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Dentinum umbilicatum: Hydnum umbilicatum

Dentinum umbilicatum: Hydnum umbilicatum - Fungi species | sokos jishebi | სოკოს ჯიშები

Dentinum umbilicatum: Hydnum umbilicatum

Pileus
Cap 2.5-5 cm broad, convex, becoming, broadly convex, the disc noticeably indented or umbilicate; margin at first incurved, then decurved, sometimes wavy; surface dry, smooth, occasionally roughened or with appressed squamules, cream-buff to tawny, darker in age; flesh cream-buff, moderately thick, bruising slowly dull-orange; odor and taste mild.

Hymenophore
Teeth 5-7 mm long, cream-buff, slowly darkening to dull-orange, adnate or narrowly depressed at stipe.

Stipe
Stipe 2.5-6 cm tall, 0.5-1.0 cm thick, equal to narrowed at the base, attachment usually central; surface dry, cream-buff (lighter than the pileus), bruising dull- orange; veil absent.

Spores
Spores 8-10 x 7.5-8.5 µm, subglobose, smooth; spore print white.

Habitat
Scattered to gregarious in hardwood/conifer woods; often common under tanbark oak (Lithocarpus densiflorus) and madrone (Arbutus menziesii), sometimes with Douglas fir (Pseudotsuga menziesii); fruiting from mid-winter to early spring.

Edibility
Edible and good.

Comments
Like its larger cousin Hydnum repandum, H. umbilicatum fruits late in the mushroom season, but while H. repandum typically is assoicated with pines, e.g. Pinus muricata (Bishop pine), in our area, H. umbilicatum tends to be found with a mix of hardwoods (see Habitat) often at the same time as Cantharellus tubaeformis (yellow-foot/winter chanterelle) and Craterellus cornucopioides (black chanterelle). Hydnum umbilicatum and H. repandum are similarly colored, but can be told apart through a combination of macroscopic and microscopic characters: Hydnum umbilicatum is smaller, more slender, has an indented or umbilicate cap, and the hymenium is not subdecurrent as is sometimes the case in H. repandum. Finally, the spores of Hydnum umbilicatum are significantly larger than those of H. repandum.

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