Chlorophyllum olivieri

🏷️ Description

The Conifer Parasol (Chlorophyllum olivieri) is a robust and large mushroom with a distinctive shaggy appearance, often found in coniferous forests. 🍄 Although it's prized as an edible mushroom, caution is essential when foraging, as it can be easily confused with toxic look-alikes, such as the poisonous Chlorophyllum molybdites (false parasol) or Macrolepiota procera (parasol mushroom). The key distinguishing features are the cap's rough, shaggy scales and the white to light brown stalk that turns reddish when bruised. When harvesting, always check the spore print to confirm the identity, as C. molybdites has a green spore print.

🍽️ The Conifer Parasol has a rich, earthy flavor and can be used in various culinary creations, from sautéing and grilling to being stuffed or pickled. However, never eat this mushroom raw or undercooked, as it can cause gastric distress. Its look-alikes are often found in similar habitats, making accurate identification a must for safe foraging. So, while it’s a delicious find for those who know it well, be sure to approach with care and confidence! 🍄🔍

🎨 Color-Changing Flesh Magic: When scratched or cut, Chlorophyllum olivieri showcases its party trick: the flesh transitions from orange to pinkish to red, especially in the gills and stem.

🔎 Identification

🎩 Cap

• Size: 5–18 cm wide, starting subglobose (round) but flattening with age.

• Color & Texture: Cream-colored to gray-brown, cracking into fibrillose scales that give it a shaggy, torn appearance. The center is darker red-brown, surrounded by concentric flat scales, often slightly curved.

• Edges: Blunt, with a soft, fluffy covering when young. With age, the cap may appear uniformly grayish to olive-brown.

🍂 Gills

• Structure: Free, wide, and frequent, with 85–110 full plates reaching the stem and many smaller plates in between.

• Color: Initially white, turning cream with pinkish spots, and bruising red or brown when damaged. The edges are finely fringed.

📏 Stem

• Size: 6–18 cm long and 0.8–2 cm thick, cylindrical, with a sharply thickened base. The base may be slightly curved.

• Surface: Smooth to fibrous above the ring, bruising reddish to brown. Hollow, hard, and brittle.

• Color Change: Whitish initially, but bruises to red-brown, gray, or ochre-brown with age or touch.

👗 Ring

• A thick, double, and movable ring that is white when fresh but darkens with age.

• The ring's two edges: one fringe curls upward, while the other hangs downward. This distinct feature is a key ID clue!

🍖 Flesh

• Cap Flesh: Thick in the center, thin at the edges. Whitish, but bruises orange-saffron-yellow, pink, then red-brown.

• Stem Flesh: Whitish, aging to reddish or saffron, and bruising similarly to the cap.

👃🍴 Smell & Taste

• Smell: Varies—described as soft and mushroomy, pleasant, or even raw potato-like.

• Taste: Mild, sometimes with a nutty hint.

🔬 Spore Print

• Spore Color: White to pale yellowish.

• Shape & Size: Elliptical, smooth spores (8.0–11.0 x 5.5–7.0 µm), colorless but dextrinoid in Melzer’s reagent.

🌲 Ecology & Habitat

• Distribution: Found in coastal Northwestern California (fall and winter) and across Europe (summer to late autumn). Rare further south.

• Environment: Thrives in rich leaf litter, humus, coniferous and deciduous forests, gardens, parks, and lawns. It can grow alone, scattered, or in impressive clusters.

👀 Look-Alikes

• Chlorophyllum brunneum: Features a bulbous stipe base and darker cap scales.

• Chlorophyllum molybdites (TOXIC): Has greenish gills and spore print—be careful not to confuse them!

📜 Synonyms

• Lepiota olivieri Barla (1886)

• Lepiota rhacodes var. olivieri (Barla) Barla (1889)

• Mastocephalus olivieri (Barla) Kuntze (1891)

• Macrolepiota olivieri (Barla) Wasser (1980)

• Macrolepiota rhacodes f. olivieri(Barla) de Kok (1998)

Photo sources:

Photo 1 - Author: Peter Abrahamsen (CC BY 4.0)

Photo 2 - Author: Cassidy Best (CC BY 4.0)

Photo 3 - Author: Heiko Weber (CC BY 4.0)

Photo 4 - Author: Jacques Neuberg (CC BY 4.0)