Dryopteris erythrosora | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Division: | Polypodiophyta |
Class: | Polypodiopsida |
Order: | Polypodiales |
Suborder: | Polypodiineae |
Family: | Dryopteridaceae |
Genus: | Dryopteris |
Species: | D. erythrosora |
Binomial name | |
Dryopteris erythrosora (D.C.Eaton) Kuntze | |
Dryopteris erythrosora, the autumn fern or Japanese shield fern, [1] is a species of fern in the family Dryopteridaceae, native to east Asia from China and Japan south to the Philippines, growing in light woodland shade on low mountains or hills. [2]
The specific epithet, erythrosora, is derived from two Ancient Greek words, ἐρυθρός (eruthrós) meaning red, and σωρός (sōrós) meaning heap. [3] So erythrosora literally means red heap, referring to the red sori on the undersides of the pinnules. The specific epithet may really be a reference to the red indusia, which cover the sori. [4]
It is semi-evergreen (in cooler climates), with bipinnate fronds 30–70 cm (12–28 in) tall by 15–35 cm (6–14 in) broad, with 8–20 pairs of pinnae. The fronds have a coppery tint when young, but mature to dark green. It has an upright to down-lying rhizome which is thick and branched, so that it forms several crowns.
The leaves are funnel-shaped with the top ones being leathery shiny, divided twice, triangular in shape and pointy. The individual leaflets are narrow lanceolate. Its edge is almost completely sown up.
The leaf stalks are about a third as long as the leaf, striated, yellow to red, with linear to lancet-shaped brown scales, containing two large and several small vascular bundles in a cross-sectional drawing.
When budding, the young fronds are coppery red and later green. There can also be several leaf outlets per year. The spores, which are kidney-shaped, become ripe between summer and autumn. [5]
Dryopteris erythrosora can tolerate a drier soil than many ferns, but is most successful in moist, humus-rich soil, with a pH range of 6.1 to 7.5, with morning or late afternoon sunshine but not during the middle of the day. [6] It is hardy zones 5 to 11. Propagation is by division in spring, separating the small crowns from the larger crowns, or by spores. It is raised as an ornamental plant in gardens because of its color change in the foliage, which change from dark red to dark green, but not very often. [7]
D erythrosora [8] and the cultivar D. erythrosora 'Brilliance' [9] have gained the Royal Horticultural Society's Award of Garden Merit. [10]
Matteuccia is a genus of ferns with one species: Matteuccia struthiopteris. The species epithet struthiopteris comes from Ancient Greek words στρουθίων (strouthíōn) "ostrich" and πτερίς (pterís) "fern".
Platycerium is a genus of about 18 fern species in the polypod family, Polypodiaceae. Ferns in this genus are widely known as staghorn or elkhorn ferns due to their uniquely shaped fronds. This genus is epiphytic and is native to tropical and temperate areas of South America, Africa, Southeast Asia, Australia, and New Guinea.
Dicksonia squarrosa, the New Zealand tree fern, whekī or rough tree fern, is a common tree fern endemic to New Zealand. It has a slender black trunk that is usually surrounded by many dead brown fronds.
Dryopteris filix-mas, the male fern, is a common fern of the temperate Northern Hemisphere, native to much of Europe, Asia, and North America. It favours damp shaded areas in the understory of woodlands, but also shady places on hedge-banks, rocks, and screes. Near the northern limit of its distribution it prefers sunny, well-drained sites. It is much less abundant in North America than in Europe. The plant is sometimes referred to in ancient literature as worm fern, reflecting its former use against tapeworm.
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. It is a seedless, vascular plant that reproduces via spores and have a life cycle with alternating, free-living sporophyte and gametophyte phases.
Athyrium filix-femina, the lady fern or common lady-fern, is a large, feathery species of fern native to temperate Asia, Europe, North Africa, Canada and the US. It is often abundant in damp, shady woodland environments and is often grown for decoration.
Polystichum aculeatum, the hard shield-fern, is an evergreen fern native to Europe. It is most abundant in upland regions of the British Isles and western France, where it benefits from the combination of mild winters and moist summers, but also occurs more locally across most of Europe except northern Scandinavia, northern Russia; in the Mediterranean region it is confined to high altitudes. It grows on steep slopes in woodlands. it is sometimes considered an indicator of the presence of ancient woodlands.
