102 
CUMMINGS 
of Dr. Rothrock’s list of the species collected by Dr. Bean, Nylander 
states that under the name P. co77imanis DC. rock forms of P . rhodo~ 
leuca Fr. fil. are included. 
RINODINA. 
KEY TO THE SPECIES. 
Thallus incrusting mosses... turfacea. 
Thallus on wood or rock. 
Thallus brown, hypothallus conspicuous. sophodes atrochierea. 
Thallus white, hypothallus inconspicuous. sophodes co7ifragosa. 
91. Rinodina sophodes confragosa (Ach.) Tuck. 
Pamielia confragosa Acharius, Meth. Lich. Suppl. 33. 1803. 
Rinodina sophodes confragosa Tuckerman, Syn. N. A. L. 208. 1882. 
Farragut Bay (Trelease, S26). On old boards. Accordingto Roth- 
rock, Dr. Bean collected this species in Alaska, but no definite locality 
is given. Tuckerman, Syn. N. A. L. 20S, indicated the Pacific Coast 
as the habitat of this species in this country; I can find no other 
records of it. 
92. Rinodina sophodes atrocinerea (Diks.) Nyl. 
Lichen atrocinereus Dikson, Crypt. Brit. 14. t. 9. f. 2. 1785-1801. 
Rinodina sophodes b. atrocmerea Nylander, Lich. Par. N. 43. 1855.—Sow- 
erby, Eng. Bot. t. 2096. 
Plover Bay, Siberia (Trelease, 992). On rock. New to the Alaskan 
region. 
93. Rinodina turfacea (Wahl.) Th. Fr. 
Lichen turfaceus Wahlenberg, FI. Lapp. 408. 1812. 
Rinodina turfacea Th. Fries, Lich. Arct. 126. i860. 
St. Matthew Island (Trelease, S66 in part) ; St. Michael (Setchell). 
The specimen from St. Michael grew on moss with Biatora hypno- 
phila and Placodiu77i ju7iger77ia7inice . Collected by Wright on the 
islands of Bering Strait, and recorded by Rothrock as occurring in Dr. 
Bean’s collection, but with no definite locality. Nylander records it 
under the synonym Lecanora ttirfacea as collected at Port Clarence. 
Reported also from British Columbia, Greenland, and Labrador. 
Additional Alaskan species of Ri7iodina are as follows : R. nim- 
bosa (Fr.) Th. Fr. and R. sophodes (Ach.) Nyl., collected by Dr. 
Bean, no definite locality being recorded, R. sophodes being listed 
also by Nylander for Port Clarence; 7 ?. t7i7-facea roscida Th. Fr. 
and R. turfacea miniarea Nyl., collected by Wright on islands in 
Bering Strait. 
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