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Taxonomic revision of the Palaeozoic marattialean fern Acithea Schimper

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F06%3A00049101" target="_blank" >RIV/67985831:_____/06:00049101 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Taxonomic revision of the Palaeozoic marattialean fern Acithea Schimper

  • Original language description

    The Pennsylvanian genus Acitheca Schimper, 1879 is revised based on re-examination of the sterile types, plus evidence from well-preserved fertile and sterile material from Canada and the Czech Republic (n =750 specimens). Acitheca was an arborescent marattialean fern about 3.5m high with large, tripinnate or quadripinnate fronds which produced Caulopteris-like frond scars on the trunk. Although its reproductive structures are similar to those of Asterotheca Presl, Acitheca differs in a number of characters of the sterile foliage (especially the venation), and its palynology. The veins fork at least twice (except in the smallest pinnules): after the first dichotomy, the upper branch divides and then the lower branch divides, producing polymorphopteridveining pattern. Synangia occur in two rows, one on either side of the midvein, and usually consist of four elongate sporangia that extend beyond the pinnule margin.

  • Czech name

    Taxonomická revize paleozoického rodu Acitheca Schimper

  • Czech description

    Byla provedena taxonomická revize paleozoického rodu Acitheca. Bylo zkoumano 750 nálezů pocházejících z pensylvánu České republiky a Kanady. Detailně byly popsány spory in situ, norfologie vejířů a lístků, žilnatina, synangia, sporangia a kutikuly. Byl studován stratigrafický a geografický výskyt tohoto důležitého paleozoického rostlinného rodu.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    EF - Botany

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/IAA3013902" target="_blank" >IAA3013902: Fruktifications and spore populations of plant groups Lycopodiophyta, Eguisetophyta and Polypodiophyta from limnic basins of the Czech Republic</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2006

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Review of Palaeobotany and Palynology

  • ISSN

    0034-6667

  • e-ISSN

  • Volume of the periodical

    138

  • Issue of the periodical within the volume

    3-4

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    42

  • Pages from-to

    239-280

  • UT code for WoS article

  • EID of the result in the Scopus database