Grammephora peyssonnelioides N'Yeurt & Payri 2007
Publication Details
Grammephora peyssonnelioides N'Yeurt & Payri 2007: 287-288, figs 2-21
Published in: 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 PDFType Species
This is the type species (holotype) of the genus Grammephora.
Status of Name
This name is of an entity that is currently accepted taxonomically.
Type Information
Type locality: Hele Pass, Vangunu Island, Solomon Islands; Holotype: C.E. Payri; 04 July 2004; Growing on the outer reef slope, from 6 m down to 70 m in the vicinity of reef channel, together with other macroalgae; PC; 0062766
General Environment
This is a marine species.
Description
Thallus prostrate (50)-70-(110) mm broad, dark
reddish, of overlapping lobes, strongly cartilaginous
and leathery in texture, covered with distinct surface
linear markings which are perpendicular to the growing
margins. Medulla dense and pigmented, of three to
four layers of elongate to ovoid refractive cells
8-12 µm wide and 20-25 µm long; cortex three- to
four-layered, of progressively smaller ovoid cells 2.5-10.0 µm in diameter. Carpogonial branch not seen.
Carposporophyte 300-400 µm high, suspended above
the cystocarp floor by a network of persistent nutritive
filaments and interconnected stellate cells present
between a large basal patch of interconnected nutritive
cells 100-120 µm thick and the pericarp walls and
cystocarp floor. Fusion cell columnar, with a crown of
small nonalgal oval cells. Most gonimoblast cells
forming ovoid carposporangia 50-60 µm in diameter.
Cystocarps ostiolate, prominently conical, to 1500 x
950 µm, scattered on the blade surface, with a dense
pericarp 80-100 µm thick. Tetrasporangia 90-
120 x 30-50 µm, decussately divided, intercalary
and surrounded by elongate sterile filaments, in scattered,
at times marginal, raised sori 800-1000 µm
long, 500-800 µm wide and 300-320 µm high. Male
plants not seen.
Created: 01 June 2007 by Antoine N'Yeurt.
Last updated: 20 June 2008
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Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=132358
Citing AlgaeBase
Cite this record as:
Antoine N'Yeurt in Guiry, M.D. & Guiry, G.M. 20 June 2008. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 19 May 2025
