Gracilaria birdiae E.M.Plastino & E.C.Oliveira 2002

Publication Details
Gracilaria birdiae E.M.Plastino & E.C.Oliveira 2002: 390, figs 1-8

Published in: Plastino, E.M. & Oliveira, E.C. (2002). Gracilaria birdiae (Gracilariales, Rhodophyta), a new species from the tropical South American Atlantic with a terete frond and deep spermatangial conceptacles. Phycologia 41: 389-396.

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Type Species
The type species (lectotype) of the genus Gracilaria is Gracilaria compressa (C.Agardh) Greville.

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

Type Information
Type locality: Guajiru Beach, Trairi (3º28'S, 39º25'W), Ceará State, Brazil; (Plastino & Oliveira 2002: 390) Holotype: E.C. Oliveira; 15 September 1989; SPF; 54947 (Plastino & Oliveira 2002: 390) Notes: Isotypes at SPF and SP.

General Environment
This is a marine species.

Description
Thallus up to 46 cm tall, terete, up to 2.3 mm broad, with 2 (4) orders of branching, microcystidiate, composed of a cortex with two layers of subquadrate cells [(4.8)-5.9-(7.2) x (4.8)-7.4-(9.6) microns] and a medulla with c. five layers of large cells in cross-section [(997)-196-(310) x (107)-224-(339) microns]. Spermatangia in confluent deep sub-cortical conceptacles, (26)-58-(132) microns in diameter to (48)-99-(178) microns deep. Cystocarps (0.9)-1.2-(1.7) mm in diameter and (0.70)-0.8-(1.1) mm high; pericarp (127)-159-(216) microns thick, with 15-17 cell layers and a prominent ostiole; gonimoblast domed, developing from a highly dissected fusion cell; tubular nutritive cells fusing with cells of the floor of the cystocarp and rarely with the outer pericarp; terminal carposporangia (19.2)-22.6- (26.4) microns in diameter. Tetrasporngia cruciately divided, (19.2)-24.7-(31.2) x (31.2)-42.1-(50.4) microns, scattered over the thallus.

Habitat
On intertidal or subtidal rocky substrata.

Created: 28 January 2004 by M.D. Guiry.

Last updated: 08 November 2021

Verification of Data
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Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=62160

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 08 November 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 29 March 2024

 
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