Gymnocarpium

	Gymnocarpium ''Gymnocarpium'' is a small genus of ferns, called oak ferns. It was once placed with various other groups, including the dryopteroid ferns and the athyrioid ferns. Cladistic analysis has demonstrated that ''Gymnocarpium'' and ''Cystopteris'' form a natural but relatively primitive clade that is basal to the asplenioid, thelypterioid, and athyrioid ferns comprehensively. ''Gymnocarpium'' sori are small, round and naked. These ferns generally have a slender, creeping rhizome under the surface of the ground, and fairly thin-textured fronds. ''Gymnocarpium'' species ''Gymnocarpium appalachianum'' – Appalachian oak fern ''Gymnocarpium brittonianum'' ''Gymnocarpium dryopteris'' – (northern) oak fern ''Gymnocarpium fedtschenkoanum'' ''Gymnocarpium disjunctum'' ''Gymnocarpium jessoense'' – western or Nahanni oak fern ''Gymnocarpium oyamense'' ''Gymnocarpium remotepinnatum'' ''Gymnocarpium robertianum ''Gymnocarpium robertianum'', the limestone fern or scented oa ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Gymnocarpium Robertianum ''Gymnocarpium robertianum'', the limestone fern or scented oakfern, is a fern of the family Cystopteridaceae. Description ''Gymnocarpium robertianum'' has small (10–50 cm), deltate, two- to three-pinnate fronds. Fronds arise from creeping rhizomes and have long, delicate rachis. The sori are borne in round clumps on the underside of the blade and lack an indusium. This species differs from the closely related ''G. dryopteris'' in having a densely glandular rachis as well as a more sparsely glandular underside to the blade. ''Gymnocarpium robertianum'' is thought to hybridise with ''G. appalachianum'' giving rise to ''Gymnocarpium'' × ''heterosporum'' W. H. Wagner. This hybrid was only known from Pennsylvania where it has now been eradicated. The hybrid between ''G. robertianum'' and ''G. dryopteris'' is called ''Gymnocarpium'' × ''achriosporum'' Sarvela. This taxon is known from Sweden and Quebec. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Gymnocarpium Brittonianum ''Gymnocarpium'' is a small genus of ferns, called oak ferns. It was once placed with various other groups, including the dryopteroid ferns and the athyrioid ferns. Cladistic analysis has demonstrated that ''Gymnocarpium'' and '' Cystopteris'' form a natural but relatively primitive clade that is basal to the asplenioid, thelypterioid, and athyrioid ferns comprehensively. ''Gymnocarpium'' sori are small, round and naked. These ferns generally have a slender, creeping rhizome under the surface of the ground, and fairly thin-textured fronds. ''Gymnocarpium'' species ''Gymnocarpium appalachianum'' – Appalachian oak fern '' Gymnocarpium brittonianum'' ''Gymnocarpium dryopteris'' – (northern) oak fern '' Gymnocarpium fedtschenkoanum'' '' Gymnocarpium disjunctum'' '' Gymnocarpium jessoense'' – western or Nahanni oak fern '' Gymnocarpium oyamense'' '' Gymnocarpium remotepinnatum'' ''Gymnocarpium robertianum ''Gymnocarpium robertianum'', the limestone fern or sce ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Gymnocarpium Fedtschenkoanum ''Gymnocarpium'' is a small genus of ferns, called oak ferns. It was once placed with various other groups, including the dryopteroid ferns and the athyrioid ferns. Cladistic analysis has demonstrated that ''Gymnocarpium'' and '' Cystopteris'' form a natural but relatively primitive clade that is basal to the asplenioid, thelypterioid, and athyrioid ferns comprehensively. ''Gymnocarpium'' sori are small, round and naked. These ferns generally have a slender, creeping rhizome under the surface of the ground, and fairly thin-textured fronds. ''Gymnocarpium'' species ''Gymnocarpium appalachianum'' – Appalachian oak fern ''Gymnocarpium brittonianum'' ''Gymnocarpium dryopteris'' – (northern) oak fern '' Gymnocarpium fedtschenkoanum'' '' Gymnocarpium disjunctum'' '' Gymnocarpium jessoense'' – western or Nahanni oak fern '' Gymnocarpium oyamense'' '' Gymnocarpium remotepinnatum'' ''Gymnocarpium robertianum ''Gymnocarpium robertianum'', the