Pachycaulos

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Lamiids
Ordo: Lamiales

Familia: Gesneriaceae
Subfamilia: Gesnerioideae
Tribus: Gesnerieae
Subtribus: Columneinae
Genus: Pachycaulos
Species: P. nummularia
Name

Pachycaulos J.L.Clark & J.F.Sm., Syst. Bot. 38(2): 458. (2013)

monotypic taxon

References

Smith, J.F. & Clark, J.L. 2013. Molecular phylogenetic analyses reveal undiscovered monospecific genera in the tribe Episcieae (Gesneriaceae). Systematic Botany 38(2): 451-463. DOI: 10.1600/036364413X666723 Paywall PDF Reference page.
Clark J.L., Skog L.E., Boggan J.K. & Ginzbarg, S. 2020. Index to names of New World members of the Gesneriaceae (subfamilies Sanangoideae and Gesnerioideae). Rheedea: Official Journal of Indian Association for Angiosperm Taxonomy 30(1): 190-256. DOI: 10.22244/rheedea.2020.30.01.14 PDF Reference page.
Govaerts, R. et al. 2020. Pachycaulos in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 July 25. Reference page.
International Plant Names Index. 2020. Pachycaulos. Published online. Accessed: July 25 2020.

Pachycaulos is a genus of flowering plants belonging to the family Gesneriaceae. Its only species is Pachycaulos nummularia. Its native range is Southeastern Mexico to Peru.[1]
Taxonomy

The species was first described as Hypocyrta nummularia by Johannes von Hanstein in 1865. The epithet nummularia is a noun in apposition. In 2013, J.L. Clark and J.F. Smith moved it to their new genus Pachycaulos using the incorrect adjectival form of the epithet, nummularium, rather than the correct nummularia.[2]
References

"Pachycaulos J.L.Clark & J.F.Sm. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 19 May 2021.
"Pachycaulos nummularia (Hanst.) J.L.Clark & J.F.Sm". The International Plant Names Index. Retrieved 2021-09-17.