Dean Mac Cú Uladh's Avatar

Dean Mac Cú Uladh

@dmac00.bsky.social

Botanist, bryologist and ecologist from SE Ulster. Tá Gaedhlig agam. Advocate of all things temperate rainforest, hoverflies and placenames newrywildlife.com

343 Followers  |  328 Following  |  110 Posts  |  Joined: 08.11.2024  |  2.4848

Latest posts by dmac00.bsky.social on Bluesky

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Some more habitat photos from Ness Country Park, Derry

Very impressed with this site and an unexpected hyper-humid microclimate. The Burntollet River was powerful

04.11.2025 10:33 — 👍 2    🔁 0    💬 0    📌 0
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First record of large leafy liverwort Bazzania trilobata for co Derry (H40) since 1834! Also growing alongside it was Hymenophyllum tunbrigense which is a new county site too.

Ness Country Park, Co. Derry.

@bsbiireland.bsky.social @bbsbryology.bsky.social

#bryophytes #ferns #botany

03.11.2025 20:18 — 👍 21    🔁 3    💬 0    📌 0

Tá sin againn agus Lycopodium clavatum i mBeanna Boirche ach ní fhaca mé ariamh iad, faraor!

28.10.2025 20:22 — 👍 1    🔁 0    💬 1    📌 0
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These fragments of hazel woodlands around South Armagh are common enough, and always severely overgrazed. I’ve noted several scarce species from them but they are entirely unprotected. The hilly topography and hard porphyritic granophyre are the only things keeping them alive.

28.10.2025 10:56 — 👍 9    🔁 1    💬 0    📌 0
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Donate to Cúnamh do Fionnuala, organized by Geroldine Gannon Dia dhaoibh, a chairde, Tá tús curtha againn leis an bhfeachtas bailithe airgid seo le grá agus… Geroldine Gannon needs your support for Cúnamh do Fionnuala

Not my usual post type but my friends sister is currently battling cancer, if you can afford to give at all or share. I appreciate there are so many good causes to give your money to at the moment but just in case. Duine álainn í agus maithir go triúr. Grma!

www.gofundme.com/f/cunamh-do-...

27.10.2025 10:42 — 👍 4    🔁 2    💬 0    📌 0

Thanks!

23.10.2025 11:29 — 👍 0    🔁 0    💬 0    📌 0
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Lovely lichens from Ards Forest Park, Donegal

Lobaria pulmonaria & Pannaria rubiginosa was locally abundant, even on young trees. Pyrenula macrospora was the dominant crustose lichen on ash

Other lichens included Pectenia atlantica, Lobarina scrobiculata & Ricasolia virens

#lichens #fungifriends

22.10.2025 17:37 — 👍 40    🔁 8    💬 2    📌 0
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March in Warrenpoint County Down today with Carlingford Lough Keepers demanding for clean fresh air and an end to industrial malpractice!

People and Planet before Profit!!

18.10.2025 16:40 — 👍 1    🔁 0    💬 0    📌 0

Iontach, tá neart caonach sin ag an Bhean Fhada i gCuaille ar an bhasalt

10.10.2025 15:50 — 👍 1    🔁 0    💬 0    📌 0

Class moss, stands out once you know it

10.10.2025 15:38 — 👍 1    🔁 0    💬 1    📌 0
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4th Irish record of Endoantria benetecta and 2nd for Co. Fermanagh (H33) - Sliabh Beatha region

Little fragments of temperate rainforest on border between east Fermanagh and south Tyrone along the Colebrook River

#bryophytes #fungifriends #ireland #temperaterainforest #woodland

08.10.2025 16:48 — 👍 9    🔁 0    💬 0    📌 0
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Moody blues over Loch Cairlinn today and a strong high tide. Made Rostrevor Oakwood extra atmospheric

07.10.2025 15:10 — 👍 0    🔁 0    💬 0    📌 0
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Storm Amy illustrated why the marshy lowlands of Abhainn Ghleann Rí to the north of Newry are floodplains!

I have spotted lapwing in the past along the towpath - now the fields are drained and electric green from slurry. The river and canal are eutrophic as a result. Nice to see corr éisc still.

06.10.2025 16:38 — 👍 2    🔁 0    💬 0    📌 0
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First record of tiny hyper-oceanic liverwort Drepanolejeunea hamatifolia for co. Cavan (VC H30) from Tullydermot Falls on Salix sp.

One of the oceanic liverworts appearing to increasing as an epiphyte

#Bryophytes #bryology #liverwort #temperaterainforest #Ireland #Cavan

30.09.2025 18:17 — 👍 9    🔁 0    💬 0    📌 0
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Cololejeunea microscopica frequent on willows and found the 3rd Irish record of Endoantria benetecta, and first for Co. Cavan. Pretty nice all round but highly fragmented woodland.

30.09.2025 08:27 — 👍 1    🔁 0    💬 0    📌 0
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Tullydermot Waterfall, West Cavan

A nice selection of rainforest species at this modest waterfall just south of Cuilcagh. Fragments of woodland cling on to the banks of the CLADAGH River.

