White Saddle
From the latest record: 2026-09-22.
Smooth to wrinkled or irregularly folded, covering the exposed upper surface of the saddle-shaped apothecium; ivory-white to cream or pale buff
Irregularly saddle-, mitre- to lobed-shaped, usually with 2–4 strongly folded or curled lobes; whitish, ivory to pale cream; margin wavy
Ffertile surface exposed over the upper lobes
Robust, white to cream, hollow and strongly longitudinally ribbed, fluted and chambered; ribs often branch and reconnect
Spore print white
Mycorrhizal, mainly with hardwoods such as beech and oak, occasionally with conifers; woodland, path edges and disturbed forest soil; solitary, scattered or gregariously; summer to late autumn
Poisonous (hydrazine toxins); historically eaten after cooking
Gyromitrin and related hydrazine compounds
Fruit body medium to large; stipe ~4–10 cm long and ~0.8–3 cm thick
Apothecium ~3–8 cm wide
Whitish; unchanging when cut
No macroscopic reagents reaction
Faint, mushroomy and slightly sweetish
Indistinct
Spores ellipsoid, smooth, hyaline, usually with one large central oil droplet, ~17–21 × 10–13 µm; asci cylindrical, 8-spored, ~220–300 × 12–18 µm, inamyloid;
Ivory saddle fungus with a deeply fluted hollow stipe
1822). Syst. Mycol. (Lundae) 2(1): 14.
Laasu tee, Raudoja, Harju, Eesti
Mixed forest woodland edge with deciduous trees, within Arctostaphylos plant bushes, near gravel road verge
59°23'12.4"N 25°23'31.0"E
🌡️ 14°C ⛅ Passing clouds 💨 Wind 30° NNE->SSW, 17 km/h
Original Instagram post#helvellacrispa #mushroomphotos #fungimacro #whitesaddle #naturephotography
Back to the collection · Photography and field notes by @fungarium.info