limestone fern or scen ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Gymnocarpium ''Gymnocarpium'' is a small genus of ferns, called oak ferns. It was once placed with various other groups, including the dryopteroid ferns and the athyrioid ferns. Cladistic analysis has demonstrated that ''Gymnocarpium'' and ''Cystopteris'' form a natural but relatively primitive clade that is basal to the asplenioid, thelypterioid, and athyrioid ferns comprehensively. ''Gymnocarpium'' sori are small, round and naked. These ferns generally have a slender, creeping rhizome under the surface of the ground, and fairly thin-textured fronds. ''Gymnocarpium'' species ''Gymnocarpium appalachianum'' – Appalachian oak fern ''Gymnocarpium brittonianum'' ''Gymnocarpium dryopteris'' – (northern) oak fern ''Gymnocarpium fedtschenkoanum'' ''Gymnocarpium disjunctum'' ''Gymnocarpium jessoense'' – western or Nahanni oak fern ''Gymnocarpium oyamense'' ''Gymnocarpium remotepinnatum'' ''Gymnocarpium robertianum ''Gymnocarpium robertianum'', the limestone fern or scented oa ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Gymnocarpium Remotepinnatum ''Gymnocarpium'' is a small genus of ferns, called oak ferns. It was once placed with various other groups, including the dryopteroid ferns and the athyrioid ferns. Cladistic analysis has demonstrated that ''Gymnocarpium'' and '' Cystopteris'' form a natural but relatively primitive clade that is basal to the asplenioid, thelypterioid, and athyrioid ferns comprehensively. ''Gymnocarpium'' sori are small, round and naked. These ferns generally have a slender, creeping rhizome under the surface of the ground, and fairly thin-textured fronds. ''Gymnocarpium'' species ''Gymnocarpium appalachianum'' – Appalachian oak fern ''Gymnocarpium brittonianum'' ''Gymnocarpium dryopteris'' – (northern) oak fern ''Gymnocarpium fedtschenkoanum'' '' Gymnocarpium disjunctum'' '' Gymnocarpium jessoense'' – western or Nahanni oak fern '' Gymnocarpium oyamense'' '' Gymnocarpium remotepinnatum'' ''Gymnocarpium robertianum ''Gymnocarpium robertianum'', the limestone fern or scent ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Gymnocarpium Jessoense ''Gymnocarpium'' is a small genus of ferns, called oak ferns. It was once placed with various other groups, including the dryopteroid ferns and the athyrioid ferns. Cladistic analysis has demonstrated that ''Gymnocarpium'' and '' Cystopteris'' form a natural but relatively primitive clade that is basal to the asplenioid, thelypterioid, and athyrioid ferns comprehensively. ''Gymnocarpium'' sori are small, round and naked. These ferns generally have a slender, creeping rhizome under the surface of the ground, and fairly thin-textured fronds. ''Gymnocarpium'' species ''Gymnocarpium appalachianum'' – Appalachian oak fern ''Gymnocarpium brittonianum'' ''Gymnocarpium dryopteris'' – (northern) oak fern ''Gymnocarpium fedtschenkoanum'' '' Gymnocarpium disjunctum'' '' Gymnocarpium jessoense'' – western or Nahanni oak fern '' Gymnocarpium oyamense'' ''Gymnocarpium remotepinnatum'' ''Gymnocarpium robertianum ''Gymnocarpium robertianum'', the limestone fern or scente ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Gymnocarpium Appalachianum ''Gymnocarpium'' is a small genus of ferns, called oak ferns. It was once placed with various other groups, including the dryopteroid ferns and the athyrioid ferns. Cladistic Cladistics (; ) is an approach to biological classification in which organisms are categorized in groups ("clades") based on hypotheses of most recent common ancestry. The evidence for hypothesized relationships is typically shared derived char ... analysis has demonstrated that ''Gymnocarpium'' and '' Cystopteris'' form a natural but relatively primitive clade that is basal to the asplenioid, thelypterioid, and athyrioid ferns comprehensively. ''Gymnocarpium'' sori are small, round and naked. These ferns generally have a slender, creeping rhizome under the surface of the ground, and fairly thin-textured fronds. ''Gymnocarpium'' species '' Gymnocarpium appalachianum'' – Appalachian oak fern '' Gymnocarpium brittonianum'' '' Gymnocarpium dryopteris'' – (northern) oak fern '' Gymnocarpium f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Gymnocarpium Dryopteris ''Gymnocarpium dryopteris'', the western oakfern, common oak fern , oak fern, or northern oak fern, is a deciduous fern of the family Cystopteridaceae. It is widespread across much of North America and Eurasia. It has been found in Canada, the United States, Greenland, China, Japan, Korea, Russia, and most of Europe. Description ''Gymnocarpium dryopteris'' has small, delicate fronds up to 40 cm (16 inches) long, with ternately-compound pinnae (leaves). Fronds occur singly. On the underside of matured pinnae the naked sori can be found (the Latin generic name ''gymnocarpium'' means "with naked fruit"). The species grows in coniferous woodlands and on shale talus slopes. ''Gymnocarpium dryopteris'', a forest understory plant, is not found in association with ''Quercus'' (oak). In cultivation in the UK this plant and the cultivar "Plumosum" have gained the Royal Horticultural Society’s Award of Garden Merit. References External links dryopteris :''The moth g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Gymnocarpium Oyamense ''Gymnocarpium oyamense'' is a species of fern in the oak-fern genus ''Gymnocarpium'', family Aspleniaceae. It is found from Nepal to China and Japan and on to New Guinea. It has gained the Royal Horticultural Society The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr (Nor ...'s Award of Garden Merit as an ornamental. References oyamense Ferns of Asia Flora of Nepal Flora of East Himalaya Flora of Tibet Flora of North-Central China Flora of South-Central China Flora of Southeast China Flora of Taiwan Flora of Japan Flora of the Philippines Flora of the Maluku Islands Flora of New Guinea Plants described in 1933 {{Polypodiales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Gymnocarpium Disjunctum ''Gymnocarpium disjunctum'' is a species of fern in the family Cystopteridaceae, commonly known as Pacific oak fern, Hitchcock, C.L. and Cronquist, A. 2018. Flora of the Pacific Northwest, 2nd Edition, p. 58. University of Washington Press, Seattle. western oak fern, or Pacific oakfern. Description ''Gymnocarpium disjunctum'' is a medium green fern with delicate-looking leaves that grows from a long slender creeping rhizome. The leaves do not arise from a central point but rather grow up individually from the creeping rhizome, often forming a loose grouping on the forest floor. The petioles (stipes) are 1-3 mm in diameter and 12-44 cm long with sparse glandular hairs distally. The petiole and blade midribs are brownish green to black in color. The leaves are bright to medium green and are 20-68 cm in length, with a broadly deltate blade, and are 3-pinnate to pinnatifid. The abaxial (lower) leaf surface and rachis are glabrous (hairless) or with sparse glandular hairs, and the ada ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Athyrioideae The Athyriaceae (ladyferns and allies) are a family of terrestrial ferns in the order Polypodiales. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the family is placed in the suborder Aspleniineae, and includes two genera. Alternatively, it may be treated as the subfamily Athyrioideae of a very broadly defined family Aspleniaceae. The family has with a cosmopolitan distribution. Description Species of the Athyriaceae are terrestrial or lithophytic, less commonly aquatic. They grow from various kinds of rhizome: short or long, creeping or erect, branched or not. The distribution and evolution of characters in the family is complex, and the genera have few constant features by which they can be identified. The sporangia have stalks two or three cells wide in the middle, and contain brown monolete spores. Taxonomy Earlier classifications The family was first created by Arthur H.G. Alston in 1956. It has had a varied history. In 2014, Christenhusz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]

