Gyromitra infula, also known as Hooded false morel, occurs in late summer and fall, not in the spring when other species of Gyromitra can be found. Its broadly lobed cap is usually pinched into two lobes, creating a saddle-shaped appearance. Its colour is variable.

Cap starts off nearly cup-shaped when young, but quickly develops two raised lobes and becomes lobed; it is smooth, loosely wrinkled (but not brainlike), and comes in various colours ranging from tan to yellowish-brown, reddish-brown, or dark brown; the undersurface is whitish to brownish, finely dusted, and sometimes attaches to the stem. Stem equal to enlarged at the base, stuffed or hollow, round to compressed, sometimes with a longitudinal fold, surface glabrous to subpubescent, coloured like the cap or lighter.

Microscopic Features: Spores are narrowly ellipsoid, measuring 17-24 x 7-11 µ, smooth, with two large oil droplets, and may have slightly thickened walls at the ends resembling shallow apiculi. Asci are 8-spored. Paraphyses are capitate, 7-10 µ wide, and contain red granular contents.

Gyromitra infula on the MushroomExpert.Com Web site.