Holotype species: Dactylothece braunii Lagerheim
Original publication and holotype designation: Lagerheim, G. (1883). Bidrag till Sveriges algflora. Öfversigt af Kongl. Vetenskaps-Akademiens Förhandlingar Arg. 40(2): 37-78, pl. I.
Taxonomic status: currently recognized as a distinct genus.
Description: Small colonies consisting of 2-4 mostly separated cells in filament-like arrangement, often becoming compound by adherence of daughter colonies. Cells embedded in yellowish or greenish mucilaginous envelope with distinct stratification reflecting sequence of cell division. Cells oval to ellipsoid, after cell division pyriform, with rounded ends. Chloroplast single, parietal and cup-shaped, at most occupying one half of cell circumference, usually with pyrenoid. Reproduction suggested to occur by autospore-like structures. Multiplication of cells by transverse vegetative cell division. Method of sexual reproduction unknown. Dactylothece (sub)aerial, in humid localities, e.g. base of tree trunks, walls and greenhouses, particularly in temperate regions. Dactyolothece uncertain generic status, resulting from poor understanding of reproduction. Among others, it may represent mucilaginous growth stage of ulotrichalean algae such as Stichococcus or Geminella, or the chlorococcalean algae Coccomyxa or Palmogloea.
Information contributed by: G.M. Lokhorst. The most recent alteration to this page was made on 11 Jul 2012 by Michael Guiry.
Numbers of names and species: There are 5 species names in the database at present, as well as 1 infraspecific names. Of the species names, 2 have 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):
Click here to also show infraspecific names in the list below.
Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.
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: 11 April 2002 by M.D. Guiry
Verified by: 11 July 2012 by Michael Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=43400
Please cite this record as:
Michael Guiry in Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 20 September 2018.