Donncha Ó Catháin
donncha-oc.bsky.social
Donncha Ó Catháin
@donncha-oc.bsky.social
Reposted by Donncha Ó Catháin
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...
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.
www.independent.ie
January 11, 2026 at 10:43 AM
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
January 8, 2026 at 1:11 AM
Reposted by Donncha Ó Catháin
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
New site record of Hymenophyllum tunbrigense for Co. Louth (H31) growing in a rocky woodland on a minor hill. Happy to find this one today. A very scarce species in the county.

@bsbiireland.bsky.social
@bsbibotany.bsky.social

#ferns #botany #filmyferns
December 31, 2025 at 4:35 PM
Reflection of pines on a small upland lough. Maghera, Co. Clare.
November 9, 2025 at 7:55 PM
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).
November 9, 2025 at 7:44 PM
Crowberry (Empetrum nigrum) in Slieve Aughty, Co. Clare. New hectad record for this species which is greatly quite rare in the county.
November 9, 2025 at 7:37 PM
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
November 9, 2025 at 7:32 PM
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 🤞
October 12, 2025 at 6:57 PM
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
October 11, 2025 at 10:06 PM
Sedges from a base-rich mire in Co. Clare yesterday. (Carex panicea, C. viridula subsp oedocarpa, C. dioecia & C. diandra) #wildflowerhour
May 25, 2025 at 7:44 PM
Cranberry (Vaccinium oxycoccus) putting on a great display #wildflowerhour
May 25, 2025 at 7:34 PM
Early marsh orchid (Dactylorhiza incarnata subsp pulchella) in Co. Clare #wildflowerhour
May 25, 2025 at 7:31 PM
Cranberry (Vaccinium oxycoccus) #wildflowerhour
April 27, 2025 at 7:48 PM
Reposted by Donncha Ó Catháin
Some interesting #lichens & #liverworts seen today in old woodland.
April 24, 2025 at 6:26 PM
The fresh leaves of the Fraochán (bilberry) brighten up the woods on a rainy evening. Co. Clare.
April 18, 2025 at 8:40 PM
A freshwater macroalga - Delicate Stonewort (Chara virgata) - from a mire habitat. Co. Clare.
April 14, 2025 at 6:39 PM
Glistening in the evening sun: two mosses, Bryum pseudotriquetrun & Campylium stellatum
April 13, 2025 at 8:34 PM
Marsh Violet (Viola palustris) #wildflowerhour
April 13, 2025 at 7:49 PM
Bogbean (Menyanthes trifoliata) #wildflowerhour
April 13, 2025 at 7:48 PM
Sphagnum in the limelight
April 6, 2025 at 8:38 AM
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
April 5, 2025 at 9:00 PM
Reposted by Donncha Ó Catháin
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
December 11, 2024 at 11:44 AM
Reposted by Donncha Ó Catháin
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 ⬇️⬇️⬇️💦🌊🐟🦆🦟🪲
December 3, 2024 at 11:27 AM
Derrygarve Lake near Connolly, Co. Clare today.
November 22, 2024 at 11:38 PM
Reposted by Donncha Ó Catháin
Argyll's atlantic woodlands were bursting with life last week including the wonderfully named:

Hazel Gloves (Hypocreopsis rhododendri)

Frilly-fruited Jelly Lichen (Leptogium burgessii)

Yellow Specklebelly (Pseudocyphellaria citrina)

Deceptive Featherwort (Pseudomarsupidium decipiens)
November 17, 2024 at 5:02 PM