Plagiochila spinulosa and Protopannaria pezizoides were welcome finds.

#bryophyte #lichen #ireland

30.09.2025 08:27 — 👍 3    🔁 0    💬 1    📌 0
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Some more oceanic plants from Glenariff Forest

- Harpalejeunea molleri
- Hymenophyllum wilsonii
- Jubula hutchinsiae
- Plagiochila bifaria

Really nice assortment of bryophytes

#bryophyte #ireland

25.09.2025 08:16 — 👍 6    🔁 0    💬 0    📌 0
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First record of Daltonia splachnoides for co. Antrim (VC H39) and the most NE Irish record so far. Closest known site (my record from Monaghan the other week) is 100km SW of here.

Found on a willow in Glenariff Forest. Very happy.

#bryophytes #moss #temperaterainforest #botany #ireland

24.09.2025 18:36 — 👍 1    🔁 0    💬 0    📌 0
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New site for Daltonia splachnoides from Co. Fermanagh (VC H33) at Poll na gColm in the southwest of the county. Plus an obligatory picture of Trichocolea tomentella. Finished the day off with a trip to the Magho cliffs with a stunning view of lower Loch Erne towards south Donegal.

23.09.2025 20:56 — 👍 3    🔁 0    💬 0    📌 0
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Agóid Náisiúnta na nGael i mBaile Áth Cliath inné

Tionól iontach mór ann agus bus lán go béal ón dheisceart an Dúin!

#cearta #mórshiúl #agóid #dearglefearg #gael #gaeilge

21.09.2025 12:51 — 👍 2    🔁 1    💬 0    📌 0
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First record of oceanic liverwort Plagiochila bifaria for co. Armagh (VC H37) from near St Moninna’s Well, Sliabh gCuillinn

Hanging out above a rock face with a small waterfall below some rowans. Associates included Metzgeria conjugata.

#bryophytes #bryology #ireland #liverwort

18.09.2025 20:34 — 👍 3    🔁 1    💬 0    📌 0
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Said temperate rainforest cryptogams:

- Pyrenula chlorospila/macrospora with insurgence of Graphina ruiziana (1st Louth record)
- Hyocomium armoricum
- Peltigera horizontalis
- Jubula hutchinsiae

14.09.2025 09:50 — 👍 4    🔁 0    💬 0    📌 0
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Some lovely tree-scapes from Ravensdale Forest, Cooley, Co. Louth.

A very unnatural woodland but there are some lovely patches of native trees and temperate rainforest cryptogam biodiversity - but could do with serious ecological restoration.

#woodland #ireland #temperaterainforest

14.09.2025 09:46 — 👍 3    🔁 0    💬 1    📌 0
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Also found first Monaghan record of Drepanolejeunea hamatifolia and plenty of it too

11.09.2025 21:56 — 👍 0    🔁 0    💬 0    📌 0
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Very pleased to have found Daltonia splachnoides from Poll an Aifrinn, the 1st record for co. Monaghan

I have been wanting to see this species for a while. Very typical Irish habitat of willow thickets in an upland plantation. Associated included Colura calyptrifolia & Lejeunea patens

#bryophytes

11.09.2025 21:43 — 👍 3    🔁 2    💬 1    📌 0

2nd Irish record of this fungus this time from Altadaven Wood in south Tyrone - awful photos included

Very pleased

07.09.2025 10:16 — 👍 0    🔁 0    💬 0    📌 0

Yeh there are some lovely ones. The ash aren’t in great nick but definitely some nice bits of woodland there

06.09.2025 17:04 — 👍 1    🔁 0    💬 0    📌 0
A holly clad in mosses and ferns within a woodland

A holly clad in mosses and ferns within a woodland

A lichen called Peltigera collina growing on a mossy trunk

A lichen called Peltigera collina growing on a mossy trunk

Liverworts Plagiochila spinulosa growing on a tree trunk

Liverworts Plagiochila spinulosa growing on a tree trunk

Close-up of Liverwort Pseudomarsupidium decipiens

Close-up of Liverwort Pseudomarsupidium decipiens

Altadaven Wood, east Tyrone

I was so pleasantly surprised at the variety of temperate rainforest cryptogams here. Several new regional and a few county firsts. Some intact ancient oak woodland clings on but it is mostly a larch plantation.

Pseudomarsupidium decipiens was the find of the day!

06.09.2025 16:37 — 👍 5    🔁 0    💬 0    📌 0
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Some old oaks in the rain

Dearclaigh Forest

27.08.2025 18:55 — 👍 4    🔁 0    💬 1    📌 0
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Bog Bothy at Girley Bog, Co. Meath

A great series of events for Heritage Week and we had the weather for it too.

@irisharchitecturef.bsky.social

18.08.2025 13:20 — 👍 3    🔁 1    💬 0    📌 0

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