Dasyphloea Montagne, 1842

Holotype species: Dasyphloea insignis Montagne

Original publication and holotype designation: Montagne, [J.F.] C. (1842). Prodromus generum specierumque phycearum novarum, in itinere ad polum antarcticum...ab illustri Dumont d'Urville peracto collectarum, notis diagnosticis tantum huc evulgatarum, descriptionibus verò fusioribus nec non iconibus analyticis iam iamque illustrandarum. pp. [1-]16. Parisiis [Paris]: apud Gide, editorem.

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Description: Uniaxial, radially branched to three orders. Branches tapered at both ends. Axial cell increasing greatly in length, moderately in diameter, surrounded by four periaxial cells, which also elongate and branch di- or trichotomously. Rhizoids present. Cortical cells ovoid to spherical, progressively smaller toward surface. Carpogonium terminating a moderately long, distally recurved, adventitious filament. Fertilized carpogonium contacting enlarged cell(s) of carpogonial branch, and fusion product initiating connecting filaments that contact auxiliary cells on separate adventitious filaments. Up to four gonimoblast initials developing from remnant of connecting filament attached to auxiliary cell. Most cells of gonimoblast maturing into carposporangia. Auxiliary fusion cell formed. Spermatangia superficial. Tetrasporophyte isomorphic. Tetrasporangia zonate, attached basally, scattered in cortex.

The most recent alteration to this page was made on 2023-02-24 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: Mitchell, E.A. (1966). The southern Australian genera of the Dumontiaceae (Rhodophyta). Nova Hedwigia 11(1-4): 209-220, 5 pls (22-16).

Comments: Known only from southern Australia, including Tasmania.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=42793

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 24 February 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 18 April 2024

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