Areschougia Harvey, 1855, nom. cons.
Lectotype species: Areschougia laurencia (Hooker f. & Harvey) Harvey
Currently accepted name for the type species: Areschougia congesta (R.Brown ex Turner) J.Agardh
Original publication: Harvey, W.H. (1855). Some account of the marine botany of the colony of western Australia. Transactions of the Royal Irish Academy 22: 525-566.
Request PDFType designated in: Schmitz, F. (1889). Systematische Übersicht der bisher bekannten Gattungen der Florideen. Flora oder Allgemeine botanische Zeitung 72: 435-456, pl. XXI.
Description: Plants reach 40 cm in length, are erect from a crustose base, and, depending on the species, are either terete and irregularly radially branched or flattned with a prominent midrib and marginally proliferous. Axes are uniaxial, each axial cell giving rise to a single periaxial cell and remaining distinct in lower cross sections. Carpogonial branches are 3-4-celled, sterile cells occasionally being borne on the hypogynous or basal cells. Fertilization results in 3-7 connecting filaments issuing from the carpogonium. Cystocarps are composed of a central fusion cell incorporating cells of the cortical axial filament containing the auxiliary cell, the auxiliary cell, and inner gonimoblast layers. Carposporangia form in chains of 2-4 on short sterile gonimoblast filaments radiating from the fusion cell, the carposporophyte enveloped by a filamentous hull. Spermatangia are unreported. Tetrasporangia are attached to the bearing cells by a basal pit connection.
Information contributed by: G.T. Kraft. The most recent alteration to this page was made on 2018-09-25 by M.D. Guiry.
Taxonomic status: This name is of an entity that is currently accepted taxonomically.
Gender: This genus name is currently treated as feminine.
Most recent taxonomic treatment adopted: Huisman, J.M. (2018). Algae of Australia. Marine benthic algae of north-western Australia. 2. Red algae. pp. [i]-xii, 1-672, 189 figs. Canberra & Melbourne: ABRS & CSIRO Publishing.
Comments: Distribution: The type and two additional species, A. ligulata Harvey ex J. Agardh and A. stuartii Harvey, are endemic to Southern Australia. The genus has been monographed by Min-Thein and Womersley (1976), and was transferred to the Solieriaceae from the Caulacanthaceae (as Rhabdoniaceae) by Gabrielson and Hommersand (1982), who also establish the tribe Agardhiellieae for this and related genera.
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Contributors
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: https://www.algaebase.org/search/genus/detail/?genus_id=35095
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 25 September 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 22 November 2024
