When: 2016-12-18

Collection location: Xewkija, Gozo, Malta [Click for map]

Who: Stephen Mifsud (FungusMan)

No specimen available

Notes:
Habitat: Artificial mulch under Nerium and Cypress trees (embelishment)
Habitat notes: Roadside embelishment
Remarks: Numerous solitary specimens in small groups

Macro Characters
===
Main characters
Morphological type: Agaric, Conocyboid?
Hymenium: Lamellae
Length: 42 – 42mm (mean: 42mm)
Umbo: Small and shallow, darker from rest of cap
Ring: No
Volva: No
Overall texture of the pileus: Smooth, becoming wrinkled with age
Smell: Indistinct
Taste: Not tested
Spore print: Ochre to pale tobacco brown
Stipe/flesh bruising: No reaction
Stipe/flesh exudate: Not tested
Character 1
Character 2
Further observations

Pileus
Cap diameter: 16 – 16mm (mean: 16mm)
Cap colour: Tobacco amber-brown with a darker centre and paler radial striations at the terminal half
Cap shape: Convex then applanate with upturned margins
Cap margin: Regular, minutely furrowed and subcrenulate at the edge
Cap texture : Smooth, minutely rugulose with age
Cap ornamentation: Smooth, unornamented
Cap additional notes: Slightly hygrophanous

Stipe
Stipe length: 38 – 38mm (mean: 38mm)
Stipe diameter: 2 – 2mm (mean: 2mm)
Stipe colour : Ochre becominb browner towards the base
Stipe flesh: Fistulose, cream to pale buff
Stipe shape: Cylindrical, slightly arcuate at the base
Stipe cross-section: Terete, hollowed
Stipe texture: Pruinose or minutely-floccose tufts
Stipe strength: Tough, elastic

Hymenium (Lamellae)
Lamella width: 2 – 2mm (mean: 2mm)
Lamella attachment: Narrowly adnexed (almost free)
Lamella colour: Tobacco brown, homogenous
Lamella edge colour: Beige or slightly lighter from the lamella face
Lamella edge margin: Flocculose
Lamella edge profile shape: Shallow convex
Lamella spacing / density: Moderately crowded
Lamellulae: Few or absent
Intervenose: No

Micro Characters
====
Basidia
Basidiospores: (2-)4
Basidium length: range 20 – 21.25 µm
Basidium length: mean 20.6 µm
Basidium width: range 7 – 8 µm
Basidium width: mean 7.4 µm
Sterigmata length: 1.9 µm
Shape: Clavate, widest below the apex, head rounded-ovate then rectangular below
Remarks: Sterigmata very slender and short, often inconspicuous

Cystidia
Pleurocystidia (gill faces): Absent or not observed
Pleurocystidia size: n/a
Pleurocystidia other notes: n/a
Cheilocystidia (gill edges): Numerous in clusters, stout, broadly clavate to capitate with a large rounded head.
Cheilocystidium ornamentation: Smooth
Cheilocystidium length: range 21.35 – 34 µm
Cheilocystidium length: mean 26.44 µm
Cheilocystidium width: range 8 – 14.8 µm
Cheilocystidium width: mean 12.07 µm

Spore
Spore print: Ochre to pale tobacco brown
Spore length range: 6.7 – 9.4 µm
Spore length mean: 8.2 µm
Spore width range: 4.5 – 5.6 µm
Spore width mean: 5.1 µm
Spore Q factor range: 1.3 – 1.9
Spore Q factor mean: 1.6
Spore shape: Elliptical
Oil bodies: Single central oil body sometimes accompanied by another 1-2 smaller oil bodies
Amyloid reaction: Inamyloid
Spore surface: Smooth
Apiculum: Slightly eccentric and bent sideways (oblique orientation)
Germinal pore: Tiny, central

Misc.
Pileipellis type: Hymenoderme of pyriform hyphae 20-30um wide with a wide short peduncle.
Veil: Absent
Caulocystidia / hair: Not examined
Radicles/rhizoids at stipe base: White, not conspicuous
Clamp junctions: Very few observed

Reactions
==
KOH: No reaction

Images

IMG_0121.JPG
Gill edge squash (Cheilo + Basidia)
IMG_0148.JPG
Spores
IMG_0160.JPG
Pileipellis
IMG_9041s.jpg
Mature specimen
IMG_9043s.jpg

Proposed Names

82% (1)
Recognized by sight: Macroscopic features
Based on microscopic features: Spores, Cheilocystidia, pileipellis, basidia

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= Observer’s choice
= Current consensus

Comments

Add Comment
New taxon for this species
By: Stephen Mifsud (FungusMan)
2017-01-07 01:42:13 CST (-0500)

This is now classified as Pholiotina dasypus (Romagn.) P.-A. Moreau (2005)