Sawia R.E.Romanov, 2025
Holotype species: Sawia boldii (Sawa) R.E.Romanov
Publication details: R.E.Romanov, 2025: 1
Original publication and holotype designation: Romanov, R.E. (2025). Sawia gen. nov., and new combinations in Sphaerochara (Characeae, Charophyceae). Notulae Algarum 367: 1–4.
Request PDFDescription: Sawia has acute end-cells of branchlets, terminal antheridia situated at tops of rays of furcate, i.e. non-monopodial, branchlets, although antheridia are formed mostly at bases of branchlet whorls. In contrast, Sphaerochara has no terminal antheridia; they are situated at nodes of monopodial branchlets and at bases of branchlet whorls. In comparison, Tolypella has blunt, rounded end-cells of branchlets and bipartite basal plates of oospores. Terminal placement of antheridia, the presence of non-monopodial branchlets, phylogenetic affinity, and, probably, the absence of gyrogonites allow delineation of Sawia and Sphaerochara. Acute end-cells, undivided basal plates of oospores, and phylogenetic affinity allow delineation of Sawia and Tolypella.
Origin of description: this description is from the original publication; it may have been modified slightly. The most recent alteration to this page was made on 2025-04-02 by M.D. Guiry.
Taxonomic status: This name is of an entity that is currently accepted taxonomically.
Gender: This genus name is currently treated as feminine.
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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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=55655
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 02 April 2025. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 05 April 2025
