Observation 47079: Mycena (Pers.) Roussel
When: 2010-06-18
No herbarium specimen

Notes: Habit. Scattered to gregarious.
Habitat. On sandy soil and leaf litter under Dacrydium cupressinum, Podocarpus totara and Cyathea dealbata on the banks of a small stream.
Pileus. 15-30mm in diameter, conic to campanulate, sub-umbonate, margin decurved when young becoming uplifted with age, yellowish-brown, darker brownish-orange towards the disk, translucent-striate, surface moist when fresh, silky, hygrophanous.
Lamellae. Narrowly adnate with decurrent tooth, sub-distant, moderately broad, 2mm wide, two to three tiers of lamellulae, margin concolourous, fimbriate, surface pruinose, occasionally furcate at pileus margin, pale yellow in young and mature specimens.
Stipe. 50-80mm long by 1-3mm in diameter, centrally attached, occasionally radicating, occasionally subclavate and compressed, sparsely covered in very fine dark reddish-brown fibrils becomming thicker towards the base, yellowish-brown, concolourous with pileus becoming darker reddish-brown towards the base and black at the base, cartilaginous, veils absent.
Spore deposit. White in mass.
Chemical reactions. KOH dark reddish-brown in all tissue.
Micro. Spores slightly amyloid, on average 10 × 8µm, amygdaliform in side view, ellipsoid in face view. Cheilocystidia 44 × 20µm, utriform to broadly utriform. Pleurocystidia uncommon, narrowly utriform, 25 × 12.5µm. Basidia 20-33.5 × 5-7µm, clavate. Hymenophoral trama interwoven. Pileipellis a trichoderm made up of long cylindrical hyphae with encrusted inner walls, differentiated pileocystidia in the form of aculeate setiform lamprocystidia, on average 112.5 × 17.5µm with encrusted inner walls. Caulocystidia absent.

[admin – Sat Aug 14 02:03:55 +0000 2010]: Changed location name from ‘Northwood Reserve, Albany, Auckland, New Zealand.’ to ‘Northwood Reserve, Albany, Auckland, New Zealand’

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Comments

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This…
By: Michael W (Michael Wallace)
2010-06-18 05:45:26 CDT (-0500)

…collection is a match in macroscopic and microscopic form with the specimens shown in the link below.
http://nzfungi.landcareresearch.co.nz/...

Created: 2010-06-18 05:43:43 CDT (-0500)
Last modified: 2011-03-07 00:49:31 CST (-0600)
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