286 GUERMNSE Y. 
Parmelia saxatilis, L. 
Common on rocks and tree-trunks. Var. furfuracea, Schaer. 
Guernsey (Mrs. Collings). 
Parmelia sulcata, Tay]. 
Guernsey (Salwey). 
Parmelia omphalodes, Ach. 
Common on the cliffs and on the coast of the lowlands. 
Parmelia laevigata, Sm. 
Generally distributed and not uncommon. Var. rugosa, Tayl. 
Guernsey (Salwey). 
Parmelia Delisei, Dub. 
On rocks near Petit Bot. Near Fort Le Marchant. Near Les 
Camps, Catel. (Var. isidiascens, Nyl., occurs in Sark.) 
Physcia flavicans, Sw. 
Rare: always on rocks, never on trees in these islands. Thinly 
scattered all along the southern cliffs from Jerbourg to Pleinmont. 
Physcia chrysophthalma, L. 
Guernsey (Crombie). 
Physcia parietina, L. 
Very common. Var. cinerascens, Leight. Near Lerée. 
Near the Hermitage, Lancresse. Les Capelles. Var. ectanea, 
Nyl. Guernsey (Crombie). I have found a terricolous form on a 
bank at Plaisance, St. Peter’s. 
Physcia ciliaris, L. 
Rare. On an old roadside tree at Saumarez, St. Martin’s ; and 
on another on the road to Doyle’s Monument. 
Physcia pulverulenta, Schreb. 
Vauxbelets Valley, on elms. On trees near Les Mourants, Catel. 
On a wall towards Rousse Martello Tower. f. deminuta, Cromb. 
Guernsey (Crombie). 
Physcia pityrea, Nyl. 
Guernsey (Crombie). 
Physcia obscura, Ehrh. 
On trees near Les Videclins, Catel; and in the valley at Calais, 
St. Martin’s. Var. ulothrix, Ach. Guernsey (Salwey). 
Physcia adglutinata, Flk. f. sorediata, Nyl. 
Between Les Blanches and Doyle’s Monument. 
