Spiranthes romanzoffiana
Irish Lady’s Tresses
2019 COUNT
ENLARGE
(marked Images)
L E G E N D
Total number of specimens seen and recorded. An RGB marking system has been used with Red Pins being used for the start of the season and
Blue Pins for the end of the season. Efforts have been made to avoid duplication by eliminating subsequent records that are ‘too’ close to original
records. However, most records are for different plants as it is often up to 3 weeks between visits and any new plants will be conspicuously fresh
and may be slightly different in their place on the shore. We suspect that the later plants may be from older roots and the early plants may be first
year plants?
L O C A T I O N S:
A: Drummin Bay Lough Cullin
Running from Car Park 1 (nearest to Foxford) to south
side of Pontoon Bridge.
Numbers = 199
Observations
Drummin Bay is a peaceful site with the usual good
numbers and good growing conditions until c. August
25th. Further west towards Pontoon Bridge we were
pleased to record very good numbers in a site that is
persistently grazed by cattle or a small numbers of
horses.
B: Massbrook Harbour and Terrybaun
shoreline.
Running from the busy angling base with many boats to
Terrybaun and the south shore of L. Conn to Pontoon
Numbers = 102
Observations
The Massbrook shoreline produced its usual good
numbers of of specimens along most of its length. Most
specimens were found before the area flattened some
years previously but this area is now looking promising
perhaps for future colonisation. East of that ‘new
territory’ as far as Terrybaun produced good numbers
mostly in sandy/grassy patches along the otherwise
stony shore. This new location added 46 records to our
yearly total.
C: Lower West Shore of L. Conn.
A continuous stretch of shore from Massbrook
northwards to Addergoole Cemetery.
Numbers = 185
Observations
This is the area that produced striking evidence of a
North American source of this rare member of Ireland’s
flora. It contains many Spiranthes in two sections with
the middle part now bare of specimens due to shore
scrub clearance. An exciting area with often dense groups of orchids and a wide range of niches along a bouldery shore with the plants sometimes
occurring in sandy areas at low water and other specimens found in the back shore among bushes and larger boulders. The lower shore plants
(2017) were dispersed in a continuous line reflecting the shape of the shore. Unfortunately many of those seedlings have not re-appeared but the
larger plants have survived.
D: The Lagoon and surrounding pasture, north L. Conn.
A small lagoon on a large bay between Crossmolina and the Deel River.
Numbers = 114
Observations
A site we discovered in 2015 which has always yielded good numbers or orchids alongside the small meandering streams draining the flooded
area but also in among taller grasses and bushes. This year, for the first time, cattle had broken in and done considerable damage. But we suspect
that this was despite the farmers best efforts to protect the area over many years; the cattle had travelled a long route to feast on these orchids!
This area could make a good conservation zone as it is unowned, of little use for farming, and brilliant for S. romanzoffiana.
E: Inlet south of Knockmore, east shore of L. Conn.
A small inlet south of …. was the only area producing records on the east shore.
Numbers = 16
Observations
An old site used for some genetic research on this species by the Botanic Gardens. For many years it has produced few records and this years
numbers were the best we have every seen. All records are from sandy shore, or grazing areas near the shore ,or in shallow water among reeds.
An exposed shoreline north of the inlet looks ideal for the species but we have never found any there; we suspect it is just too rocky with many big
boulders and not enough sand or suitable binding between them. i.e. it was difficult to walk on, hence no Spiranthes!
O V E R V I E W: 616 Spiranthes romanzoffiana recorded in North Mayo
Numbers this year were on a par with last year but these numbers included different locations, like the Terrybaun specimens shown RIGHT. By
now we can confidently say most of L. Conn — apart from its Islands — has been well surveyed. The established sites of Drummin Bay/Car Park,
Massbrook shore, the West shore and The Lagoon are still doing well but suffering with the weather.
The main gap on the above map is the long convoluted East Shore of L. Conn. There are undoubtedly some orchids here but the large colonies
found here 5 years ago are a thing of the past. Significantly the East Shore is different from the West Shore, mainly in regard to land use and
development. In previous shores Cattle and Horses were kept off the shore now they are widespread and the rare orchid has gone. Farming is
under pressure to maintain its beef industry. Maybe there are ways the agricultural economy and the conservation agenda can work hand in
hand; we certainly would have the data to inform such new thinking and new land use policies.
The only similarly damaged area on the west shore is a small area north of the Lower West Shore where scrub clearing has removed many plants.
Terrybaun Beauty…
This is the race horse of Irish Lady’s Tresses. In fact it’s a Derby with 4 of
them in the group! One of our best sightings for the year! A new territory
in a very isolated and inaccessible area of south L. Conn between
Massbrook Bay and the perilous cliffs of coarse grained Granodiorite
guarding the outflow of the lake south to L. Cullin.
It was a sense of completion that lead us there. It is a changing landscape
moving from gently sloping shore of every increasing boulder size to
eventually sharp fault defined cliffs dropping straight into the water — an
unusual feature around the coast of L. Conn. Reported on on The Log for
23rd of August…
It is unusual to see 4 such perfect flowers so tightly clustered
together. This picture is reminiscent of images one sees from North
America. But it was one of a small number of occurrences on this
somewhat barren southern shore. Of course, none occurred on the
cliffs — they had their own flora — but they were present in medium
sized groups where the shore was flatter, sandier and grassier.
Conclusion, Conservation and New Plans
For details of trips, days, records mainly from L. Conn and L. Cullin go to our
Spiranthes2019 Log Page where you will find detailed accounts of many trips over a 3
month period with many photographs and observations.
This Page shows:
•
Numbers and Distribution Map
•
Terrybaun Beauty (a special set of these Orchids)
•
Comments and ideas for Conservation of this species in
the West.
GoTO:
www.wildwest.ie/logspiranthes2019.html
We have had to divide this page, reluctantly, pending sorting out some technical problems.
But it may advantageous to have the field work and the analysis kept separate — one is
factual, the other is theory and dependent on much effort and commitment to make it
come true. Bit it would be nice to see The Two Lakes hosting the greatest collection of
Spiranthes romanzoffiana in Europe!
Final Report on this species in West Mayo for 2019