259 Lichenes of New England. 
tion given by Halsey. No other American botanists 
seem to have noticed it. 
S. pulmonàcea, is I believe, rare in the fructified state. 
I gathered ample specimens in this condition, on trees 
in the lower regions of the White Mountains. 
Corrzwa saturninum, Ach. Lichenogr. Unie Scher. ! 
E. Bot. t. 1980, Hook., Colléma tomentósum, Hoffm., 
(cit. Ach.) Parmélia saturnina, Ach. Meth., Lichen 
saturninus, Smith, (Linn. Trans. I. 84.) On trees in 
sandy pine woods, ‘Cambridge and Watertown ; but not 
as yet found in ABIRE which is said by Hooker 
to be “ very scarce." Is not Hoffinann’ s name of prior 
authority ? . 
Growing with the last, we have a plant answering 
generally to such descriptions as I have seen of C. pul- 
chéllum. ‘That species is enumerated by Muhlenberg, 
but not to my knowledge, by any other American bot- 
anist. 
Peuticera, Hoffm. This genus, excluding the Sol- 
orine and Nephrómata, I adopted in labelling my spe- 
cies, on the authority of Scherer, Sprengel, and Mon- 
tagne, as of prior authority to the Peltidea of Acharius. 
Indeed Acharius himself cites Hoffmann's names as 
Synonymes of ‘his species, in the earliest work in which 
his Peltidea appeared.. The form called Peltidea spuria 
in Ach. Meth., Hook., which is the « Peltigera spüria, 
Germanor. et Anglor.” of Scher.!, and reduced by 
Spreng. to Peltigera ruféscens, Hoffm., occurs very 
distinetly on sands in Cambridge. Its“ apa om 
ant fronds, almost every lobe of which is fertile,” t 
