Oblong woodsia | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Division: | Polypodiophyta |
Class: | Polypodiopsida |
Order: | Polypodiales |
Suborder: | Aspleniineae |
Family: | Woodsiaceae |
Genus: | Woodsia |
Species: | W. ilvensis |
Binomial name | |
Woodsia ilvensis | |
Synonyms | |
Acrostichum ilvenseL. (basionym) |
Woodsia ilvensis, commonly known as oblong woodsia, [3] is a fern found in North America and northern Eurasia. Also known as rusty woodsia or rusty cliff fern, it is typically found on sunny, exposed cliffs and rocky slopes and on thin, dry, acidic soils. [2] [4] [5] [6]
Its distribution is circumpolar. It is most abundant in Scandinavia, the Ural and Altai mountains and the eastern United States. [6] It is also found in Japan, [4] Alaska, Canada, coastal Greenland and various European locations including the Alps.
It is considered "Threatened" or "Endangered" in the states of Illinois, Iowa, and Maryland and "Presumed Extirpated" in Ohio. [1] [2] Also found in West Virginia and North Carolina, it is the most common Woodsia species in the US. [5]
Its UK distribution is confined to Angus and the Moffat Hills in Scotland, north Wales and Teesdale and the Lake District in England. [6] There are fewer than 90 wild clumps in the whole of the UK, where it is on the edge of its natural range and is considered to be "Endangered". [6] [7] For this reason it became a protected species in the UK in 1975 under the Conservation of Wild Creatures and Wild Plants Act. [8]
The plant was first identified as a separate species from specimens collected in Scotland in Bolton's 1785 publication Filices Britannica. Bolton distinguished between Acrostichum ilvense and Acrostichum alpina, now Woodsia ilvensis and Woodsia alpina respectively, which had previously been conflated. [6] The genus Woodsia was established in 1810 by Robert Brown, who named it after the English botanist Joseph Woods. [5] [6] "Ilvensis" is the genitive form of the Latin name for the island of Elba. [4]
The leaves are typically 6 inches long and 1 inch wide, with stiff, erected pointed tips and cut into 12 nearly opposite stemless leaflets. The underside of the leaves are covered in white woolly fibres, which later turn rusty brown. [9]
Oblong woodsia came under severe threat from Victorian fern collectors in the mid 19th century in Scotland, especially in the Moffat Hills. These hills once had the most extensive UK populations of the species but there now remain only a few small colonies whose future is under threat. This period of collecting became known as pteridomania (or "fern-fever"). The Royal Botanic Garden Edinburgh plan to use cultivated specimens and a spore bank to restore depleted wild populations. [6]
The Royal Botanic Garden Edinburgh (RBGE) is a scientific centre for the study of plants, their diversity and conservation, as well as a popular tourist attraction. Founded in 1670 as a physic garden to grow medicinal plants, today it occupies four sites across Scotland—Edinburgh, Dawyck, Logan and Benmore—each with its own specialist collection. The RBGE's living collection consists of more than 13,302 plant species, whilst the herbarium contains in excess of 3 million preserved specimens.
Ulmus thomasii, the rock elm or cork elm, is a deciduous tree native primarily to the Midwestern United States. The tree ranges from southern Ontario and Quebec, south to Tennessee, west to northeastern Kansas, and north to Minnesota.
Natural history of Scotland concerns the flora, fauna and mycota of Scotland.
Grey Mare's Tail is a 60-metre (200 ft) hanging valley waterfall near to Moffat in southern Scotland. The fall is produced by the Tail Burn flowing from Loch Skeen cascading into the Moffat Water in the lower valley below.
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Cicerbita alpina, commonly known as the alpine sow-thistle or alpine blue-sow-thistle is a perennial herbaceous species of plant sometimes placed in the genus Cicerbita of the family Asteraceae, and sometimes placed in the genus Lactuca as Lactuca alpina. It is native to upland and mountainous parts of Europe.
Woodsia is a genus of ferns in the order Polypodiales. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it is the only genus in the family Woodsiaceae, placed in the suborder Aspleniineae. The family can also be treated as the subfamily Woodsioideae of a very broadly defined family Aspleniaceae sensu lato. Species of Woodsia are commonly known as cliff ferns.
