Chylocladia, 1833, nom. cons.
Holotype species: Chylocladia kaliformis (Goodenough & Woodward) Hooker
Currently accepted name for the type species: Chylocladia verticillata (Lightfoot) Bliding
Original publication and holotype designation: Hooker, W.J. (1833). Div. I. Inarticulatae. In: The English Flora of Sir James Edward Smith. Class XXIV. Cryptogamia. Vol. V. (or Vol. II of Dr. Hooker's British flora). Part I. Comprising the Mosses, Hepaticae, Lichens, Characeae and Algae. (Hooker, W.J. Eds), pp. 254-263; 268-326. London: Longman, Brown, Green & Longmans Paternoster-Row.
Taxonomic status: currently recognized as a distinct genus.
Gender: This genus name is currently treated as feminine.
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.
Conserved name and type is automatically conserved. - (24 Jan 2017) - M.D. Guiry
Description: Thallus with a small attachment disc and erect or arching fronds, divided into segments by septa and filled throughout with a watery mucilage, terete or slightly compressed, constricted at septa, branching variable, often whorled, not deciduous; multiaxial construction, producing a tubular inner cortex covered by an incomplete layer of smaller cells and lined inside by discrete parallel longitudinal filaments bearing inwardly-directed secretory cells adaxially and uniting with monostromatic septa between the segments. Gametangial plants dioecious; spermatangia in superficial sori, terminal on mother cells derived from cortical cells; procarpic, carpogonial branches in cortex, 4-celled, each with two 2-celled auxiliary cell branches, cystocarps protruding externally, carposporangia large, wedge-shaped, arising directly from large central fusion cell, enclosed within cortical pericarp without a pore, tela arachnoidea absent; large tetrasporangia scattered in the younger parts, intercalary in cortical filaments, tetrahedral, polysporangia unknown.
Information contributed by: M.D. Guiry. The most recent alteration to this page was made on 24 Jan 2017 by M.D. Guiry.
Comments: Type species is widely distributed on western European and African coasts, and in the Mediterranean; the other species are more restricted in distribution to the Mediterranean, South Africa, and South Australia (Bliding 1828; Ercegovic, 1956; Reedman & Womersley 1976; Price et al. 1976) Kylin (1923), Bliding (1928), Reedman & Womersley (1976), and Irvine & Guiry (1983) describe anatomical and reproductive features of various species of Chylocladia. Buffham (1888) and Irvine & Guiry (1983) report cystocarps and tetrasporangia occurring simultaneously on field-collected plants which are likely the result of mitotic recombination of sexual alleles or similar genetic phenomena. Boillot (1961) describes the spore germination and early frond development in C. verticillata. Irvine & Guiry (1983) reported that the Polysiphonia-type life history of C. verticillata took only 12 weeks to complete at 20 °C with a 16-hour day. A chromosome number of n = ca. 20 has been reported in C. verticillata (Kylin 1923, as C. kaliformis). In the British Isles, C. verticillata is a spring annual in mid-intertidal rock pools, growing rapidly in February-May, reproducing, bleaching and dying back during the summer.
Numbers of names and species: There are 60 species names in the database at present, as well as 14 infraspecific names. Of the species names, 11 have been flagged as accepted taxonomically on the basis of the listed literature under the species name. In some instances, opinions on taxonomic validity differ from author to author and users are encouraged to form their own opinion. AlgaeBase is a work in progress and should not be regarded as a definitive source only as a guide to the literature..
Names: ('C' indicates a name that is 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):
Click here to also show infraspecific names in the list below.
Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.
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.
Created: 28 December 2000 by M.D. Guiry
Verified by: 24 January 2017 by M.D. Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=118
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 08 August 2020.