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Nothokallymenia erosa C.W.Schneider, Popolizio & G.W.Saunders

Publication details
Nothokallymenia erosa C.W.Schneider, Popolizio & G.W.Saunders 2019: 420, figs 3 A-E

Published in: Schneider, C.W., Popolizio, T.R. & Saunders, G.W. (2019). Collections from the mesophytic zone off Bermuda reveal three species of Kallymeniaceae (Gigartinales, Rhodophyta) in genera with transoceanic distributions. Journal of Phycology 55(2): 415-424, 4 figs.

Type species
The type species (holotype) of the genus Nothokallymenia is Nothokallymenia crouaniorum (Vergés & Le Gall) Vergés & Le Gall.

Status of name
This name is of an entity that is currently accepted taxonomically.

No synonyms are currently included in AlgaeBase.

General environment
This is a marine species.

Rosy-red plants composed of irregular ligulate blades to 3.5 cm long from small discoidal holdfasts, stipes lacking; blades 135-250 µm thick, margins with irregular dentations of varying sizes; blade structure multiaxial with cell layers increasing in size from the outermost pigmented cell layer to the innermost non-pigmented cell layer connecting to the filamentous medulla; pigmented cortex composed of a single layer, the small cells globose to ovoid and sub-rectangular to irregular in surface view, transversely elongated in section, 7-12 µm in diameter; inner cortex of two layers of elongated cells increasing inwardly in size and stretching and thinning, some appearing stellate, the innermost 28-67 µm in length and connecting to the filamentous medulla; medulla composed of a spiderweb-like network of elongated filaments 2-5 µm in diameter, connected to occasional large darkly staining stellate ganglia; sporangia in scattered loose sori on blade surfaces under and displacing outer cortical cells, obovoid to ellipsoidal in shape, irregularly cruciately divided, 12-17 µm in diameter and 17-22 µm long; gametangia unknown.

Key characteristics
Distinguished from the generitype, N. crouaniorum, by its COI-5P (GenBank MH777606) and rbcL (GenBank MH777609) sequence data, its ligulate blades with erose margins and smaller-sized tetrasporangia formed in sori.

Type information
Holotype locality: north northeast of St. George’s I., 32°28’58.05”N, 64°35’04.31”W, Bermuda, western Atlantic Ocean (Schneider, Popolizio & Saunders 2019: 420). Holotype (tetrasporic): Craig W. Schneider/Thea R. Popolizio 16-13-4 [BDA1997] ; 31 July 2016; deep ledge, depth 90 m, bottom temp. 19.4°C. UNB (Schneider, Popolizio & Saunders 2019: 420, fig. 3A).

Detailed distribution with sources (Click to Load)

Created: 20 May 2019 by Craig Schneider

Verified by: 07 June 2019 by

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Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=172453

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 26 June 2019.

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