many thanks Alan,
P.hymenina is not in one of my two lichen books and in the other "lichens - Frank Dobson" it is listed together with P.polydactyla, as having the same features, i think the fact that it is a 1979 issue may have some bearing on my confused id
the rhizines were almost white on the younger portions, being darker on the older parts , especially where they were in contact with the ground,
Brian.
Quote:
Originally Posted by AlanS  I agree that this is Peltigera hymenina. The pale ochre veins are diagnostic and though the old rhizines are shown as dark brown, we can also see in the first photographs that they are pale when fresh.
P. polydactylon (correct spelling under current rules, contrary to several books) is rare in Britain and the great majority of past records here refer to P. hymenina. I have seen it only once, in a grassy basalt quarry near me, from which I fear it may now have disappeared. The veins on the underside are conspicuously dark. My impression of it, reinforced by authentic photographs from the continent, is that the apothecia are held more rigidly erect and really do look like "many fingers" as the name suggests.
Alan |