I spent part of Thursday's lunch break looking for bryos in a ditch by the entrance track to Median Farm. The most obvious moss there was Physcomitrium pyriforme, fruiting abundantly. Alongside it was a narrow-leaved Dicranoid moss with yellowish setae that looked wrong for Dicranella heteromalla but I couldn't work it out. Eventually I found a single unripe pear-shaped capsule and noticed that the lower parts of the shoots had red rhizoids and gemmae. It was Leptobryum pyriforme: an uncommon and totally unpredictable moss in S Wales. Pohlia camptotrachela and Fossombronia wondraczekii were also in there, and a Sycamore sported some Orthotrichum stramineum and O lyellii.