Haematomma ochroleucum var porphyrium Haematommataceae
Haematomma ochroleucum var. porphyrium

Growth type crustose
Chemical results: K+ pale yellow, C-, P+ pale yellow, UV-.
Apothecia K+ purple

Can form large patches on dry, siliceous or slightly calcareous walls, gravestones and rocks

Whitish or grey-white thallus with a distinctive 'fringed' white prothallus. When present the scattered discs are red.

Haematomma ochroleucum var. ochroleucum has a yellowish-grey thallus.
Phlyctis argena is usually corticolous, K+ yellow > red


Haematomma ochroleucum var porphyrium


Haematomma ochroleucum var porphyrium


Haematomma ochroleucum var porphyrium
Haematomma ochroleucum var porphyrium
St. Huberts, Corfe Mullen, Dorset. January 2014

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