species fungus family described new science occurs non burned forests western north_america including california idaho montana oregon washington produces fruit bodies tall pitted conical caps pitted maturity color yellow tan young cap ridges brown black maturity dried taxonomy described new science united_states canada study published journal resulted aimed help clarify taxonomy biology distribution species north_america specific epithet honors described similar washington state 1930s according species description named previously described collections washington molecular analysis determined type collection contained distinct species rendering validity taxon dubious previously identified phylogenetic species defined dna sequence study despite light coloration young fruit bodies groups clade named european black black morphological characteristics clade include pits cap usually elongated vertically mature fruit bodies presence space cap stipe description fruit bodies high conical cap high wide widest point cap surface features pits ridges formed intersection primary vertical ridges frequent shorter secondary vertical ridges occasional sunken horizontal ridges cap attached stipe deep wide ridges smooth finely covered densely initially pale yellowish pale tan grayish brown maturity eventually nearly black dried flattened young eroded maturity pits somewhat elongated vertically particularly mature finely yellowish young pale tan pale grayish brown fruit bodies found transitional stage upper cap turned dark lower remains light whitish pale brownish stipe long wide roughly equal width length slightly thicker near base surface initially covered whitish mushroom ages typically develops prominent ridges pits maturity flesh whitish measuring thick hollow cap layered particularly base stipe sterile inner surface cap whitish covered short soft hair elliptical smooth measuring spore bearing cells spored cylindrical measure cylindrical measure tips shaped rounded club shaped fuse shaped contents hyaline translucent brownish potassium hyphae sterile cap ridges measure terminal cells shaped similar hyaline brownish contents north american generally considered choice edibility mentioned original description similar species distinguished similar north american differences ecological morphological features resembles young specimens ridges caps species maturity smaller measuring potential fruit body color young specimens stipe habitat distribution ecology suspected saprobic mycorrhizal different stages life cycle fruit bodies grow singly scattered groups ground conifers particularly douglas fir pine white fir fruiting occurs april june fungus collected california idaho montana oregon washington identified phylogenetic species shown non native species contributing factor success invasive species western north_america
Morchella snyderi