Coscinodon calyptrata (Drumm.)
Annotated by Joe C. Elliott, Dec 2018.

Montana: Lincoln County: On Montana Route 37, 16 miles SW. Eureka.
48.80961° N, 115.29404° W,
Uncertainty: 500 meters. "Mapped to the historical locality of Hwy 37 2 mi N of collections at Gold Creek, which was described as 18 mi SW of Eureka. Generated 500 m uncertainty. Area has since been inundated by Lake Koocanusa and the highway has been relocated."
Thin soil on granite boulder and bluff.

F. J. Hermann 22429, Aug 28, 1968
MONTU, Accession: 64739