Anacamptis pyramidalis

Anacamptis pyramidalis
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Genus: Anacamptis
Species: A. pyramidalis
Binomial name
Anacamptis pyramidalis
(L.) Rich.
Synonyms
  • Anacamptis condensata Koch
  • Orchis appendiculata Stokes
  • Orchis bicornis Gilib.
  • Orchis condensata Desf.

Anacamptis pyramidalis, the pyramidal orchid,[1] is a perennial herbaceous plant belonging to the genus Anacamptis of the family Orchidaceae. The scientific name Anacamptis derives from Greek ανακάμτειν 'anakamptein' meaning 'bend forward', while the Latin name pyramidalis refers to the pyramidal form of the inflorescence.

Description

Charles Darwin's book Fertilisation of Orchids included an illustration of the head of a moth with its proboscis laden with several pairs of pollinia from Orchis pyramidalis

This hardy plant reaches on average 10–25 centimetres (3.9–9.8 in) of height, with a maximum of 60 centimetres (24 in). The stem is erect and unbranched. The basal leaves are linear-lanceolate with parallel venation, up to 25 centimetres (9.8 in) long, the cauline ones are shorter and barely visible on the stem. The arrangement of hermaphroditic flowers in a compact pyramidal shape is very distinctive and gives the orchid its common name. The colour of the flower varies from pink to purple, or rarely white, and the scent is described as "foxy". The flowers have six tepals, being three small sepals and three petals. Two small petals are on the sides, while the third and lower (labellum) is large and trilobate. At the back of the flower there is a tubular spur of about 1.5 centimetres (0.59 in) long, while the labellum bears two lateral small flaps. The flowering period extends from April through July.

Reproduction

The flowers are pollinated by butterflies and moths. To ensure the fertilization, their morphology is well adapted to the proboscis of Lepidoptera, especially Euphydryas, Melanargia, Melitaea, Pieris and Zygaena species. The mechanism by which its pairs of pollinia attach themselves to an insect's proboscis was discovered by Charles Darwin and described in his book on the Fertilisation of Orchids.[2]

Distribution

This orchid is native to southwestern Eurasia, from western Europe through the Mediterranean region eastwards to Iran. In Germany, it is rare and was declared Orchid of the Year in 1990 to heighten awareness of this plant. This orchid is especially common on the Isle of Wight in the South of England, and was designated the county plant in 2008. On the Isle of Wight, it favours growth in chalky or sandstone-rich soil, and thus can easily be found on the Downland and cliffs to the west and south of the island.

Habitat

Anacamptis pyramidalis requires a sunny spot on diverse soils: loamy or clay. It can even grow on very alkaline soil. It can be found on meadows or dry and well exposed slopes, at an altitude of 0–2,000 metres (0–6,562 ft) above sea level.

Gallery

Inflorescences of Anacamptis pyramidalis
Plants of Anacamptis pyramidalis
Inflorescences of Anacamptis pyramidalis
Close-up on inflorescence of Anacamptis pyramidalis
Close-up on a flower of Anacamptis pyramidalis
Leaf of Anacamptis pyramidalis

Varieties

There are some notable varieties, which are sometimes treated as subspecies – and as they seem to be limited to certain regions, this may be correct:

The variety alba can be found anywhere in the Pyramidal Orchid's range; its flowers are white.

Medicinal uses

The dried and ground tuber gives a fine white powder, called salep. This is a very nutritious sweet starchlike substance. It is used in drinks, cereals and in making bread. It is also used medicinally in diets for children and convalescents.

Culture

The pyramidal orchid was voted the County flower of the Isle of Wight in 2002 following a poll by the wild flora conservation charity Plantlife.[3]

References

  1. ↑ "BSBI List 2007" (xls). Botanical Society of Britain and Ireland. Archived from the original on 2015-02-25. Retrieved 2014-10-17.
  2. ↑ Darwin 1862, pp. 20–24, 37
  3. ↑ Plantlife website County Flowers page

External links

This article is issued from Wikipedia - version of the 10/12/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.