as:
Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 26 May 2019.

Algaebase taxon LSID: urn:lsid:algaebase.org:taxname:146360

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