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Equisetum columnare

Polypodiopsida - Equisetales - Equisetaceae

Discussion

Proposed to be conserved with this holotype against its senior (nomenclatural) taxonomic synonym, Oncylogonatum carbonarium Koenig (1827), by Doweld (in Taxon 62: 837. 2013).

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Taxonomy
Equisetum columnare was named by Brongniart (1828). Its type specimen is Great Britain, Yorkshire; High Whitby, Jurassic (Lower Bajocian) (Mus. Natl. d’Hist. Nat. Paris: MNHN.F.81)., a stem, and it is an impression.

Sister species lacking formal opinion data
E. aquatile, E. brongniartii, E. burchardtii, E. laterale, E. pellati, E. winchesteri

Synonymy list
YearName and author
1828Equisetum columnare Brongniart p. 115 figs. Brongniart, Hist. Vég. Foss. 1: t. 13, fig. 2, 4. 17 Mar 1828.

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RankNameAuthor
kingdomPlantae
phylumPteridophyta
classPolypodiopsida
subclassEquisetidaeWarm 1883
RankNameAuthor
orderEquisetalesDumortier 1829
familyEquisetaceaeDe Candolle 1804
genusEquisetum
speciescolumnareBrongniart 1828

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Equisetum columnare Brongniart 1828
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Diagnosis
No diagnoses are available