Yonedaella Umezaki, 1962

Holotype species: Yonedaella lithophila (Ercegovic) Umezaki

Original publication and holotype designation: Umezaki, I. (1962). [News and Notes] Yonedaella nom. nov. Taxon 10: 204 only.

Description: Filamentous, colonial; trichomes free disposed within a mucilaginous colony. Colonies small, more or less spherical, up to 200 µm in diameter, brownish, sometimes confluent in gelatinous irregular mats. Trichomes irregularly curved or flexuous, uniseriate, unbranched, along the whole length of the same width, torulose, constricted at cross walls. Mucilage hyaline or brownish, gelatinous, homogenous, limited. Cells barrel-shaped, isodiametrical or slightly shorter than wide, with homogeneous content, pale blue-green; apical cells rounded, without calyptra. Heterocytes and akinetes absent.

Information contributed by: J. Komárek. The most recent alteration to this page was made on 2023-03-03 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.

Most recent taxonomic treatment adopted: Strunecký, O., Ivanova, A.P. & Mares, J. (2022 '2023'). An updated classification of cyanobacterial orders and families based on phylogenomic and polyphasic analysis (Review). Journal of Phycology 59(1): 12-51.

Comments: The type species is known from calcareous rocks (not or rarely perforating the substrate) in the upper littoral belt in Adriatic Sea and southern Japan.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=47379

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 03 March 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 25 November 2024