306 BOTANICAL GAZETTE [MAY 
A rare plant, known only from the cold high Sierras. Collected by 
BOLANDER at Mono Pass in 1867, and so far as I know not reported authenti- 
cally by others. Occurring on earth deep in the crevices of rocks beside the 
observatory on the summit of Mt. Rose, associated with Gyrophora rugifera. 
For the determination of this singular Acarospora I am indebted to Dr. 
W. G. Fartow, who kindly compared my material with that in the Tucker- 
man Herbarium. 
10. Lecanora rubina (Vill.) Ach. 
11. Lecanora melanophthalma (DC.) Jatta. 
12. Candelariella cerinella (Flk.) A. Zahlbr.—On rocks at 
10,800 ft. and also on the thallus of other lichens. 
13. Blastenia ferruginea (Huds.) Arn.—On the thallus of other 
lichens and also on rocks at 10,800 ft. 
14. Caloplaca elegans (Link) Th. Fr.—Common at all elevations 
from 8000 ft. to the summit. 
15. Caloplaca murorum (Hoftm.) Th. Fr.—Not very abundant 
at 8000 ft. 
_ 16. Xanthoria lychnea laciniosa (Schaer.).—On the thallus of 
Gyrophora rugifera and in crevices of rocks at 10,800 ft.; not very 
plentiful. 
17. Physcia tribacia (Ach.) Tuck.—A few small, sterile speci- 
mens were collected at 8000 ft. and at 10,800 ft. 
Everson, WASH. 
