Dichotomaria Lamarck, 1816
Lectotype species: Dichotomaria marginata (J.Ellis & Solander) Lamarck
Original publication: Lamarck, J.B. (1816). Histoire naturelle des animaux sans vertèbres. Vol. 2 pp. 1-568. Paris: Verdière.
Request PDFType designated in: Huisman, J.M., Harper, J.T. & Saunders, G.W. (2004). Phylogenetic study of the Nemaliales (Rhodophyta) based on large-subunit ribosomal DNA sequences supports segregation of the Scinaiaceae fam. nov. and resurrection of Dichotomaria Lamarck. Phycological Research 52(3): 224-234.
Description: According to Wang et al. (2005: 699), the resurrected genus Dichotomaria is characterized by 1) gametophytes and tetrasporophytes that are isomorphic in habit but differ in cortical-cell features; 2) a three-celled corpogonial branch in which, following fertilization, the basal cell produces involucral filaments that ultimately form the pericarp; 3) a multinucleate fusion cell that incorporates the gonimoblast initial and the three to four inner gonimoblast cells; and 4) cruciate tetrasporangia produced on stalk cells initiated from cortical or subcortical cells. Full, emended description on p. 688 (Wang et al., 2005).
The most recent alteration to this page was made on 2017-01-20 by M.D. Guiry.Taxonomic status: This name is of an entity that is currently accepted taxonomically.
Most recent taxonomic treatment adopted: Wang, W.-L., Liu, S.-L. & Lin, S.-M. (2005). Systematics of the calcified genera of the Galaxauraceae (Nemaliales, Rhodophyta) with an emphasis on Taiwan species. Journal of Phycology 41: 685-703.
Comments: Dichotomaria Lamarck resurrected by Huisman et al (2004a). Description emended by Wan, Liu & Lin (2005: 688).
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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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.
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Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 20 January 2017. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 22 November 2024
