Grammephora N'Yeurt et Payri, 2007

Holotype species: Grammephora peyssonnelioides N'Yeurt & Payri

Publication details: N'Yeurt & Payri, 2007: 287

Original publication and holotype designation: N'Yeurt, A.D.R. & Payri, C.E. (2007). Grammephora peyssonnelioides gen. et sp. nov. (Rhodophyta, Rhodymeniaceae) from the Solomon Islands, South Pacific. Phycological Research 55(4): 286-294.

Request PDF

Description: Thallus prostrate, totally uncalcified, of overlapping lobes with a strongly cartilaginous, leathery but flexible texture, covered with distinct linear markings perpendicular to the thallus surface. Medulla dense and pigmented, of three to four layers of elongate to ovoid cells with refractive contents, and three to four layers of progressively smaller ovoid cortical cells. Carposporophyte suspended above the cystocarp floor by persistent nutritive filaments and interconnected stellate cells present between the basal nutritive tissue, pericarp wall and cystocarp floor. Fusion cell columnar, with a crown of small satellite cells of nonalgal origin. Cystocarps prominent, ostiolate and conical, on the dorsal surface of the blade. Tetrasporangia intercalary, elongate and decussately divided, in raised, scattered dorsal surface sori. Male plants unknown.

Origin of description: this description is from the original publication; it may have been modified slightly. The most recent alteration to this page was made on 2010-10-08 by M.D. Guiry.

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

Most recent taxonomic treatment adopted: Schneider, C.W. & Wynne, M.J. (2007). A synoptic review of the classification of red algal genera a half a century after Kylin's "Die Gattungen der Rhodophyceen". Botanica Marina 50: 197-249.

Taxonomic note
N'Yeurt & Payri (2007) assigned this genus to the Rhodymeniaceae. However, Le Gall et al . (2008) have assigned it incertae sedis. - (05 July 2011) - G.M. Guiry

Verification of Data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=50791

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 08 October 2010. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 16 May 2025