14 
P. perforata (Jacq.) Ach. Coast; Mr. Bolander? 
P. tiliacea (Ehrh.) Floerk. Rocky Mountains (trees) 
Dr. Parry. 
P. saxatins (L.) Fr., a. Oregon; Dr. Lyall. Rocky 
Mountains ; Dr. Hayden. 
P. physodes (L.) Ach., a. Coast; Mr. Bolander. Var. 
enteromorpha, Tuck. Monterey; Menzies. North 
West Coast; Douglas. 
P. olivacea (L.) Ach. Coast; Mr. Bolander. 
Parmelia Fendleri, Tuck. in litt., &€ mm Nyl. Enum. 
Gen. p. 105, thallo pusillo orbiculart microphyllino ex 
olivaceo fuscescente subtus pallidiori glabro fibrilloso, 
lacinus substellatis linearibus planis multifidis denta- 
tis, subinde congestis complicats ; apothecus confertis 
castaneis margine crenulato. Spore octonae, ellipsoidea, 
simplices, diam. dein duplo longiores, incolores. Platy- 
. sma, Nyl. Syn. Lich. p. 309. Trunks, Santa Fe, 
New Mexico; Mr. Fendler. Has occurred to me (on 
old rails) in Maryland and Massachusetts; in Penn- 
sylvania (Dr. Michener) and in South Carolina, on 
trunks of Pine and dead wood (Mr. Ravenel.) Sper- 
mogones now submarginal, but never in the strict 
sense in which this position is characteristical in Ce- 
traria ciliaris ; nor do they appear to me to offer any 
important differences from those of Parmelia stygua. 
P. stygia (L.) Ach. Rocky Mountains; Dr. Parry. 
P. caperata (L.) Ach. Coast; Mr. Bolander. N. Mexi- 
co; Mr. Fendler. 
P, conspersa (Ehrh.) Ach. Coast; Douglas. Mr. 
Schott. N. Mexico; Mr. Fendler. 
P. molliuscula, Ach., e Nyl.(P. chlorochroa, Tuck.) 
Rocky Mountains; Dr. Hayden. 
Puyscia erinacea (Ach.) Tuck. Coast. Monterey; 
Menzies. San Diego; Dr. Parry. 
