Basichlamys Skuja, 1956: 153
Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Viridaeplantae
Phylum Chlorophyta
Class Chlorophyceae
Order Volvocales
Family Tetrabaenaceae
Holotype species: Basichlamys sacculifera (Scherffel) Skuja
Original publication: Skuja, H. (1956). Taxonomische und biologische Studien über das Phytoplankton schwedischer binnengewässer. Nova Acta Regiae Societatis Scientiarum Upsaliensis, Series 4 16(3): 1-404.
Taxonomic status: currently recognized as a distinct genus.
Description: Colonies contain 4 cells attached to their parental cellular sheath (sac), forming a square. Cells ovoid and somewhat asymmetrical, each with two equal flagella, a stigma, two contractile vacuoles at the base of the flagella, and a massive cup-shaped chloroplast with single pyrenoid. Asexual reproduction by autocolony formation; akinetes sometimes formed. Sexual reproduction isogamous, forming walled aplanozygotes. Basichlamys is rare but cosmopolitan in freshwater. Basichlamys was described for Gonium sacculiferum Scherffel. It is distinguished from Gonium in lacking connections of the cellular sheaths of the constitutive cells, which attach only to the sac. Some authors do not recognize this genus and use Gonium sacculiferum.
NCBI Nucleotide Sequences
Numbers of names and species: There are 2 species (and infraspecific) names in the database at present, of which 1 has 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):
Basichlamys sacculifera (Scherffel) Skuja C - type
Basichlamys sacculifera var. rhomboidea Skuja P
Information contributed by: H. Nozaki. The most recent alteration to this page was made on 20 Oct 2009 by Stephen Cusack.
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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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.
