Friday, November 27, 2020

Botany in Brecknock, the story continues

We haven't been idle and this is the story from May to September. 

Our informal Brecknock Botany group carried on investigating their local flora individually all through to late June when we very tentatively started to go out in small, socially distanced groups. 

But before this… Working close to home with regular patrolling of the same routes soon paid dividends – I did not know Viola reichenbachiana (Early Dog-violet) was only 100 m from my home until this year. 

Viola reichenbachiana (Early Dog-violet or Fioled y coed) Forest Road, Hay

In late April I received reports of an abundance of Orchis mascula (Early-purple Orchid) just above Brecon well within several people’s exercise walking distance. I must say I had never myself encountered this plant growing like this. 
Early-purple Orchid, Tegeirian coch y gwanwyn or Orchis mascula (picture: Kieth Noble)
In May Joan noticed Plantago coronopus (Buck’s-horn Plantain) in the main Brecon car park. This had been new to the county up on the Epynt early in 2015.
Buck's-horn Plantain, Llyriad corn carw or Plantago coronopus (picture: Joan Millard)
An Allium triquetrum candidate at Joan’s local churchyard at Llandefalle turned out to be Allium trifoliatum (Hirsute Garlic) on more careful examination / discussion online – proving, I hope, that we were not cutting any corners by working remotely. Paul Green was able to confirm remotely as referee and this is a new Wales record.
Hirsute Garlic, Garlleg cedenog or Allium trifoliatum (picture: Joan Millard)
A walk along the Wye looking for early signs of the Persicaria mitis (Tasteless Water-pepper) found last year revealed a small population of Scirpus sylvaticus (Wood Club-rush) right by the water. It was last seen in about the same area in 1979 and is not at all commonly recorded in our county.
Wood Club-rush, Clwbfrwynen bengron or Scirpus sylvaticus by the Wye in Hay
An exploration of Waun Ddu raised bog (at Craig y Cilau above Llangattock) by two of us resulted in several good records including Carex montana (Soft-leaved Sedge) and Eleocharis quinqueflora (Few-flowered Spike-rush). A week later, Anne finally found Hornungia petraea (Hutchinsia) on the cliffs above (a personal quest) - in dead form but still unmistakeable.

Hutchinsia, Beryn y graig or Hornungia petraea (picture: Anne Griffiths)
"It's dead, Jim"

I had noticed records for Gymnadenia conopsea (Fragrant Orchid), Platanthera chlorantha (Greater Butterfly-orchid) and Epipactis palustris (Marsh Helleborine) in 2015 near Brecon from an unknown name but confirmed by an eminent botanist. So, getting a request to go and visit from the landowner was welcome. I went as soon as I could to find a delightful wet meadow that the owners had left on minimal grazing since acquiring the property. Not only were there the Orchids (recorded in a Kew scheme “Orchid Observers” that asked for photographic submission) but there was Eriophorum latifolium (Broad-leaved Cotton-grass) as well as a host of other Brecknock Axiophytes. Even better, I was told that a neighbouring farm, had a small amount of Genista tinctoria (Dyer’s Greenweed) which had not been recorded in a long time in the area. Again a visit was most rewarding and benign neglect was the regime – this time the owner, who walked me through his fields to the wet site, apologised for the Yellow-rattle not being native – it turned out he had spread hay from a nearby farm he had worked on several years back thus introducing it in what I would say is an entirely natural way… This farm also had Epipactis palustris (Marsh Helleborine) and Eriophorum latifolium (Broad-leaved Cottongrass) as well as abundant Cirsium dissectum (Meadow Thistle). 

Marsh Helleborine, Caldrist y gors or Epipactis palustris near Libanus
I was able to find the roadside Epipactis palustris between Brecon and Hay on the way home – it had had a few fallow years but was back.
I was delighted that Tim Rich re-found our Orthilia secunda (Serrated Wintergreen) population complete with fruiting stems up on the top cliffs of Craig Cerrig-gleisiad. I was shown it by intrepid wardens in 2013 and Mike Porter had climbed down to it in the 1970s more than once with Ray Woods providing the confirmation for the 1980s. Not many of us have seen it close up since Beverly A Miles first recorded it in 1955.

Tim with Serrated Wintergreen, Glesyn-y-gaeaf danheddog or Orthilia secunda up on the Craig Cerrig-gleisiad cliffs.
Botany group member Anne likes to explore limestone near where she lives in Monmouthshire and found Erigeron acris (Blue Fleabane), initially in Monmouthshire Vice County (where they have lots) and later our side near Gilwern in first records for some time.
Blue Fleabane, Amrhydlwyd glas or Erigeron acris (which was Erigeron acer) (Picture: Anne Griffiths)
Undoubtedly the most exciting record of the year was Pyrola minor (Common Wintergreen) – possibly recorded our side of the border in 1911 but just as likely not. It gets close to us in Glamorganshire, but Arlene found it very definitely in the county at Abercraf and, it later transpired, in quite large numbers and area of distribution. The site is subject to development, but we were able to confirm a large and extensive population. (There are plans to relocate affected sensitive plants.) 
Common Wintergreen, Glesyn-y-gaeaf bach or Pyrola minor
A bryological exploration by Claire resulted in new records of Sagina nodosa (Knotted Pearlwort) and Lycopodium clavatum (Stag's-horn Clubmoss) in Cwm Callan . The Pearlwort was only the third record since 2000 in the county.

Knotted Pearlwort, Corwlyddyn clymog or Sagina nodosa (photographed several years ago)

Finally, Tim Rich has been updating records of our endemic and rare Hieraciums with some in decline and others doing well. See his videos on You Tube.

While doing this, Tim reported a single plant high up on Tarren yr Esgob (cliffs above Capel y Ffin) of Rosa spinosissima (Burnet Rose). This was  a first record for a very long time for the county.

Burnet Rose, Rhosyn bwrned or Rosa spinosissima (was known as Rosa pimpinellifolia). (Photographed on the Burren in 2005 - I haven't seen it in Brecknock!)

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