Pyramichlamys H.Ettl & O.Ettl, 1959: 62
Holotype species: Pyramichlamys quadrangulata (Pascher) H.Ettl & O.Ettl
Taxonomic status: currently recognized as a distinct genus.
Description: Unicellular thalli ellipsoidal to nearly cylindrical. Four anterior isokont flagella. Flagella inserted in anterior depression defined by two or four anterior lobes of the cell. Papilla are absent. Cell wall present. Stigma absent or present depending on the species. Chloroplast variable, depending on the species, and includes compact, flattened forms, cup-shaped forms, and highly-dissected forms. Two anterior contractile vacuoles. Asexual reproduction by zoosporogenesis typically producing four motile daughter cells. No other asexual stages have been observed. No sexual stages have been observed in this genus. Ettl transferred most members of the genus Pyramichlamys from the genus Carteria. Pyramichlamys has been collected from continental Europe and the United States. Habitats include small cold pools, acidic ponds, and saline bodies of water. The bulk of all species occur in the latter. No biochemical or molecular data are available for this organism
NCBI Nucleotide Sequences
Numbers of names and species: There are 10 species (and infraspecific) names in the database at present, of which 9 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):
Pyramichlamys acuta (J.Schiller) H.Ettl & O.Ettl C
Pyramichlamys cordiformis (Carter) H.& O.Ettl P
Pyramichlamys crassifilis (J.Schiller) H.Ettl & O.Ettl C
Pyramichlamys cylindracea (J.Schiller) H.Ettl & O.Ettl C
Pyramichlamys dissecta (Tiffany) H.Ettl & O.Ettl C
Pyramichlamys quadrangulata (Pascher) H.Ettl & O.Ettl P - type
Pyramichlamys salina (Wislouch) H.Ettl & O.Ettl C
Pyramichlamys semiglobosa (Pascher) H.Ettl & O.Ettl C
Pyramichlamys vectensis (Kufferath) Ettl & Ettl C
Pyramichlamys wettsteinii (Schiller) H.Ettl & O.Ettl P
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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: http://www.algaebase.org/search/genus/detail/?genus_id=47455
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2014. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 11 March 2014.
Algaebase taxon LSID: urn:lsid:algaebase.org:taxname:5401