Local Liverworts

Pellia epiphylla (Overleaf pellia) in Jesmond Dene

Liverworts are green flowerless plants that belong to the Plant Division Marchantiophyta. They reproduce by means of spores or asexually by gemmae. Gemmae are single cells or masses that can detach from the parent plant and develop into a new individual. Liverworts are often found in damp places and usually divided into leafy varieties having stems and leaves, or thallose, looking like green leafless pads.

Crescent Cup liverwort ( Lunularia cruciata) growing in a plant garden pot, named for the moon shaped gemmae cups.
Bifid Crestwort (Lophocolea bidentata) a leafy liverwort in Jesmond Dene.
Lophocolea heterophylla, flourishing, next to the Bifid Crestwort, on an old wood post. The black dots are the spore containing capsules.
Great scented Liverwort (Conocephalum conicum) looks like snakeskin and has a woodsy scent.
Star-headed Liverwort (Marchantia polymorpha) often found by walls. The gemmae cups are round and the padded parasol structures are male structures (antheridia). The female structures are like tiny umbrellas and appear on female plants. An emerging female structure (gametophore) can be seen near the middle of the photo.
Forked veilwort (Metzgeria furcata) a common thallose liverwort found on trees. From Allen Banks in Northumberland.

References:moonReferences:

https://en.wikipedia.org/wiki/Marchantiophyta

Mosses and Liverworts of Britain and Ireland- BBS 2010

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