Gelidiella Feldmann & G.Hamel, 1934: 529
Holotype species: Gelidiella acerosa (Forsskål) Feldmann & G.Hamel
Original publication and holotype designation:Feldmann, J. & Hamel, G. (1934). Observations sur quelques Gélidiacées. Revue Générale de Botanique 46: 528-549, 11 figs.
Taxonomic status: currently recognized as a distinct genus.
Substitute name for Echinocaulon Kützing 1843, non (Meisner) Spach 1841. - (30 Aug 2011) - M.D. Guiry
Description: Thallus of small size, up to 7-10 cm high in the larger species, formed by several tufted, entangled, cylindrical erect axes arising from creeping axes decumbent and sometimes arcuate, attached to the substratum by rhizoids. Erect axes cylindrical or slightly compressed, sometimes gradually tapering towards the apices and usually with sparse, filiform, distichously arranged, opposite or subopposite pinnae. On surface view the external cortical cells may or may not be arranged in longitudinal rows. In transection generally they are anticlinally elongated, with granular contents and gradual increase in size inwardly. Medulla formed by larger, elongated cells devoid of pigments. Elongated, narrow, colourless cells (named rhizoidal filaments or hyphae) absent from cortex and medulla. Tetrasporangial sori in the apical portions of vetative pinnae generally modified into swollen branches of conical shape. Tetrasporangia ovoid, tetrehedric, cruciately or irregulary divided; may or may not be regularly disposed in the sori, the lower usually in a more advanced stage of development than those near the apex. Cystocarps unknown.
Comments: A largely tropical to warm-temperate genus, with relatively small species (2-25 mm long), living in intertidal or shallow subtidal habitats, often forming turfs on calcareous substrata.
NCBI Nucleotide Sequences
Numbers of names and species: There are 30 species (and infraspecific) names in the database at present, of which 16 have been flagged as currently accepted taxonomically.
Names: ('C' indicates a name that is currently accepted taxonomically; 'S' a homotypic or heterotypic synonym; 'U' indicates a name of uncertain taxonomic status, but which has been subjected to some verification nomenclaturally; 'P' indicates a preliminary AlgaeBase entry that has not been subjected to any kind of verification. For more information on a species click on it to activate a link to the Species database):
Gelidiella acerosa f. minima Sreenivasa Rao S
Gelidiella acerosa (Forsskål) Feldmann & G.Hamel C - type
Gelidiella adnata E.Y.Dawson S
Gelidiella antipai Celan S
Gelidiella bornetii (Weber-van Bosse) Feldmann & G.Hamel C
Gelidiella calcicola Maggs & Guiry C
Gelidiella diuens Sreenivasa Rao & Trivedi C
Gelidiella fanii S.-M.Lin C
Gelidiella feldmannii Baardseth C
Gelidiella hancockii E.Y.Dawson C
Gelidiella indica Sreenivasa Rao C
Gelidiella ligulata E.Y.Dawson C
Gelidiella lubrica (Kützing) Feldmann & G.Hamel C
Gelidiella machrisiana E.Y.Dawson C
Gelidiella mexicana E.Y.Dawson C
Gelidiella minima Guiry & Womersley S
Gelidiella myrioclada (Børgesen) Feldmann & G.Hamel C
Gelidiella nigrescens (Feldmann) Feldmann & G.Hamel C
Gelidiella pannosa Feldmann & G.Hamel S
Gelidiella ramellosa (Kützing) Feldmann & G.Hamel C
Gelidiella refugiensis E.Y.Dawson S
Gelidiella rigidiuscula (Feldmann) Feldmann & G.Hamel C
Gelidiella sanctarum Feldmann & G.Hamel S
Gelidiella setacea (Feldmann) Feldmann & G.Hamel S
Gelidiella stichidiospora E.Y.Dawson S
Gelidiella taylori A.B.Joly S
Gelidiella tenuissima Feldmann & G.Hamel S
Gelidiella tinerfensis Seoane-Camba C
Gelidiella trinitatensis W.R.Taylor S
Gelidiella womersleyana Kraft & I.A.Abbott S
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: http://www.algaebase.org/search/genus/detail/?genus_id=32963
Cite this record as:
Guiry, M.D. & Guiry, G.M. 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 08 December 2013.
Algaebase taxon LSID: urn:lsid:algaebase.org:taxname:8290