Paraceterach rotundifolia

Pellaea rotundifolia

Taxonavigation

Taxonavigation: Polypodiales
Superregnum: Eukaryota Cladus: Diaphoretickes Cladus: CAM Cladus: Archaeplastida Regnum: Plantae Divisio: Tracheophyta Divisio: Pteridophyta Classis: Polypodiopsida Ordo: Polypodiales

Familia: Pteridaceae
Subfamilia: Cheilanthoideae
Genus: Paraceterach
Species: Paraceterach rotundifolia

Name

Paraceterach rotundifolia (G.Forst.) Li Bing Zhang, X.M.Zhou & Jing Zhao, Phytotaxa 731(3): 229 (2025).

Synonyms

• Basionym
  • Pteris rotundifolia G.Forst., Fl. Ins. Austr. 79 (1786).
    • Lectotype (designated by Nicolson & Fosberg 2003): s. loc., Herb. G.Forster 260 (BM 001048407).
• Homotypic
  • Platyloma rotundifolium (G.Forst.) J.Sm., J. Bot. (Hooker) 4: 160 (1841).
  • Allosorus rotundifolius (G.Forst.) Kunze, Linnaea 23: 219 (1850).
  • Pellaea rotundifolia (G.Forst.) Hook., Sp. Fil. 2: 136 (1858).
  • Pteris falcata var. rotundifolia (G.Forst.) F.M.Bailey, Fern World Australia 45 (1881).
  • Hemionitis rotundifolia (G.Forst.) Christenh., Global Fl. 4: 20 (2018).
• Heterotypic
  • Pellaea rotundifolia var. oblongifolia Hook., Sp. Fil. 2: 136 (1858).
    • Holotype: New Zealand, Colenso 1995, K 001090021 [collected from dry woods near Te Hawera – see St. George 2009: 239].

Distribution

Native distribution areas:
Continental: Australasia Regional: New Zealand Chatham Islands, New Zealand North (main island, Three Kings Islands), New Zealand South. References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition

References

Primary references

• Zhao, J., Ma, D.-N., Smith, A.R., Liang, Z.-L., Zhou, X.-M. & Zhang, L.-B. 2025. Phylogeny and systematics of the fern genus Pellaea and its allies (Pteridaceae). Phytotaxa 731(3): 221–242. DOI: 10.11646/phytotaxa.731.3.3 Reference page. 
• Hooker, W.J. 1851–1858. Species Filicum being descriptions of the known ferns, particularly of such as exist in the author's herbarium, or are with sufficient accuracy described in works to which are he has access; accompanied with numerous figures. Volume II containing Adiantum – Ceratopteris. v + 250 pp. + 70 tab. London: William Pamplin. BHL Biblioteca Digital MDZ Reference page. 

Additional references

• Nicolson, D.H. & Fosberg, F.R.† 2003. The Forsters and the Botany of the Second Cook Expedition (1772–1775). Regnum Vegetabile 139: 1–760. Reference page. 
• St. George, I. 2009. Colenso’s collections. New Zealand Native Orchid Group, Wellington.
• Brownsey, P.J. & Perrie, L.R. 2021. Pteridaceae. In: Breitwieser, I. (ed.) Flora of New Zealand — Ferns and Lycophytes. Fascicle 30. Manaaki Whenua Press, Lincoln. DOI: 10.7931/dtkj-x078 Reference page. 

Links

• Govaerts, R. et al. 2023. Paraceterach rotundifolia in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2023 Jul 2. Reference page. 
• Tropicos.org 2023. Paraceterach rotundifolia. Missouri Botanical Garden. Published online. Accessed: 2 Jul 2023. Reference page.
• International Plant Names Index. 2023. Paraceterach rotundifolia. Published online. Accessed: 2 Jul 2023. Reference page.
• Hassler, M. 2023. World Ferns. Checklist of Ferns and Lycophytes of the World. . Paraceterach rotundifolia Accessed: 2 Jul 2023. Reference page.

Vernacular names

• English: button fern

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