For more information about Waterhall, see Wilding Waterhall
Some of these identification were made by another lichenologist.
Lichens on a Hawthorm
Teloschistes chrysophthalmus. Golden-Eye. Very obvious "eye-lashes" (spinules) Now quite common on South Downs hawthorns.
Usnea cornuta (a "beard lichen"). Hold-fast (where lichen is fixed to tree) not black. Stout main branches.
Hypotrachyna revoluta, with brown fruiting bodies; fruiting bodies are rare. Lobes rolled down at the margin. This is not a typical-looking H. revoluta.
Lichens on worked wood
Hypogymnia physodes. Very characteristic narrow radiating lobes. Lobe ends often turn up with soredia (fluffy structures for vegetative reproduction) on the underside extending to the fan-like margin
Fuscidea lightfootii. Bright green thallus (body). Apothecia (fruiting jam tarts) dark brown to black)
Flavoparmelia soredians. Very similar to F. caperata. Chemical spot test - Potassium hydroxide - yellow turning red - separates it from F. caperata
Placynthella icmala. Thallus chocolate brown. Coral-like granules
Lichens on a Sycamore.
Phaeographis dendritica. This is a script lichen. Most script lichens need chemical and microscopic spore analysis to identify but P. dendritica has very tree-like lirellae (elongated apothecia with furrows along the middle)
Pyrrhospora quernea. Thick ocher to greeny faun thallus if granular soredia (reproductive structures like little fluffy balls). Often has red-brown apothecia
Lecanora compellans. Looks like Pyrrhospora quernea but with green-yellow small soredia. Very similar to L. compellans and L. barkmaniana. Chemical spot tests are needed to separate these out. L. compellans spot tests are all negatives.