The flora of Scotland is an assemblage of native plant species including over 1,600 vascular plants, more than 1,500 lichens and nearly 1,000 bryophytes. The total number of vascular species is low by world standard but lichens and bryophytes are abundant and the latter form a population of global importance. Various populations of rare fern exist, although the impact of 19th-century collectors threatened the existence of several species. The flora is generally typical of the north west European part of the Palearctic realm and prominent features of the Scottish flora include boreal Caledonian forest, heather moorland and coastal machair. In addition to the native varieties of vascular plants there are numerous non-native introductions, now believed to make up some 43% of the species in the country.
Woodsia alpina, commonly known as alpine woodsia, is a fern found in northern latitudes in North America and Eurasia. Also known as northern woodsia or alpine cliff fern, it is typically found in crevices, scree slopes and cliffs containing slate and calcareous rocks, especially limestone.
Vandenboschia speciosa, synonym Trichomanes speciosum, commonly known as the Killarney fern, is a species of fern found widely in Western Europe. It is most abundant in Ireland, the United Kingdom, Brittany, Galicia, Canary Islands, Madeira and the Azores, but is also found in other locations including France, Spain, Portugal and Italy. It is a relict endemic European species with a disjunct distribution, having had a much wider distribution before the climate changes of the Tertiary and Quaternary periods.
Cystopteris dickieana, commonly known as Dickie's bladder-fern, is a fern with a wide distribution in the Northern Hemisphere. There is debate amongst botanists as to whether it is a species in its own right or a variant of C. fragilis.
Pteridomania or Fern-Fever was a Victorian craze for ferns. Decorative arts of the period presented the fern motif in pottery, glass, metal, textiles, wood, printed paper, and sculpture, with ferns "appearing on everything from christening presents to gravestones and memorials".
Corrie Fee is a glacier-carved corrie situated at the head of Glen Clova in the Angus Glens of Scotland. It forms part of Corrie Fee National Nature Reserve (NNR), which is managed by NatureScot and lies within the Cairngorms National Park. The adjoining Corrie Sharroch and the slopes of Craig Rennet are also included in the NNR.
Minuartia stricta is a species of flowering plant in the family Caryophyllaceae known by the common names bog stitchwort, Teesdale sandwort and rock sandwort. It has a circumboreal distribution, occurring throughout much of the northernmost Northern Hemisphere from the lower Arctic into the alpine climates of mountainous areas in temperate Eurasia and North America. It grows in several types of habitat, including meadows, marshes, heath, beaches and bars, and arctic and alpine tundra.
James Bolton was an English naturalist, botanist, mycologist, and illustrator.
Polystichum lonchitis is a species of fern known by the common name northern hollyfern, or simply holly-fern. It is native to much of the Northern Hemisphere from Eurasia to Alaska to Greenland and south into mountainous central North America. It has stiff, glossy green, erect fronds and grows in moist, shady, rocky mountain habitats.
Digitalis ferruginea, the rusty foxglove, is a species of flowering plant in the genus Digitalis of the family Plantaginaceae. It is native to Hungary, Romania, Turkey and the Caucasus. It is a biennial or short-lived perennial plant growing to 1.2 m, which forms a rosette of oblong dark green leaves and carries spikes of brown, tubular flowers in summer.
Bartsia alpina is a species of perennial flowering plant, known by the common name alpine bartsia or velvetbells. It is found in the mountainous regions of Europe and also occurs in Iceland, Greenland and north‐eastern Canada.
Woodsia neomexicana, the New Mexican cliff fern, is a fern species native to the Southwestern United States and northern Mexico.
Dryopteris fragrans, commonly known as the fragrant fern, a circumboreal fern found worldwide, is the smallest of the Dryopteris species. It can resemble Woodsia ilvensis in the wild, with which it shares the same habitat of rocky areas, shady cliffs, screes, and limestone talus.. It typically will not reach more than 25 cm in height, and accumulates dead fronds around its base.