— io6 — 
C. (P latysma) juniperina (L. ) Ach. var. terrestris Schaer. On naked 
earth and among mosses, Bonanza Creek, no. 3, infertile. Not mentioned 
in the Alaskan list of Miss Cummings. 
C. juniperina var. Pinastri Ach. On birch bark, Hunker Creek, no. 1, 
infertile. 
Alectoria (Ach.) Nyl. 
A. ( Eualectoria ) ochroleuca (Ehrh.) Nyl. On earth, “the Dome,” no. 
14, infertile. Miss Cummings seems to have discriminated A. ochroleuca 
from its variety rigida (Vill.) Fr. Ehrhart’s name has priority, and rigida is 
merely a synonym. 
A. ( Bryopogon ) divergens (Ach.) Nyl. On earth, “ the Dome,” no. 15, 
infertile. 
A. ( Bryopogon ) jubata (L.) Ach. var. chalybeiformis (L.) Ach. On old 
logs, Hunker Creek, no. 16; on branches, Bonanza Creek, no. 17, both infer- 
tile. Another specimen found on spruces, Dawson, no. 19, is referable to 
var. lanestris Ach. 
Parmelia (Ach.) Hue. 
P. ( Menegazzia ) physodes (L.) Ach. On dead wood, Hunker Creek, no. 
28, infertile. 
P. physodes form labrosa (Ach.) Arn. On dead spruces, Bonanza 
Creek, no. 29, infertile. Not previously reported from the district. 
P. physodes form austerodes (Nyl.) Merrill. P. austerodes Nyl. Flora, 
1881, p. 537. On mosses, “the Dome,” no. 31, quite characteristic. On 
dead wood, Hunker Creek, no. 30, like form platyphylla, both infertile. 
Black edged as in P. vittata (Ach) Nyl. Both plants resemble the species 
except for coloration. 
P. {Euparmelid) stygia (L.) Ach. On rocks, “the Dome,” no. 45, infer- 
tile. 
P. {Eup annelid) conspersa (Ehrh.) Ach. form stenophylla (Ach.) Mer- 
rill. On rocks, Hunker Creek, no. 26, infertile. 
P. {Eup annelid) centrifuga Ach. On rocks, Bonanza Creek, no. 24, 
fertile.no. 25, infertile.; Hunker Creek, no. 21, infertile. Not mentioned in 
the Cummings list. 
P. {Euparmelid) diffusa (Web.)Th. Fr. On bark and dead wood. Hun- 
ker Creek, no. 22. Recorded by Miss Cummings from several Alaskan local- 
ities under the synonym P. ambigua. 
P. {Euparmelid) hyperopta Ach. On dead wood, Hunker Creek, no. 23 ; 
on rotten wood, West Dawson, no. 40, both fertile. P. ambigua albescens of 
the Cummings list. 
P. ( Eupannelia ) olivacea (L.) Ach. On birch bark, Bonanza Creek, no. 
27, infertile. No reaction observed with K br C. 
P. {Euparmelid) saxatilis (L.) Ach. var. omppialodes (L.) Fr. form 
panniformis (Ach.) Nyl. On rocks, Hunker Creek, no. 37, infertile. Not 
previously recognized as an Alaskan form. 
P. (Euparmelid) sulcata Tayl. On trees, West Dawson, nos. 32 and 33, 
infertile; no 34, on rocks, “the Dome,”is panniform and more or less deni- 
grate. 
