Collemataceae Scytinium gelatinosum (Leptogium gelatinosum) Growth type foliose Chemical reactions negative Widespread, occurs among mosses on calcareous rocks, dunes and soil and on mortar. Occasional over moss at base of trees. The most frequent Leptogium in southern and western Britain and Ireland. Can be variable. The brown or greenish-brown lobes usually erect and wrinkled with entire or lanceolate margins. Usually fertile, apothecia to 1.5mm, discs red-brown or brown. Isidia are absent. Similar: Leptogium pulvinatum. Smaller more divided lobes.

Scytinium gelatinosum (Leptogium gelatinosum)
On mortared wall. Parkstone, Dorset. February 2013