Dilated Scalewort - Frullania dilatata, click for a larger image, photo licensed for reuse
Photo ©2008 - Bernd Haynold
Click any photo for a larger image
Dilated Scalewort - Frullania dilatata, click for a larger image, photo licensed for reuse
Photo ©2008 - Bernd Haynold

Dilated Scalewort - Frullania dilatata
Family - Jubulaceae

Many thanks to Kay Newbury at Reading University for the identification only of this Liverwort species - Frullania dilatata.

A very common liverwort in the UK on a variety of trees and shrubs, especially Ash, Willow - Salix sp., Poplar - Populus sp., etc., can also occur on rock and in turf in coastal areas.  Found in well lit forests, forest edges or on free-standing trees over most of Western Europe, Asia and North Africa.  Susceptible to air pollution.  Distinctive green or brown sub-pinnately branched leafy liverwort, leaves to 1mm (0.04in) wide and 1.2mm (0.05in) long, with rounded lobes to the leaves, and large, helmet-shaped lobules which are about as wide as they are long.  The lobes lack modified cells.  Dioecious, male ♂ shoots look relatively narrow, and female ♀ shoots have warty perianths.

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