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Showing posts with label Orchid. Show all posts
Showing posts with label Orchid. Show all posts

Thursday, 23 June 2016

Common Orchid at Cirencester Golf Club - Cotswolds.


Beautiful Common Orchid at Cirencester Golf Club - 

On the Wild Flower Area 


Dactylorhiza fuchsii, the common spotted orchid, is a common species of orchid. It is widespread across much of Europe, with the range extending eastward into SiberiaMongolia and Xinjiang. The species is also reportedly naturalised in the Canadian Province ofOntario.[1][2][3][4][5][6]
Dactylorhiza fuchsii is widely variable in colour and height, ranging from 15 to 60 cm in height. The dense and rich-flowered inflorescence (flower spike), produced in June–August, is at first conical then cylindrical. The flower colour can vary from white to pale purple with purple spots, a symmetrical pattern of dark purple loops or dots and dashes. The lip has three lobes. The bracts are usually shorter than the flower. The lip is smaller than that of the very similar Dactylorhiza maculata and has three deeper cuts. The middle lobe is more than half as large as a lateral lobe. Some colonies are highly perfumed, attractive to day-flying moths. The leaves are narrow lanceolate, keeled and often dark-spotted.

Identification[edit]


Distribution and habitat
[edit]The orchids that are most similar belong to the Dactylorhiza maculata group. D. maculata ssp. maculata is distinguished by having the lip less deeply trilobed, while D. maculata subsp. saccifera has one spur large and saccular (sac-shaped) and the bracts of the inflorescence as long as or longer than the flowers. Outside of the "maculata group", D. majalis is very similar to D. fuchsii, but is distinguished by the following characters: the spots of the leaves are less elongated, the bracts of the inflorescence are longer and the lower transcend the inflorescence itself; it tends to be less cylindrical (a little more 'globular'), the stem is hollow (not solid) and the leaves are slightly larger. Other similar orchids are D. incarnata and D. lapponica. These stand out as the habitat is quite different (fens and bogs) and in any case the stem is hollow.
D. fuchsii is a Eurosiberian species occurring over Europe from Ireland in the west eastwards to Mongolia, the Altai Mountains and across northern Asia.[7] It is sympatric with D. maculata.
Typical habitats are, variously across the range, conifer, beech and chestnut forests, moderately wet meadows, bogs and margins of streams. The preferred substrate is supposedly calcareous although it seems not to be particularly linked to this type of substrate. In mountain, subalpine and alpine ecosystems D. fuchsii is found from 900 to 2300 m above sea level. Elsewhere it is found from sea level.
The full list of areas (World Geographical Scheme for Recording Plant Distributions) for D. fuchsii is Finland, Great Britain, Iceland, Ireland, Norway, Sweden, Austria, Belgium, Czechoslovakia, Germany, Hungary, Netherlands, Poland, Switzerland, Corse, Italy. Romania, Yugoslavia, Belarus, Baltic States, Central European Russia, East European Russia, North European Russia, South European Russia, Northwest European Russia, Ukraine, AltayBuryatiyaChitaIrkutskKrasnoyarskTuvaWest SiberiaYakutiyaXinjiang, Mongolia.
In Italy it is found mainly in the Alps in the northern Apennines. In Britain it is widespread, the most common orchid, occurring from alkaline marshes to chalk downland. After the bee orchid, Ophrys apifera, it is the most successful orchid coloniser of waste land.

Taxonomy[edit]

This plant belongs to a problematic group of orchids. D. fuchsii is very variable in flower colour and flower morphology, plant height and the scent of flowers. This is due to the ease of introgression (the transfer of genetic material from one sympatric species to another, only partially isolated from the first, through interspecific hybridization and repeated backcrossing to a parental species), the ability of these plants to adapt quickly and easily to habitat and different substrates and possibly other causes. As a result, a multitude of forms have been defined for this plant. The World Checklist of Kew Gardens lists over 25 varieties, of which 7 are recognized as valid.[7]


Dactylorhiza fuchsii
 subsp. carpatica (Batoušek & Kreutz) Kreutz  SlovakiaSubspecies
[edit]

