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Posts by Donncha Ó Catháin

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Nature Trail: Can the Cottonweed be brought back from the brink of extinction? Cottonweed, a native plant, is one of the rarest wild flowers found growing in Ireland. It used to grow at five sites nationwide but is now confined to a single site on the south Wexford coast.

The valient efforts to rescue one of Ireland's rarest plants, hampered by the fact that no one is sure why it is being pushed out of it's traditional habitat

www.independent.ie/regionals/we...

3 months ago 29 9 0 0
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4/4 Super-sized heaths (Erica species), species of which in Ireland rarely grow above knee-height, form a canopy which you can walk beneath. Pictured here are Erica platycodon and Erica canariensis - both of which are Macaronesian endemic species

3 months ago 2 0 1 0
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3/4 There are also interesting links to the Irish flora. The Irish Spleenwort (Asplenium onopteris), a rare species in Ireland, is abundant in the laurisilva.

Tenerife (and other Macaronesian islands) are also a stronghold for the Killarney Fern (Vandenboschia speciosa)

3 months ago 3 0 1 0
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2/4 The humid conditions result in an abundance of ferns, mosses, and lichens. Pictured here are Canary Islands Wood Fern (Dryopteris oligodonta) and Hare's-foot Fern (Davallia canariensis)

3 months ago 2 0 1 0
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1/4 Photos from El Pijeral - 'The Enchanted Forest', Tenerife. Laurisilva forests in Canary Islands are ancient subtropical cloud forests formed in the Tertiary period. Sustained by trade-wind moisture they host many endemic species and relic biodiversity lost elsewhere in Europe

3 months ago 8 1 1 0

What an exciting find! Great for botanists that many #ferns can still be seen through the winter months 😄 ❄️🧤🌿 #uplandplants @donncha-oc.bsky.social @ollysflora123.bsky.social @phoebeobrien.bsky.social @npwsireland.bsky.social @cedar-ni.bsky.social @irishwoodlandtrust.bsky.social

3 months ago 10 2 0 0
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Reflection of pines on a small upland lough. Maghera, Co. Clare.

5 months ago 7 2 0 0
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*generally (not greatly)

5 months ago 1 0 0 0
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Some more nice records from the day's botanising in Slieve Aughty uplands. Brittle bladder fern (Cystoperis fragilis), Killarney fern gametophyte (Trichomanes specisosum), Hard shield fern (Polystichum aculeatum), and For clubmoss (Huperzia selago).

5 months ago 8 1 0 0
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Crowberry (Empetrum nigrum) in Slieve Aughty, Co. Clare. New hectad record for this species which is greatly quite rare in the county.

5 months ago 10 4 1 0
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Great to find a new site for Beech Fern (Phegopteris connectilis) in Co. Clare. The species is known to be extant at only two other places in Clare @bsbibotany.bsky.social @bsbiireland.bsky.social

5 months ago 33 6 1 0
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Nice afternoon of botanising in Sliabh Aughty, Co. Clare. Highlights - a new site for gametophyte of Killarney fern and 2nd county record for Polystichum x bicknellii (hybrid between P. aculeatum and P. setiferum) Need to confirm ID of latter but it seem to fit the description 🤞

6 months ago 12 4 0 0
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Wood-name townlands of Clonderlaw barony Co. Clare

Trees in the placenames are Oak (Doire/Derry); Alder (Fearnán/Fearnóg) & Holly (Cuileann)

In 1655 there were 1670 acres of wooded lands recorded consisting of

-Timber trees 701 a
-Young Wood 304 a
-Old Wood 361 a
-Shrubs 324 a

6 months ago 6 2 0 0

There's a definitely a learning curve with sedges (I'm still learning!) but it's rewarding when you start to recognize them in the field!
The BSBI handbook has v. good B&W line drawings that I find very useful. Good luck 🍀

10 months ago 1 0 0 0

Hi Margaret, I think there are two sedge species in your photos - possibly Carex nigra (only male flower in view showing yellowish anthers) & a species of Eleocharis (E. palustris maybe)

10 months ago 1 0 1 0
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Sedges from a base-rich mire in Co. Clare yesterday. (Carex panicea, C. viridula subsp oedocarpa, C. dioecia & C. diandra) #wildflowerhour

10 months ago 21 1 1 0
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Cranberry (Vaccinium oxycoccus) putting on a great display #wildflowerhour

10 months ago 24 1 0 0
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Early marsh orchid (Dactylorhiza incarnata subsp pulchella) in Co. Clare #wildflowerhour

10 months ago 27 3 0 0
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Cranberry (Vaccinium oxycoccus) #wildflowerhour

11 months ago 43 2 0 0
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Some interesting #lichens & #liverworts seen today in old woodland.

11 months ago 27 3 2 0

Lovely! some filmy-ferns in the last pic too 🍀

11 months ago 2 0 1 0
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The fresh leaves of the Fraochán (bilberry) brighten up the woods on a rainy evening. Co. Clare.

1 year ago 7 0 1 0
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A freshwater macroalga - Delicate Stonewort (Chara virgata) - from a mire habitat. Co. Clare.

1 year ago 6 0 0 0
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Glistening in the evening sun: two mosses, Bryum pseudotriquetrun & Campylium stellatum

1 year ago 3 0 0 0
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Marsh Violet (Viola palustris) #wildflowerhour

1 year ago 61 5 2 1
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Bogbean (Menyanthes trifoliata) #wildflowerhour

1 year ago 73 10 1 0
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Sphagnum in the limelight

1 year ago 5 1 0 0
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Nice to find the scarce Sphagnum teres in the base rich mire in east Co. Clare. It is classified as having 'Near Threatened' status in Ireland

1 year ago 5 1 0 0
Video

Lakes in Ireland - Mirrors of Change.

Available to download here: oar.marine.ie/handle/10793...

Edited by @cathdalt.bsky.social @ejen.bsky.social and @edeeyto.bsky.social with chapter contributions from 52 authors and sponsorship from state agencies & HEIs

Limited print copies available - DM me

1 year ago 27 10 1 0

Are you interested in the history, geography, biology and sociology of lakes in Ireland?
Take a look at our new book, with contributions from 52 people working in the area, and edited by @cathdalt.bsky.social and @ejen.bsky.social

#OpenAccess link below ⬇️⬇️⬇️💦🌊🐟🦆🦟🪲

1 year ago 27 9 0 0