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
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DOI - Digital Object Identifier
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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
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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
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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
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EID of the result in the Scopus database
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