Monomorphina Mereschkowsky, 1877
Holotype species: Monomorphina pyrum (Ehrenberg) Mereschkowsky
Original publication and holotype designation: Mereschkowsky, K.S. (1877). Etjudy nad prostejsimi zivotnymi severa Rossii. Trudy Sankt-Peterburgskago Obshchestva Estestvoisptatele 8(2): 1-299.
Description: Marin et al. (2003: 102) provide an emended diagnosis: Cells with a single emergent flagellum; pyriform in lateral view with hyaline spine at the posterior end; in apical view not or only slightly compressed; with rigid pellicle or with slight metaboly; pellicle strips helically arranged, typically with left-handed orientation, rarely right-handed; a subset of pellicle strips elevated with conspicuous hyaline keels, resembling a screw thread; one to few large, parietal chloroplasts, not lens-shaped; pyrenoids typically absent; two (rarely 3-4) conspicuous lateral paramylon plates; nuclear- encoded SSU rRNA molecule typically with U as the third nucleotide in the terminal loop of Helix 27. Emended by Kosmala & Zakrys in Kosmala et al., 2007: 177: Cells ovoid or slightly oblate (circular or widely elliptical in cross-section) and rigid; numerous spiral stripes or a few conspicuous hyaline keels of the pellicle extending to form a pronounced tail; one parietal, spherical chloroplast (usually more or less perforated); haplopyrenoids (one or more?) present on the inner side of the chloroplast; and two or three (rarely 4) conspicuous lateral paramylon plates located between the pellicle and the chloroplast. Emended diagnosis Marin & Melkonian (in Marin et al. 2003: 102).
The most recent alteration to this page was made on 2017-12-30 by M.D. Guiry.Taxonomic status: This name is of an entity that is currently accepted taxonomically.
Most recent taxonomic treatment adopted: Cavalier-Smith, T. (2016). Higher classification and phylogeny of Euglenozoa. European Journal of Protistology 56: 250–276, 2 figs.
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Contributors
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,
organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA)
and intended to be published in CD format.
These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above.
The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.
Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.
Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=45850
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 30 December 2017. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 23 April 2024
