Fink: LICHENS IN THE Upper Muississippr VALLEY 289 
consin and which in Minnesota. Consequently, I have recorded 
but a single plant from this collection, the plant being otherwise 
unknown in either state. All of the others collected by him have 
been found since in Minnesota, and Wisconsin alone suffers in 
number of lichens by the uncertainty. 
List oF SPECIES AND VARIETIES 
Ramalina calicaris (L.) Fr.—Ia., Ill., O., Neb., Ind. 
Ramalina calicaris fraxinea Fr.—Minn., Ia., Ill., Neb. 
Ramalina calicaris fastigiata Fr.—Minn., Ia., Ill., O. 
Ramalina calicaris canaliculata Fr.—Minn., Ia., O. 
Ramalina calicaris farinacea Schaer.—Minn., Ia. 
Ramalina polymorpha (Ach.) Tuck.—Minn. 
Ramalina pusilla (Prev.) Tuck.—Minn. 
Ramalina pusilla geniculata 'Fuck.—Minn. 
Ramalina pollinarella Nyl.—Minn. 
Ramalina pollinaria (Ach.) Tuck.—S. D., O. 
Cetraria islandica (L.) Ach.—Minn. 
Cetraria aleurites (Ach.) Th. Fr.—Ill., O. 
Cetraria ciliaris (Ach.) Tuck.—Minn., Ia., Ill., O. 
Cetraria lacunosa Ach.—Minn. 
Cetraria aurescens Tuck.—Minn., O. 
Cetraria juniperina pinastri Ach.—Minn. 
Cetraria saepincola (Ehrh.) Ach.—Minn. 
Evernia vulpina (L.) Ach.—Neb., Minn. or Wis. 
Evernia furfuracea (L.) Mann.—Minn., D. 
Evernia prunastri (L.) Ach.—Minn., Ia., O., Neb. 
Usnea barbata (L.) Fr.—Ia., Ill., O., Ind., Neb., S$. D. 
Usnea barbata florida Fr.—Minn., Ia., Il., O., Neb. 
Usnea barbata strigosa Ach.—1ll. 
Usnea barbata hirta Fr.—Minn., Ia., O., Neb. 
Usnea barbata rubiginea Michx.—Minn., Ill., O. 
Usnea barbata ceratina Schaer.—Minn., Ia. 
Usnea barbata dasypoga Fr.—Minn. 
Usnea barbata plicata Fr.—Minn., Ia. 
Usnea angulata Ach.—Minn., Ia., O. 
Usnea trichodea Ach.—Minn. 
. Usnea longissima Ach.—Minn. 
