A belated post from an outing on 23 March -
My first full day of bryophyte recording in I don't know how long took me to ST09, one of the more under-recorded hectads in Rhondda Cynon Taf with only 4 of the 25 constituent tetrads having 60+ bryo species recorded.
I started at Tylorstown Tip (aka Old Smokey), which despite being such a prominent Rhondda landmark didn't appear to have any previous bryophyte records.
The north side of the tip (split between ST09C and ST09H) produced a list of 63 species, the best of those on the colliery spoil being
Barbilophozia floerkei,
Ptilidium ciliare,
Riccardia multifida,
Climacium dendroides and
Rhytidiadelphus triquetrus. The scattered young larches proved good for epiphytes including a single weft of S
anionia uncinata (photo below) and a large(ish) cushion of
Colura calyptrifolia in an exposed location near the top of the tip (at 430m, with just some scattered young spruce for shelter).
After lunch I moved on to the southern end of the Llanwonno forestry plantation, where ST09G was a blank canvas as far as bryophyte recording goes. Rotting conifer logs among the Sitka held plenty of
Nowellia curvifolia,
Calypogeia muelleriana was found on a ditchside,
Colura was recorded on birch and rowan and
Ulota calvescens on willow (but no
Daltonia was forthcoming despite actively searching for it). A puzzling
Metzgeria with very narrow thalli was also found on willow (see photo below - note the
Frullania which gives a sense of scale). This might be the male shoots of
M. furcata mentioned in Paton but if anyone has any other ideas please let me know.
All in all it was a productive day but lacking anything to live long in the memory. 103 species were recorded, spread across four tetrads, with 135 new tetrad records being made.