[1] However, the publication did not include a Latin description of the species, nor did it indicate the type, so the name was invalid according to nomenclatural rules.

Although the fruit body of L. montanus is morphologically indistinguishable from the widespread L. sulphureus, it is distinct genetically.

The upper surface of the fruit body is bright orange before fading to light brownish in age.

The pores on the cap underside are initially bright yellow, but fade to pale tan.

[2] Insects known to rear their young in the fruit bodies of L. montanus include the Dipteran species Ula bolitophila and Spelobia parapusio.