Ignatius Bold & F.J.MacEntee, 1974

Holotype species: Ignatius tetrasporus Bold & F.J.MacEntee

Original publication and holotype designation: Bold, H.C. & MacEntee, F.J. (1974). Phycological notes. III. Two new saccate unicellular chlorophyceae. Journal of Phycology 10: 189-193, 16 figs.

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Description: Macroscopically forming dry masses, composed of spherical to ovoid or saccate cells, 12–25 ?m in diameter, with a thin cell wall, and a single large central nucleus. Chloroplast parietal and partially perforate, with one to several pyrenoids surrounded by many starch grains. Vegetative cell division resulting in aggregations of two to eight daughter cells within a parental cell wall, which are set free as they grow. Asexual reproduction by quadriflagellate zoospores, formed in fours or eights from transformed vegetative cells; zoospores drop-shaped, motile only briefly, rapidly becoming spherical. Sexual reproduction not observed.

Information contributed by: Skaloud et al. (2018: 170).. The most recent alteration to this page was made on 2018-03-16 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Most recent taxonomic treatment adopted: Škaloud, P., Rindi, F., Boedeker, C. & Leliaert, F. (2018). Süßwasserflora von Mitteleuropa. Freshwater flora of central Europe: Chlorophyta V: Ulvophyceae. Vol. 13 pp. [i]-vii, [1]-288, 182 figures. Berlin: Springer Spektrum.

Comments: Genus with a single species, Ignatius tetrasporus; not recorded from Europe.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=44562

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 16 March 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 27 December 2024