Cubiculosporum Kraft, 1973
Holotype species: Cubiculosporum koronicarpis Kraft
Original publication and holotype designation: Kraft, G.T. (1973). The morphology of Cubiculosporum koronicarpis gen. et sp. nov., representing a new family in the Gigartinales (Rhodophyta). American Journal of Botany 60: 872-882.
Request PDFDescription: A family of a single genus and species. Plants are multiaxial. All but the surface cells are multinucleate, and inner cortical cells are linked by secondary pit connections. Female thalli are non-procarpic. A single short connecting filament links the carpogonium with the auxiliary cell, which is an undifferentiated intercalary cell in a vegetative cortical filament. Gonimoblast initials are multiple and gonimoblast filaments are diffuse, at first directed from the auxiliary cell toward the thallus center. The mature cystocarp is a mixture of gonimoblast filaments growing between and partially fused to gametophytic medullary cells. Carposporangia are single or in short chains on peripheral gonimoblast cells, released through an ostiole. Spermatangia are formed in isolated patches on outer cortical mother cells. Tetrasporophytes are isomorphic with gametophytes, the tetrasporangia zonate and terminal. Cubiculosporum plants reach 6 cm in height and are erect from a discoid base, with secondary attachments produced by lower lateral branches. They are cartilaginous in texture, with several orders of pinnate branching arising from the margins of compressed axes. Axes are composed of a filamentous medulla and pseudoparenchymatous cortex of isodiametric cells. Carpogonial branches are 3-celled and directed toward the thallus surface. Mature carposporangia are produced in chambers formed by the enlargement of the fertile pinnule and the elongation of cells in 2-3 layers of the outer medulla. Spermatia are formed as clusters of mother cells borne radially around basal cells separated by paraphyses of elongate sterile cortical cells.
Information contributed by: G.T. Kraft. The most recent alteration to this page was made on 2010-10-07 by M.D. Guiry.
Taxonomic status: This name is of an entity that is currently accepted taxonomically.
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.
Comments: Distribution: Southern Luzon (Philippines) and the southern end of the Great Barrier Reef (Kraft and Huisman 1981).
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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=42787
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 07 October 2010. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 25 April 2024
