Macroscopic feat.:

• Cap/Pileus: 1.5- 5.5 cm broad. Broadly conic, expanding to broadly umbonate, becoming nearly plane in maturity. Margin striate, upturned, irregular, and splitting in age, free of veil remnants. Dark brown to yellowish brown, hygrophanous, drying to pale yellowish brown to straw colored. Flesh white, bruising bluish in age or where injured.
• Gills/Lamellae: Attachment adnate, grayish yellowish brown, darker, with maturity. Edges whitish.
• Stem/Stipe: 35-100 mm long by 1.5-5 mm thick, even, pruinose above, covered with whitish, silky fibrils below. Flesh brownish, bruising bluish. Partial veil cortinate, poorly developed, soon disappearing.

Microscopic feat.:

• Basidio/Spores: Dark purplish brown in deposit, ovoid-ellipsoid in side view, ovoid in face view, (6.5) 7-9.5 by 3.5-5.5 µm.
• Basidia: 4-spored.
• Pleurocistidia: 13-19 by 4.5-6 µm, scattered, similar to cheilocystidia but with a shorter neck, up to 4.5 µm.
• Cheilocystidia: 15-32 by 4-8 µm, ventricose-rostrate, with a long flexuous neck up to 12 µm long, often forking.

Habitat: Common. Grows scattered to gregariously on soil rich in woody debris and litter beneath Leptospermum and Dacrydium and in pine (Pinus radiata). Reported only around Auckland, New Zealand.

Comment: Estimated to be moderately potent. No analyses are known to me. With the heavy export of lumber and raw logs from the pine plantations of New Zealand, this species has a direct gateway for spreading to many other temperate regions of the world. This species resembles many of the lignicolous Psilocybes. See also Psilocybe makarorae, Psilocybe subaeruginosa, Psilocybe cyanescens, Psilocybe cyanofibrillosa, and Psilocybe bohemica.

source - Paul Stamets "Psilocybin Mushrooms of the World"

Pictures at www.mushroomobserver.org