Onoclea

Onoclea is a genus of plants in the family Onocleaceae, native to moist habitats in eastern Asia and eastern North America. They are deciduous ferns with sterile fronds arising from creeping rhizomes in spring, dying down at first frost. Fertile fronds appear in late summer. Depending on the authority, the genus contains one to five species.[2]

Onoclea
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Polypodiales
Suborder: Aspleniineae
Family: Onocleaceae
Genus: Onoclea
L.
Synonyms[1]
  • Angiopteris Mitch. ex Adans., nom. illeg., non Hoffm.
  • Calypterium Bernh., nom. superfl.
  • Pteridinodes Kuntze, nom. superfl.
  • Ragiopteris C.Presl
  • Riedlea Mirb., nom. superfl.

Species

In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), Onoclea has a single species:[3]

Transferred species

The following Onoclea species have been transferred to other genera as indicated below.[1]

  • Onoclea attenuata Sw. = Lomaridium attenuatum (Sw.) Gasper & V.A.O.Dittrich
  • Onoclea boryana Sw. = Lomariocycas tabularis (Thunb.) Gasper & A.R.Sm.
  • Onoclea hintonii (F.Ballard) Christenh. = Onocleopsis hintonii F.Ballard
  • Onoclea intermedia (C.Chr.) M.Kato, T.Suzuki & Nakato = Pentarhizidium intermedium (C.Chr.) Hayata
  • Onoclea lineata (Sw.) Sw. = Parablechnum lineatum (Sw.) Gasper & Salino
  • Onoclea nuda Labill. = Lomaria nuda (Labill.) Willd.
  • Onoclea orientalis (Hook.) Hook. = Pentarhizidium orientale (Hook.) Hayata
  • Onoclea pensylvanica (Willd.) Sm. = Matteuccia struthiopteris var. pensylvanica (Willd.) Morton
  • Onoclea polypodioides (Sw.) Sw., nom. illeg. = Lomaridium fragile (Liebm.) Gasper & V.A.O.Dittrich
  • Onoclea polypodioides L. = Gleichenia polypodioides (L.) Sm.
  • Onoclea scandens Sw., nom. illeg. superfl. = Stenochlaena palustris (Burm.fil.) Bedd.
  • Onoclea spicant (L.) Hoffm. = Struthiopteris spicant (L.) Weiss – deer fern (Europe, western North America)
  • Onoclea spicata (L.f.) Sw. = Lepisorus spicatus (L.f.) Li Wang
  • Onoclea striatum Sw. = Parablechnum ryanii (Kaulf.) Gasper & Salino
  • Onoclea struthiopteris (L.) Hoffm. = Matteuccia struthiopteris (L.) Tod.

References
  1. Hassler, Michael (21 August 2022), "Onoclea", World Ferns. Synonymic Checklist and Distribution of Ferns and Lycophytes of the World, 14.1, retrieved 2022-08-27
  2. RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 978-1405332965.
  3. PPG I (2016). "A community-derived classification for extant lycophytes and ferns". Journal of Systematics and Evolution. 54 (6): 563–603. doi:10.1111/jse.12229. S2CID 39980610.
  4. O. sensibilis Tropicos.org. Missouri Botanical Garden. 30 Jan 2012


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