  • Dactylorhiza fuchsii subsp. fuchsii (widespread from Spain and Ireland to Siberia and Mongolia)
  • Dactylorhiza fuchsii subsp. hebridensis (Wilmott) Soó – British Isles
  • Dactylorhiza fuchsii subsp. okellyi (Druce) Soó – British Isles
  • Dactylorhiza fuchsii subsp. psychrophila (Schltr.) Holub – northern and central Europe to Western Siberia
  • Dactylorhiza fuchsii subsp. sooiana (Borsos) Borsos – Slovakia, Hungary

Hybrids[edit]

Hybrids with other species of the same genus are frequent. These include:
This plant hybridizes easily with species of different genera (intergeneric hybridization). The list below shows some of these intergeneric hybrids (these hybrids are not always recognized by all botanists):

Etymology[edit]

The specific name honours the German scholar Leonhart Fuchs. 

Monday, 13 June 2016

Bee Orchid on Cirencester Golf Course

Fantastic Bee Orchid on the Course Meadow Area



Cirencester Golf Club -
The meadow rough areas on the course are set aside with the aim to look after the naturally occurring wild Cotwold plants and flowers

Etymology[edit]

The name "Ophrys" derives from the Greek word ophrys, meaning "eyebrow", while the Latin specific epithet apifera means "bee-bearing" or "bee-bringing"[1] and refers to the bee-shaped lip of the orchid.

Description[edit]

Ophrys apifera grows to a height of 15–50 centimetres (6–20 in). This hardy orchid develops small rosettes of leaves in autumn. They continue to grow slowly during winter. Basal leaves are ovate or oblong-lanceolate, upper leaves and bracts are ovate-lanceolate and sheathing. The plant blooms from mid-April to July producing a spike composed from one to twelve flowers. The flowers have large sepals, with a central green rib and their colour varies from white to pink, while petals are short, pubescent, yellow to greenish. The labellum is trilobed, with two pronounced humps on the hairy lateral lobes, the median lobe is hairy and similar to the abdomen of a bee. It is quite variable in the pattern of coloration, but usually brownish-red with yellow markings. The gynostegium is at right angles, with an elongated apex.

Color chemistry[edit]

Floral parts display the presence of quercetin and kaempferol glycosides, which are supposed to be acylated, as well as cinnamic acid derivatives. The pink outer tepals show the presence of anthocyanins.[2][3]

Reproduction[edit]

Ophrys apifera is the only species of the genus Ophrys which preferentially practices self-pollination. The flowers are almost exclusively self-pollinating in the northern ranges of the plant's distribution, but pollination by the solitary bee Eucera occurs in the Mediterranean area. In this case the plant attracts these insects by producing a scent that mimics the scent of the female bee. In addition, the lip acts as a decoy as the male bee confuses it with a female. Pollen transfer occurs during the ensuing pseudocopulation.[4]
The flowers emit allomones that attract the bee species Tetralonia cressa and Eucera pulveraceaeEucera longicornis males have been observed attempting to copulate with the flowers.[5] It is also believed that male bees would preferentially select orchids with the most bee-like lips and attempt to mate with them, transferring pollen in the process.[6]

Distribution[edit]

Ophrys apifera is a widespread across central and southern Europe, as well as North Africa and the Middle East. Its range stretches from PortugalIreland and Denmark east toIran and the Caucasus. It is quite common in the Mediterranean region eastwards to the Black Sea,[7] (Codes) [8] but is less common in its northern range being uncommon or local in Germany and Ireland.
In the UK, it has a distinct southeastern preference, being more common in England. Recently it has been found in the southwest of England in Butleigh near Glastonbury inSomerset; whereas it is only to be found in coastal regions of Wales as well as the Hodbarrow Nature Reserve in Millom, Cumbria,[9] and some parts of Northern Ireland. It is relatively common in the northeast of England and in recent years large numbers have appeared in the grass verges surrounding the Metro Centre in Gateshead.[10] In Scotland, it was thought to be extinct, but was rediscovered in Ayrshire in 2003. In some countries the plants have protected status. They are unusual in that in some years they appear in great numbers, then sometimes only reappear after an absence of many years.

Habitat[edit]

Ophrys apifera generally grows on semi-dry turf, in grassland, on limestone, calcareous dunes or in open areas in woodland. It prefers calcareous soils, in bright light or dim light.

Credit

https://en.wikipedia.org/wiki/Ophrys_apifera