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Stephania palaeosudamericana

Magnoliopsida - Ranunculales - Menispermaceae

Discussion

Placed within the extant clade composed of Stephania, Cissampelos and Cyclea.

Taxonomy
Stephania palaeosudamericana was named by Herrera et al. (2011). Its type specimen is CJ85-ING-1412, a seed/fruit (Endocarp), and it is an impression.

Synonymy list
YearName and author
2011Stephania palaeosudamericana Herrera et al. pp. 2006-2008 figs. 1-7

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RankNameAuthor
kingdomPlantae
phylumSpermatophyta
classMagnoliopsidaCronquist et al. 1996
EudicotDoyle and Hotton 1991
RankNameAuthor
orderRanunculalesJussieu 1820
familyMenispermaceaede Jussieu 1789
genusStephaniaLoureiro 1790
speciespalaeosudamericana

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.

Diagnosis
ReferenceDiagnosis
F. Herrera et al. 2011Endocarp thin-walled; dorsal crest broad rounded, base asymmetrical and acute; with one lateral crest on each side of the plane of symmetry; lateral crests spiny; locule cast apically positioned and with unequal and closely spaced limbs and 10 to 13 ribs; straight ventral vascular tube; endocarp with a tiny perforation in the condylar area, near the base.