Most finds of this species were of plants
lacking inflorescences or capsules, even where there were
substantial populations, so they could not be identified to
either of the varieties treated
Notes on habitats of B. pseudotriquetrum s. l. in C&S are as
follows. Damp or wet heathland, in areas of short and patchy
vegetation and often in flushes (often with or near Calliergonella
cuspidata, Campylium stellatum,
also near Drepanocladus
polygamus). Flushes on and above sea-cliffs (with Oxyrrhynchium
endiviifolia, Pellia epiphylla, Rhizomnium punctatum).
Patches in marshy area with short grasses at edge of pool in
floor of small old serpentinite quarry above sea-cliffs,
unshaded. With other mosses in short vegetation on damp ground
of floor of old quarry in slaty Carboniferous rock. On firm
soil or clay exposed high in inundation zones beside
reservoirs; unshaded or part shaded among patchy Molinia caerulea. Damp disturbed
ground at pool edge. Bit low on wet wall of ruin of mine
building. Patch on flushed vertical slate in old quarry in
deciduous woodland. Damp calcareous sand with sparse
vegetation in disused sand-quarry at landward edge of dunes.
Once on open damp ground on china-clay spoil.
Two records of plants with filamentous axillary
gemmae, from high in inundation-zone at edge of Cargenwen
Reservoir (DTH 04-475) with Drepanocladus aduncus, and by a
fishing pool near Retire.
Rarely or occasionally c.fr.: single vc1 record
c.fr. (6). See below for additional specimens identified to