Augophyllum S.-M.Lin, S.Fredericq & M.H.Hommersand, 2003

Holotype species: Augophyllum wysorii Showe M.Lin, Fredericq & Hommersand

Original publication and holotype designation: Lin, S.-M., Fredericq, S. & Hommersand, M.H. (2004). Augophyllum, a new genus of the Delesseriaceae (Rhodophyta) based on rbcL sequence analysis and cystocarp development. Journal of Phycology 40: 962-976, 7 figs, 1 table.

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Description: Thalli consisting of ruffled, palmate blades, arising from a single, straight, or branched stipe; mostly polystromatic except the margins, blades with brilliant golden irridescent and/or circled mottled spots on surfaces, texture membranous with microscopic and macroscopic veins or midribs absent; plastids discoid, compact beneath cell surface, not linked by fine strands or forming bead-like, branched chains; cystocarps resticted to margins or upper parts of fertile blades, procarps consisting of supporting cell bearing a single sterile cell and a slightly curved four-celled carpogonial branch flanked by a lateral cover cell, the sterile cell dividing and branching two to three times after fertilization; auxiliary cell cut off apically from supporting cell, not cutting off a foot cell but enlarging and remaining distinct at the base of the carposporophyte; primary gonimoblast initial cut off terminally from the auxiliary cell, growing terminally for a few segments and branching bilaterally; secondary gonimoblast initials cut off laterally from auxiliary cell; pit connections between gonimoblast cells and between the auxiliary and supporting cell broadening with gonimoblast nuclei enlarging; pit plugs between gonimoblast cells broadening but the cells not fusing; gonimoblast filaments strongly developed and highly branched compared with those of Nitophyllum; tetrasporangial sori irregularly circular, initiated near the blade margins, rarely scattered over fertile blades; tetrasporangial initials multinucleate with all but one nucleus degenerating, the remaining nucleus undergoing meiosis; mature tetrasporangia tetrahedrally divided.

The most recent alteration to this page was made on 2014-02-17 by M.D. Guiry.

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

Gender: This genus name is currently treated as neuter.

Most recent taxonomic treatment adopted: Wynne, M.J. (2014 '2013'). The red algal families Delesseriaceae and Sarcomeniaceae. pp. [1]-326, 118 figs. Königstein: Koeltz Scientific Books.

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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=47511

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 17 February 2014. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 27 November 2024

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