Chrysodendron Pascher, 1927, nom. illeg.

Holotype species: Chrysodendron ramosum Pascher

Currently accepted name for the type species: Aureoarbor ramosa (Pascher) Molinari & Sánchez Ocharan

Original publication and holotype designation: Pascher, A. (1927). Eine Chrysomonade mit gestielten und verweigten Kolonien. Archiv für Protistenkunde 57: 319-330.

Description: Cells Ochromonas-like, seated singly at the ends of a forked system of very delicate and elongate, colorless, mucilaginous stalks. Colonies of 2-4-cells, which readily detach from the stalks and can be free-swimming. Cells metabolic, sometimes forming pseudopodia, especially at the anterior end, which is emarginate (as in Ochromonas), but this feature is emphasized by the prolongation of the dorsal margin on the side adjacent to the short flagellum. Each cell has two unequal flagella, one parietal chloroplast, one stigma, and one contractile vacuole. Reproduction by longitudinal division, after which each daughter-protoplast secretes a new stalk at its base, so that the stalk of the parent appears to have forked into two. Sexual reproduction and stomatocysts unknown. Found in freshwater, epiphytic in ponds in central Europe.

Information kindly contributed by H.R. Preisig but may now be outdated.

Taxonomic status: This name is currently regarded as a synonym of Aureoarbor.

Gender: This genus name is currently treated as neuter.

Most recent taxonomic treatment adopted: Molinari-Novoa, E.A., Mayta, L.F., Sánchez Ocharan, C.E. & Guiry, M.D. (2021). Nomenclatural notes on algae. I. Replacement names for various algal taxa. Notulae Algarum 177: 1-9.

Comments: Kristiansen & Preisig (2001: 9) record this genus as alternately being a member of the family Ochromonadaceae Lemmerman 1899.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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.

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=44702

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 11 October 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 16 April 2024