Polystichum setiferum, the soft shield fern, is an evergreen or semi-evergreen fern native to southern and western Europe. The stalks and most midribs are coated with attractive cinnamon-brown scales. The Latin specific epithet setiferum means “with bristles”.
Alsophila capensis, synonym Cyathea capensis, is a regionally widespread and highly variable species of tree fern. It is indigenous to Southern Africa and South America.
Dryopteris marginalis, vernacularly known as the marginal shield fern or marginal wood fern, is a perennial species of fern found in damp shady areas throughout eastern North America, from Texas to Minnesota and Newfoundland. It favors moderately acid to circumneutral soils in cooler areas but is fairly drought-resistant once established. In the warmer parts of its range, it is most likely to be found on north-facing non-calcareous rock faces. It is common in many altitudes throughout its range, from high ledges to rocky slopes and stream banks. Marginal wood fern's name derives from the fact that the sori are located on the margins, or edges of the leaflets.
Athyrium niponicum, the Japanese painted fern, is a species of fern native to eastern Asia.
Cyrtomium falcatum is a species of fern, commonly known as house holly-fern and Japanese holly fern, in the wood fern family Dryopteridaceae. It is native to eastern Asia.
Polypodium glycyrrhiza, commonly known as licorice fern, many-footed fern, and sweet root, is a summer deciduous fern native to western North America, where it is found in shaded, damp locations.
Dryopteris goldieana, commonly called Goldie's wood fern, or giant wood fern is a fern native to the eastern United States and adjacent areas of Canada, from New Brunswick to Ontario and Georgia. It is the largest native North American species of Dryopteris and along with ostrich fern it is one of the largest ferns in eastern North America. Specimens are known with fronds six feet tall. D. goldieana hybridizes with many other species of Dryopteris and the hybrids tend to be larger than the pure species. It was named by William Hooker in honor of its discoverer, John Goldie. The epithet was originally published as goldiana, but this is regarded as a misspelling to be corrected.
Rumohra adiantiformis, the leather fern or leatherleaf fern, is a species of fern in the wood fern family Dryopteridaceae. It has a wide distribution, mainly in the tropical Southern Hemisphere.
Fern sports are plants that show marked change from the normal type or parent stock as a result of mutation. The term Morphotype is also used for any of a group of different types of individuals of the same species in a population. Fern fronds in sports are typically altered in several ways, such as the frond apex divided and pinnae similarly duplicated.
Polystichum tsus-simense, commonly known as the Korean rock fern, is a perennial herbaceous plant native to East Asia. Its common name corresponds with its ability to grow in shady areas of rock walls. This fern species is a familiar ornamental plant grown in home gardens.
Dryopteris cycadina, the shaggy shield fern or black wood fern, is a species of deciduous or semi-evergreen fern in the family Dryopteridaceae, native to northern India, China, Taiwan and Japan. It grows to 60 cm (24 in) tall by 45 cm (18 in) wide, and produces pale green fronds maturing to dark green, on erect rhizomes.
Dryopteris dilatata, the broad buckler-fern, is a robust species of deciduous or semievergreen fern in the family Dryopteridaceae, native to Europe, particularly western and central Europe. In southern Europe, it is mostly found in mountainous regions. It is also found between the Black Sea and the Caspian Sea. It grows to 90 cm (35 in) tall by 120 cm (47 in) wide, with dark green tripinnate fronds, the ribs covered in brown scales.
Woodwardia radicans, the chain fern, European chain fern or rooting chainfern, is a species of fern in the family Blechnaceae, mainly found in Macaronesia and southwestern Europe, but is also found in southern Italy and Crete. Growing to 1.8 m (6 ft) tall by 2 m (7 ft) broad, it is evergreen with arching fronds. The pinnae have curved, finely-toothed segments. The plant derives its common name from the linked sori on the undersides of the fronds.
The species name literally means "red sori", actually referring to the bright red indusia which covers the young sori.
Media related to Dryopteris erythrosora at Wikimedia Commons