Interesting Facts
Description
Genus Gymnocarpium
Plants
terrestrial
. Stems long-creeping, stolons absent. Leaves monomorphic
, dying back in winter. Petiole
ca.
1.5--3 times length
of blade
, base
not swollen; vascular bundles
2, lateral
, ± oblong
in cross
section
. Blade broadly deltate, ternate
, or ovate
, 2--3-pinnate-pinnatifid, reduced distally to pinnatifid
apex, herbaceous. Pinnae weakly articulate
to rachis but persistent
, segment margins
entire to crenate
; proximal
pinnae longest, petiolulate
, usually ± inequilateral
with pinnules
on basiscopic side longer
than those on acroscopic
side; costae adaxially grooved
, grooves
not continuous from rachis to costae; indument
lacking or of minute (0.1 mm) glands
abaxially and sometimes along costae adaxially. Veins free
, simple
or forked
. Sori in 1 row
between midrib
and margin, ± round
; indusia absent. Spores brownish, rugose
. x
= 40.
Species 8: north temperate regions
, North America, Eurasia
.[1]
Taxonomy
- Domain:
Eukaryota
(
)
- Whittaker & Margulis,1978
- eukaryotes
- Kingdom:
Plantae
()
- Haeckel, 1866
- Plants
- Subkingdom:
Viridaeplantae
()
- Cavalier-Smith, 1981
- Phylum:
Tracheophyta
()
- Sinnott, 1935 ex Cavalier-Smith, 1998
- Vascular Plants
- Subphylum:
Euphyllophytina
()
- Infraphylum:
Moniliformopses
()
- Kenrick & Crane, 1997, Nom. Nud.
- Class:
Polypodiopsida
()
- Cronquist et al.
- Order:
Polypodiales
()
- Link
- Family:
Woodsiaceae
()
- (Chapm.) Herter
- Genus:
Gymnocarpium
()
- Newman, 1851
- Oak fern [Greek gymnos, naked, and karpos, fruit, referring to the absence of indusia]
- Specific epithet:
obtusifolium
- (Schrank) Schwarz
- Botanical name: - Gymnocarpium obtusifolium (Schrank) Schwarz
- Specific epithet:
obtusifolium
- (Schrank) Schwarz
- Genus:
Gymnocarpium
(
- Family:
Woodsiaceae
(
- Order:
Polypodiales
(
- Class:
Polypodiopsida
(
- Infraphylum:
Moniliformopses
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Tracheophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
Notes
Publishing author
: O.Schwarz Publication
: Mitt. Thüring. Bot. Ges.
1, heft 1: 84 1949
Basionym
author: (Schrank)
Similar Species
Members of the genus Gymnocarpium
ZipcodeZoo has pages for 13 species, subspecies, varieties, forms, and cultivars in this genus:
G. achriosporum (Oakfern) · G. appalachianum (Appalachian Oak Fern) · G. disjunctum (Pacific Oak Fern) · G. dryopteris (Northern Oak Fern) · G. heterosporum (Blackspore Oakfern) · G. intermedium (Intermediate Oakfern) · G. jessoense (Asian Oakfern) · G. jessoense parvulum (Asian Oakfern) · G. jessoense subsp. parvulum (Asian Oakfern) · G. robertianum (Limestone Oak Fern) · G. × achriosporum (Oakfern) · G. x heterosporum (Black-Spore Oak Fern) · G. × intermedium (Intermediate Oakfern)
More Info
- Search for Pictures: images.google.com
- Search for Scholarly Articles: Google Scholar
- Search using Scientific Name and Vernacular Names: All the Web | AltaVista Canada | AltaVista | Excite | Google | HotBot | Lycos
- Search using Specialized Databases: GenBank | Medline | Scirus | CISTI/CAL | Agricola Periodicals | Agricola Books
Further Reading
- Pryer, K. M. 1992. The status of Gymnocarpium heterosporum and G. robertianum in Pennsylvania. Amer. Fern J. 82: 34--39.
- Pryer, K. M. and C. H. Haufler. 1993. Isozymic and chromosomal evidence for the allotetraploid origin of Gymnocarpium dryopteris (Dryopteridaceae). Syst. Bot. 18: 150--172.
- Pryer, K. M. and D. M. Britton. 1983. Spore studies in the genus Gymnocarpium. Canad. J. Bot. 61: 377--388.
- Pryer, K. M., D. M. Britton, and J. McNeill. 1983. A numerical analysis of chromatographic profiles in North American taxa of the fern genus Gymnocarpium. Canad. J. Bot. 61: 2592--2602.
- Sarvela, J. 1978. A synopsis of the fern genus Gymnocarpium. Ann. Bot. Fenn. 15: 101--106.
- Sarvela, J., D. M. Britton, and K. M. Pryer. 1981. Studies on the Gymnocarpium robertianum complex in North America. Rhodora 83: 421--431.
- Wagner, W. H. Jr. 1966b. New data on North American oak ferns, Gymnocarpium. Rhodora 68: 121--138.
Notes
Contributors
- Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 11, 2012.
Identifiers
- Biodiversity Heritage Library NamebankID: 10559810
- Globally Unique Identifier: urn:lsid:ipni.org:names:115525-2
- International Plant Names Index (IPNI) ID: 17396820
- Zipcode Zoo Species Identifier: 743095
Footnotes
- Kathleen M. Pryer "Gymnocarpium". in Flora of North America Vol. 2. Oxford University Press. Online at EFloras.org. [back]