	Gymnocarpium ''Gymnocarpium'' is a small genus of ferns, called oak ferns. It was once placed with various other groups, including the dryopteroid ferns and the athyrioid ferns. Cladistic analysis has demonstrated that ''Gymnocarpium'' and ''Cystopteris'' form a natural but relatively primitive clade that is basal to the asplenioid, thelypterioid, and athyrioid ferns comprehensively. ''Gymnocarpium'' sori are small, round and naked. These ferns generally have a slender, creeping rhizome under the surface of the ground, and fairly thin-textured fronds. ''Gymnocarpium'' species ''Gymnocarpium appalachianum'' – Appalachian oak fern ''Gymnocarpium brittonianum'' ''Gymnocarpium dryopteris'' – (northern) oak fern ''Gymnocarpium fedtschenkoanum'' ''Gymnocarpium disjunctum'' ''Gymnocarpium jessoense'' – western or Nahanni oak fern ''Gymnocarpium oyamense'' ''Gymnocarpium remotepinnatum'' ''Gymnocarpium robertianum ''Gymnocarpium robertianum'', the limestone fern or scented oa ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Gymnocarpium Robertianum ''Gymnocarpium robertianum'', the limestone fern or scented oakfern, is a fern of the family Cystopteridaceae. Description ''Gymnocarpium robertianum'' has small (10–50 cm), deltate, two- to three-pinnate fronds. Fronds arise from creeping rhizomes and have long, delicate rachis. The sori are borne in round clumps on the underside of the blade and lack an indusium. This species differs from the closely related ''G. dryopteris'' in having a densely glandular rachis as well as a more sparsely glandular underside to the blade. ''Gymnocarpium robertianum'' is thought to hybridise with ''G. appalachianum'' giving rise to ''Gymnocarpium'' × ''heterosporum'' W. H. Wagner. This hybrid was only known from Pennsylvania where it has now been eradicated. The hybrid between ''G. robertianum'' and ''G. dryopteris'' is called ''Gymnocarpium'' × ''achriosporum'' Sarvela. This taxon is known from Sweden and Quebec. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Gymnocarpium Brittonianum ''Gymnocarpium'' is a small genus of ferns, called oak ferns. It was once placed with various other groups, including the dryopteroid ferns and the athyrioid ferns. Cladistic analysis has demonstrated that ''Gymnocarpium'' and '' Cystopteris'' form a natural but relatively primitive clade that is basal to the asplenioid, thelypterioid, and athyrioid ferns comprehensively. ''Gymnocarpium'' sori are small, round and naked. These ferns generally have a slender, creeping rhizome under the surface of the ground, and fairly thin-textured fronds. ''Gymnocarpium'' species ''Gymnocarpium appalachianum'' – Appalachian oak fern '' Gymnocarpium brittonianum'' ''Gymnocarpium dryopteris'' – (northern) oak fern '' Gymnocarpium fedtschenkoanum'' '' Gymnocarpium disjunctum'' '' Gymnocarpium jessoense'' – western or Nahanni oak fern '' Gymnocarpium oyamense'' '' Gymnocarpium remotepinnatum'' ''Gymnocarpium robertianum ''Gymnocarpium robertianum'', the limestone fern or sce ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Gymnocarpium Fedtschenkoanum ''Gymnocarpium'' is a small genus of ferns, called oak ferns. It was once placed with various other groups, including the dryopteroid ferns and the athyrioid ferns. Cladistic analysis has demonstrated that ''Gymnocarpium'' and '' Cystopteris'' form a natural but relatively primitive clade that is basal to the asplenioid, thelypterioid, and athyrioid ferns comprehensively. ''Gymnocarpium'' sori are small, round and naked. These ferns generally have a slender, creeping rhizome under the surface of the ground, and fairly thin-textured fronds. ''Gymnocarpium'' species ''Gymnocarpium appalachianum'' – Appalachian oak fern ''Gymnocarpium brittonianum'' ''Gymnocarpium dryopteris'' – (northern) oak fern '' Gymnocarpium fedtschenkoanum'' '' Gymnocarpium disjunctum'' '' Gymnocarpium jessoense'' – western or Nahanni oak fern '' Gymnocarpium oyamense'' '' Gymnocarpium remotepinnatum'' ''Gymnocarpium robertianum ''Gymnocarpium robertianum'', the