Lobomonas P.-A.Dangeard, 1899: 115
Holotype species: Lobomonas francei P.A.Dangeard
Original publication and holotype designation: Dangeard, P.-A. (1899). Mémoire sur les Chlamydomonadinées ou l'histoire d'une cellule. Le Botaniste 6(2-6): 65-290.
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Taxonomic status: currently recognized as a distinct genus.
Description: Unicellular thalli ellipsoidal, ovoid, pyriform, or spherical. Cell surface normally with irregular array of processes or lobes. Two isokont flagella inserted at the apex. Papillum present. Chloroplast is cup-shaped and normally contains a single (usually basal) pyrenoid and anterior stigma. Number and position of contractile vacuoles varies depending upon the species (either two [sometimes four] and anterior or numerous and scattered). Asexual reproduction by zoosporogenesis resulting in two to eight motile daughter cells. Following rotation of the protoplast, the first division is transverse. The mature, lobed form of the daughter cells. develops following liberation. No other asexual stages have been reported. No sexual stages have been observed in this genus. Cell wall in Lobomonas piriformis (= L. rostrata sensu Ettl) of the type IV lattice (similar to Vitreochlamys incisa), distinguished from the type III lattice in C. asymmetrica, the type II lattice in Brachiomonas, Chlorogonium, Chloromonas, Carteria and some species of Chlamydomonas, and the type I lattice in Chlamydomonas reinhardtii and Volvox aureus.
Comments: Lobomonas is a distinctive assemblage of unicellular flagellates that has a rather wide distribution. Lobomonas has been collected in small ponds or from soil samples in eastern Europe, South Africa, Austria, Switzerland, Sweden, India, the United Kingdom, and The United States. Ettl regards Lobomonas as a rather poorly understood group. No molecular data are available for this organism.
NCBI Nucleotide Sequences
Numbers of names and species: There are 14 species (and infraspecific) names in the database at present, of which 11 have been flagged as currently accepted taxonomically.
Names: ('C' indicates a name that is currently 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):
Lobomonas ampla Pascher C
Lobomonas ampla var. okensis Korshikov C
Lobomonas ampla var. mamillata (Svir.) Korshikov C
Lobomonas denticulata Korshikov C
Lobomonas francei P.A.Dangeard C - type
Lobomonas granulata H.J.Hu & Y.X.Wei C
Lobomonas guizhounensis H.J.Hu & L.M.Luo C
Lobomonas irregularis (Boye-Pet.) Reisigl C
Lobomonas monstruosa P
Lobomonas piriformis E.G.Pringsh. U
Lobomonas pyriformis Pringsheim C
Lobomonas rostrata Hazen C
Lobomonas sinensis C.C.Jao C
Lobomonas sphaerica Pringsheim C
Information contributed by: M. Buchheim. The most recent alteration to this page was made on 13 May 2010 by M.D. Guiry.
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.
