159,871 species and infraspecific names are in the database, 22,563 images, 61,900 bibliographic items, 468,408 distributional records.

Tomaculum Whitford, 1943

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Viridiplantae
Infrakingdom Chlorophyta infrakingdom
Phylum Chlorophyta
Subphylum Chlorophytina
Class Chlorophyceae
Order Sphaeropleales
Family Radiococcaceae

Holotype species: Tomaculum catenatum L.A.Whitford

Original publication:Whitford, L. (1943). The freshwater algae of North Carolina. Journal of the Elisha Mitchell Scientific Society 59: 131-170.

Taxonomic status: currently recognized as a distinct genus.

Description: Microscopic colonial alga of up to 20 cells embedded in spherical to oval, colorless, mucilaginous envelope to 300 &m in length. Cells cylindrical, bent or with rounded lobes, 18-60 x 7 &m, connected to each other by fine threads of parental cell wall material. Cells uninucleate; one or two band-shaped, parietal chloroplasts with single pyrenoid. Reproductive mechanisms and flagellated stages unknown Tomaculum in freshwater associated with attached algae and water plants; reported only from North Carolina. Genus also assigned to Dictyosphaeriaceae by some authors and it is similar to Dictyochlorella reniformis in colony morphology.

Information contributed by: D. Garbary & A. Comas. The most recent alteration to this page was made on 12 May 2015 by Salvador Valenzuela Miranda.

Numbers of names and species: There is only one species or infraspecific name in the database at present, which has been flagged as accepted taxonomically on the basis of the listed literature under the species name. In some instances, opinions on taxonomic validity differ from author to author and users are encouraged to form their own opinion. AlgaeBase is a work in progress and should not be regarded as a definitive source only as a guide to the literature..

Names: ('C' indicates a name that is accepted taxonomically; 'S' a homotypic or heterotypic synonym; 'U' indicates a name of uncertain taxonomic status, but which has been subjected to some verification nomenclaturally; 'P' indicates a preliminary AlgaeBase entry that has not been subjected to any kind of verification. For more information on a species click on it to activate a link to the Species database):

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

Created: 17 September 2004 by Robert Wilkes

Verified by: 12 May 2015 by Salvador Valenzuela Miranda

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=47403

Citing AlgaeBase
Please cite this record as:
Salvador Valenzuela Miranda in Guiry, M.D. & Guiry, G.M. 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 19 January 2021.

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