limestone fern or scen ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Gymnocarpium ''Gymnocarpium'' is a small genus of ferns, called oak ferns. It was once placed with various other groups, including the dryopteroid ferns and the athyrioid ferns. Cladistic analysis has demonstrated that ''Gymnocarpium'' and ''Cystopteris'' form a natural but relatively primitive clade that is basal to the asplenioid, thelypterioid, and athyrioid ferns comprehensively. ''Gymnocarpium'' sori are small, round and naked. These ferns generally have a slender, creeping rhizome under the surface of the ground, and fairly thin-textured fronds. ''Gymnocarpium'' species ''Gymnocarpium appalachianum'' – Appalachian oak fern ''Gymnocarpium brittonianum'' ''Gymnocarpium dryopteris'' – (northern) oak fern ''Gymnocarpium fedtschenkoanum'' ''Gymnocarpium disjunctum'' ''Gymnocarpium jessoense'' – western or Nahanni oak fern ''Gymnocarpium oyamense'' ''Gymnocarpium remotepinnatum'' ''Gymnocarpium robertianum ''Gymnocarpium robertianum'', the limestone fern or scented oa ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Gymnocarpium Remotepinnatum ''Gymnocarpium'' is a small genus of ferns, called oak ferns. It was once placed with various other groups, including the dryopteroid ferns and the athyrioid ferns. Cladistic analysis has demonstrated that ''Gymnocarpium'' and '' Cystopteris'' form a natural but relatively primitive clade that is basal to the asplenioid, thelypterioid, and athyrioid ferns comprehensively. ''Gymnocarpium'' sori are small, round and naked. These ferns generally have a slender, creeping rhizome under the surface of the ground, and fairly thin-textured fronds. ''Gymnocarpium'' species ''Gymnocarpium appalachianum'' – Appalachian oak fern ''Gymnocarpium brittonianum'' ''Gymnocarpium dryopteris'' – (northern) oak fern ''Gymnocarpium fedtschenkoanum'' '' Gymnocarpium disjunctum'' '' Gymnocarpium jessoense'' – western or Nahanni oak fern '' Gymnocarpium oyamense'' '' Gymnocarpium remotepinnatum'' ''Gymnocarpium robertianum ''Gymnocarpium robertianum'', the limestone fern or scent ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Gymnocarpium Jessoense ''Gymnocarpium'' is a small genus of ferns, called oak ferns. It was once placed with various other groups, including the dryopteroid ferns and the athyrioid ferns. Cladistic analysis has demonstrated that ''Gymnocarpium'' and '' Cystopteris'' form a natural but relatively primitive clade that is basal to the asplenioid, thelypterioid, and athyrioid ferns comprehensively. ''Gymnocarpium'' sori are small, round and naked. These ferns generally have a slender, creeping rhizome under the surface of the ground, and fairly thin-textured fronds. ''Gymnocarpium'' species ''Gymnocarpium appalachianum'' – Appalachian oak fern ''Gymnocarpium brittonianum'' ''Gymnocarpium dryopteris'' – (northern) oak fern ''Gymnocarpium fedtschenkoanum'' '' Gymnocarpium disjunctum'' '' Gymnocarpium jessoense'' – western or Nahanni oak fern '' Gymnocarpium oyamense'' ''Gymnocarpium remotepinnatum'' ''Gymnocarpium robertianum ''Gymnocarpium robertianum'', the limestone fern or scente ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Gymnocarpium Appalachianum ''Gymnocarpium'' is a small genus of ferns, called oak ferns. It was once placed with various other groups, including the dryopteroid ferns and the athyrioid ferns. Cladistic Cladistics (; ) is an approach to biological classification in which organisms are categorized in groups ("clades") based on hypotheses of most recent common ancestry. The evidence for hypothesized relationships is typically shared derived char ... analysis has demonstrated that ''Gymnocarpium'' and '' Cystopteris'' form a natural but relatively primitive clade that is basal to the asplenioid, thelypterioid, and athyrioid ferns comprehensively. ''Gymnocarpium'' sori are small, round and naked. These ferns generally have a slender, creeping rhizome under the surface of the ground, and fairly thin-textured fronds. ''Gymnocarpium'' species '' Gymnocarpium appalachianum'' – Appalachian oak fern '' Gymnocarpium brittonianum'' '' Gymnocarpium dryopteris'' – (northern) oak fern '' Gymnocarpium f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Gymnocarpium Dryopteris ''Gymnocarpium dryopteris'', the western oakfern, common oak fern , oak fern, or northern oak fern, is a deciduous fern of the family Cystopteridaceae. It is widespread across much of North America and Eurasia. It has been found in Canada, the United States, Greenland, China, Japan, Korea, Russia, and most of Europe. Description ''Gymnocarpium dryopteris'' has small, delicate fronds up to 40 cm (16 inches) long, with ternately-compound pinnae (leaves). Fronds occur singly. On the underside of matured pinnae the naked sori can be found (the Latin generic name ''gymnocarpium'' means "with naked fruit"). The species grows in coniferous woodlands and on shale talus slopes. ''Gymnocarpium dryopteris'', a forest understory plant, is not found in association with ''Quercus'' (oak). In cultivation in the UK this plant and the cultivar "Plumosum" have gained the Royal Horticultural Society’s Award of Garden Merit. References External links dryopteris :''The moth g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Gymnocarpium Oyamense ''Gymnocarpium oyamense'' is a species of fern in the oak-fern genus ''Gymnocarpium'', family Aspleniaceae. It is found from Nepal to China and Japan and on to New Guinea. It has gained the Royal Horticultural Society The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr (Nor ...'s Award of Garden Merit as an ornamental. References oyamense Ferns of Asia Flora of Nepal Flora of East Himalaya Flora of Tibet Flora of North-Central China Flora of South-Central China Flora of Southeast China Flora of Taiwan Flora of Japan Flora of the Philippines Flora of the Maluku Islands Flora of New Guinea Plants described in 1933 {{Polypodiales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Gymnocarpium Disjunctum ''Gymnocarpium disjunctum'' is a species of fern in the family Cystopteridaceae, commonly known as Pacific oak fern, Hitchcock, C.L. and Cronquist, A. 2018. Flora of the Pacific Northwest, 2nd Edition, p. 58. University of Washington Press, Seattle. western oak fern, or Pacific oakfern. Description ''Gymnocarpium disjunctum'' is a medium green fern with delicate-looking leaves that grows from a long slender creeping rhizome. The leaves do not arise from a central point but rather grow up individually from the creeping rhizome, often forming a loose grouping on the forest floor. The petioles (stipes) are 1-3 mm in diameter and 12-44 cm long with sparse glandular hairs distally. The petiole and blade midribs are brownish green to black in color. The leaves are bright to medium green and are 20-68 cm in length, with a broadly deltate blade, and are 3-pinnate to pinnatifid. The abaxial (lower) leaf surface and rachis are glabrous (hairless) or with sparse glandular hairs, and the ada ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Athyrioideae The Athyriaceae (ladyferns and allies) are a family of terrestrial ferns in the order Polypodiales. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the family is placed in the suborder Aspleniineae, and includes two genera. Alternatively, it may be treated as the subfamily Athyrioideae of a very broadly defined family Aspleniaceae. The family has with a cosmopolitan distribution. Description Species of the Athyriaceae are terrestrial or lithophytic, less commonly aquatic. They grow from various kinds of rhizome: short or long, creeping or erect, branched or not. The distribution and evolution of characters in the family is complex, and the genera have few constant features by which they can be identified. The sporangia have stalks two or three cells wide in the middle, and contain brown monolete spores. Taxonomy Earlier classifications The family was first created by Arthur H.G. Alston in 1956. It has had a varied history. In 2014, Christenhusz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]