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Thursday, 25 March 2021

Greater Tongue Orchid (Serapias lingua L.)

 

Greater Tongue Orchid (Serapias lingua L.)

Etymology

Serapias = after the Greco-Egyptian god of the sun, Serapis.
lingua  = tongue

First Recognised in Britain and Ireland

2017 J Pickering.   Found during a survey near Tiptree, Essex.   This is the species' only extant location in Britain and Ireland.

The Plant

Habitat


                                 Tiptree, Essex 26.5.18 (IMG 7022) 

 
                               Tiptree, Essex 26.5.18 (IMG 7011)       

Whole Plant                                    


           
                                    Tiptree, Essex 26.5.18 (IMG 7013)                 


Inflorescence

              
 
                                          Tiptree, Essex 26.5.18 (IMG 7016)


Flower

                     
                                               Tiptree, Essex 26.5.18 (IMG 6996)                                                                                                  
Description

Stems to 40 cm.  Sepals 15 - 21mm. (Stace).

Leaves

Linear lanceolate.

Leaf Edge

No details.


Roots

No details

Seeds

No details

Seed Pods

No details

Habitat

Basic to acid soils in meadows, garigue and grasslands; in open spaces in woods and maquis. The UK site is an unimproved meadow which at one time was a strawberry field.

Mychorrhiza

No data.

Pollination

No details from Britain.  In Europe, small carpenter bees (Ceratina sp) and sand wasps (Gorytes sp)  have been noted as pollinators, though it seems unlikely that pollination is restricted to these species.   In 3 European studies the fruit set ranged from 24 to 64%, with a median of 44% (Claessens and Kleynen). A deceptive orchid, probably attracting insects by scent.

Flowering time

There is only 1 record in the BSBI database showing a date of flowering of 28 June.  My visit was on 26 May when the orchids were in full flower.  


Distribution in Britain and Ireland

 
    BSBI Records 2000-20 (ignoring an introduction at Wakehurst Place)

Found in only 1 vice county, Essex, VC19  and in just 1 monad.   There was a single record from Devon VC3 in 1998, but has not been recorded there since.   There is also a record from Kew's Wakehurst Place, but it is difficult to accept that this as a wild location.

Distribution Worldwide

W. France, Iberia and Mediterranean including Morocco east to Greece (Kuhn).   It is a puzzle as to why it has turned up in Essex.  Deliberate introduction can probably, but not definitely be ruled out.  It could have arrived as wind blown seed, 'Sahara dust', though in Morocco it is only found in the Mediterranean littoral. My own theory relying on two unproven assumptions is that it arrived from Spain. The colony in Essex has at least 30 to 40 plants, and it is well established, suggesting it has been there for some time, so that it might have been there since the days when this was a strawberry field.   I think I am right in saying that  strawberry nursery plants were and still are regularly imported from Spain, and seed of the orchid might have come with those imports.

Hybrids and Recognised Varieties

Hybrids are known in Europe with other Serapias species

References


Claessens and Kleynen: Flower of the European Orchid -Claessens J and Kleynen J  2011
Kuhn: Orchids of Europe and the Mediterranean - Kuhn R, Pedersen H A, Cribb P, 2019.
Stace:  New Flora off the British Isles - Stace C 4th Edn, 2019

Updated 3.2021

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