Onoclea

Onoclea
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Order:	Polypodiales
Suborder:	Aspleniineae
Family:	Onocleaceae
Genus:	Onoclea; L.
Type species
	Onoclea sensibilis; von Linné
Synonyms
	Angiopteris Mitch. ex Adans. nom. illeg., non Hoffm. ; Calypterium Bernh. nom. superfl. ; Pteridinodes Siegesb. ex Kuntze nom. superfl. ; Ragiopteris C.Presl ; Riedlea Mirb. nom. superfl. non Ventenat ;

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]

Species

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

†O. fecunda (Lesquereux 1873) Knowlton 1898
†O. glossopteroides (Dawson 1884) Krassilov 1979
†O. grandifolia Akhmetiev 1969
†O. hebridica Gardner 1886
†O. minima Knowlton 1899
†O. reducta Cockerell 1908
O. sensibilis L. (sensitive fern (eastern Asia, eastern North America))^[4]

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

^ ^a ^b 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
^ RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 978-1405332965.
^ 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.
^ O. sensibilis Tropicos.org. Missouri Botanical Garden. 30 Jan 2012

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[CFLW-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

[RHSAZ-2] RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 978-1405332965.

[PPGI-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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