Palisada K.W.Nam, 2007

Holotype species: Palisada robusta K.W.Nam

Original publication and holotype designation: Nam, K.W. (2007). Validation of the generic name Palisada (Rhodomelaceae, Rhodophyta). Algae (The Korean Journal of Phycology) 22(2): 53-55, 1 table.

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Description: Thallus erect, cartilaginous or not, radially or distichously branched; axes terete or compressed; apical pits with trichoblasts, usually emergent. Polysiphonous; each axial cell with 2 pericentral cells, but these generally only distinguishable in sections from near apices. In transverse section view, the first pericentral cell is positioned beneath the trichoblast basal cell. Medulla of large hyaline cells, grading to a cortex of smaller pigmented cells; in some species an epidermal layer forming a palisade. No secondary connections formed between epidermal cells, as seen in longitudinal sections (except P. parvipapillata). Spermatangial development on 1 of 2 laterals of the suprabasal cell of fertile trichoblasts. Procarp-bearing segments with 4 or 5 cells. Tetrasporangia tetrahedrally divided, originating from 1 of 2 pericentral cells on a tetrasporangial axis, the other remaining sterile. Tetrasporangia arranged at right angles to the main axis.

Information contributed by: Metti et al. (2018). The most recent alteration to this page was made on 2018-10-09 by M.D. Guiry.

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

Most recent taxonomic treatment adopted: Metti, Y. Huisman, J.M. & Millar, A.J.K. (2018). Palisada. In: Algae of Australia. Marine benthic algae of north-western Australia. 2. Red algae. (Huisman, J.M. Eds), pp. 552-554. Canberra & Melbourne: ABRS & CSIRO Publishing.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=50822

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 09 October 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 09 February 2023

 
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