Llanelli Naturalists Newsletter - December 1983
Leader Dr. P.A. Jones
Cwm Mawr was followed upstream from the Farrier’s Arms (SN487020)
Having had fairly good weather all week it was bound to rain. For the past two years the foray had to be abandoned due to torrential rain but fortunately on this occasion the rain lessened by the start of the meeting. A few enthusiasts turned up, including a couple from Swansea.
The main purpose of such a foray is to find representative examples of various groups and an attempt made to point out important features.
A good collection was made particularly at the start of the walk. It took nearly an hour to walk the first 50 yards into the wood! Fifty-two species were recorded.
A list of those identified follows:
Ascomycetes
- Leotia lubrica
- Ascocoryne sarcoides
- Nectria cinnabarina
- Cordyceps militaris
- Paecilomyces farinosus (Isaria farinosa)
- A (?) hyphomycete that attacks larvae of moths etc. like Cordyceps militaris
- Xylaria polymorpha
- X. hypoxylon.
Aphyllophorales
- Stereum hirsutum
- S. rugosum
- Clavaria cristata
- Piptoporus betulinus
- Daedaleopcis confragrosa.
Agaricales
- Armillaria mellea
- Clitocybe clavipes
- Laccaria laccata
- L. amethystine
- Pleurotus ostreatus
- Mycena galericulata
- M. haematopus
- M. epipterygia
- M. vitilis
- M. alcalina
- M. galopus
- Panellus stipticus
- Amanita fulva
- A. muscaria
- A. citrina
- A. rubescens
- Pluteus cervinus
- Lepiota sistrata
- Coprinus atramentarius
- C. cinereus
- Stropharia semiglobata
- Hypholoma fasciculare
- Conocybe tenera
- Cortinarius cinnamomeus
- C. flexipes
- Paxilla involutus
- Boletus parasiticus (which is parasitic on other fungi)
- B. subtomentosus
- B. badius
- B. pulverulentus,
- B. chrysenteron
- Russula fellea
- R. cyanoxantha
- R. ochroleuca
- R. virescens
- R. nigricans
- Cactarius subdulcis
- C. blennius.
Gasteromyces
- Mutinus caninus
- Scleroderma citrinum.
During this meeting a visit to an old adit by R.D. Pryce yielded the luminous moss Schistostega pennata, which appears as a bright lime green patch on the floor of this adit. It is found elsewhere in South-west Britain growing typically in adits and mines on sandstone where illumination levels are very low. About 18 Herald Moths (a very attractive bright chestnut-winged moth) were hibernating on the roof of the adit. Whiskered Bats also roost here, but this adit should not be visited to avoid disturbing the bats, also the adit is in a very dangerous state at present.
