
Helvella maculata
I think these may be H. maculata
either H. maculata or a very light variation of H. vespertina. I don't see any attachments of the cap to the stem, which would indicate maculata, but it is difficult to tell whether the underside of the cap is fuzzy or not, as these are young mushrooms and the caps are still rolled inwards.

Helvella maculata is a western species that features an elaborately ribbed and pocketed stem, a brownish cap that is loosely lobed, and a fuzzy, whitish undersurface. It appears under conifers and hardwoods from Alaska to California--usually in fall, but also over winter or in spring in coastal areas.