6 
78. 
79. 
80. 
81. 
82. 
83. 
84. 
85. 
86 . 
87. 
88 . 
89. 
90. 
91. 
92. 
93. 
94. 
95. 
96. 
97. 
98. 
99. 
Texana Tuck. 
** saxatilis Ach. 
Texas. 
N. Am. 
varr. rosajformis Ach.: omphalodes Fr. 
isidiocera Nyl. 
**la3vigata Ach. 
var. sinuosa Ach. 
“ Am. arct. occid.” 
N. Am. 
aurulenta Tuck. 
** pertusa Schser. 
** physodes Ach. 
var. cnteromorpha Tuck. 
**colpodes Ach. 
cribellata Tayl. 
liyperopta Ach. 
encausta (Sm.) Nyl. 
Kamtschadalis Eschw., var. 
Southern. 
Northern. 
Northern. 
Northern. 
U. S. 
“Am. bor. occid.” 
Greenland. 
Greenland. 
Americana Nyl. Mex. & N.W. 
b. Ocliroleuca?. 
** caperata Ach. 
** conspersa Ach. 
N. Am. 
N. Am. 
** var. stenophylla Ach. 
t leucochlora Tuck. 
* molliuscula Ach. 
(Everniopsis Nyl.) trulla Ach. 
*incurva Fr. 
** ambigpa Ach. 
*centrifuga Ach. 
§ congruens Ach. 
c. Olivaceo-fuscaj. 
** olivacea Ach. 
N. Am. 
“Am. bor.” 
Rocky Mts. 
Mexico. 
Subalpinc. 
U. S. 
Alpine and subalpine. 
“N. Am.” 
N. Am. 
varr. prolixa Acli.: ib, ff. panniformis Tuck., 
exasperata (DN.) 
100. *stygia Ach. 
101. lanata Nyl. 
102. alpicola Th. Fr. 
**dendritica Nyl.: 
Alpine. 
Alpine. 
Greenland. 
11. Physcia (DC., Fr.) Th. Fr. 
103. * ciliaris Ach., var. angustata Tuck. Northern. 
104. erinacea Ach. Calif. 
105. ** aquila (Ach.) Nyl., var. detonsa Tuck. N. Am. 
106. ** pulverulenta (Schreb.) Nyl. Northern, 
var. pityrea Fr. 
107. ** speciosa (Wulf., Fr.) N. Am. 
varr. stellata Tuck.: granulifera ib.: ** hypoleuca Ach.: podocarpa 
Tuck.: galactophylla ib.: lcucomela (Eschw.) 
108. Lean a Tuck. 
109. dilatata Nyl., f integra ib. 
110. callosa Nyl. 
111. ** stellaris (L.) Nyl. 
Northern. 
“ Mexico.” 
“ Calif.” 
N. Am. 
varr. **aipolia Schajr: ** astroidea Tuck.: Domingensis ib.: **tri- 
hacia Fr.: liispida ib. 
