Laccaria fibrillosaSynonymsLaccaria masoniae
BiostatusPresent in region - Indigenous. Endemic
Images (click to enlarge) Caption: Watercolour Owner: G.M. Taylor | Caption: Watercolour Owner: G.M. Taylor | Caption: L. fibrillosa: g, basidium; h, spores. | Caption: Watercolour Owner: G.M. Taylor | Caption: Laccaria fibrillosa: 7569: PILEUS: 10-30 mm diam, convex to uplifted, often depressed, some with central small but sharp umbo, sulcate, long, thin, tightly appressed silky fibrills running from disc through troughs of sulcations to margin, ground color Owner: Greg Mueller | Caption: Laccaria fibrillosa: 7570: PILEUS: 5-30 mm diam, convex to uplifted, often depressed, some with central small but sharp umbo, sulcate, long, thin, tightly appressed silky fibrills running from disc through troughs of sulcations to margin, ground color g Owner: Greg Mueller | Caption: Laccaria fibrillosa: 7587: PILEUS: 8-12 mm diam, campanulate, strongly umbonate, umbo abrupt, pointy, sulcate, covered with appressed, long, silky fibrills, ground color tan, fibrils black. LAMELLAE: adnate to adnexed, moderately distant, thick, 6 mm b Owner: Greg Mueller | Caption: fruitbody Owner: J.A. Cooper | Caption: Laccaria fibrillosa?: 7494: PILEUS: 10-30 mm diam, campanulate to broadly convex, strongly depressed, deeply sulcate, orange brown at disc and between ridges, pale elsewhere. LAMELLAE: adnexed, distant, relatively thin, up to 5 mm broad, entire, pale v Owner: Greg Mueller | Caption: Laccaria fibrillosa: 7497: PILEUS: 5-20 mm diam, convex to broadly convex, strongly depressed, covered with appressed black slicky fibrills when fresh, deeply sulcate, dark organge brown fading to buff. LAMELLAE: adnexed, moderately distant to distant, Owner: Greg Mueller | Caption: Laccaria fibrillosa: 7500: see GMM 7497 and photo Owner: Greg Mueller | Caption: Laccaria fibrillosa?: 7508: see photo, medium size, some scales on stipe, medium sized spores with medium size spines Owner: Greg Mueller | Caption: Laccaria fibrillosa: 7526: PILEUS: 7-15 mm diam, convex, umbonate when young soon becoming depresse, strongly sulcate, appressed fibrillose, gound colour medium brown, fibrills dark brown to black; margin, decuved to upturned, undulate. LAMELLAE: adnex Owner: Greg Mueller | Caption: Laccaria fibrillosa: 7538: PILEUS: 12-25 mm diam, broadl convex, depressed, youngest specimen with sharp umbo, strongly undulate to disc, covered in long appressed silky fibrills, ground color dull vinaceous brown to dull tan, fibrills slightly darker. Owner: Greg Mueller | Caption: Laccaria fibrillosa: 7540: PILEUS: 12-25 mm diam, convex to broadly convex, depressed, young specimens with umbo in center of depression, strongly sulcate to disc, covered with long appressed silky fibrils, ground color dull pale vinaceous to dull tan, f Owner: Greg Mueller | Caption: Laccaria fibrillosa: 7548: PILEUS: 15-35 mm diam, broadly convex, strongly depressed, sulcate, covered with thin long appressed fibrils, ground color pale dull vinaceous to dull tan, fibrills dark brown to black. LAMELLAE: adnexed, distant, relatively Owner: Greg Mueller | Caption: Laccaria fibrillosa: 7549: PILEUS: 7-30 mm diam, campanulate to broadly convex, depressed, often with central umbo, covered with fine tightly appressed long fibrills when young less dense in age, ground color dark grayish violet to tan to ochraceous, fib Owner: Greg Mueller | Caption: Laccaria fibrillosa: 7562: PILEUS: 5-45 mm diam, campanulate to convex to broadly convex to planne, often depressed, some with small pointed umbo at disc, covered with thin, long, tightly appressed silky fibrills, sulcate, translucent to disc, violet when Owner: Greg Mueller | Caption: fruitbody Owner: J.A. Cooper | Caption: caulocystidia Owner: J.A. Cooper | Caption: basidia and spores Owner: J.A. Cooper | Caption: immature fruitbody showing violaceous colour. Mature cap showing fibrils and dark umbo. Owner: J.A. Cooper | Caption: fruitbody Owner: J.A. Cooper | Owner: J.A. Cooper | Owner: J.A. Cooper | Caption: Dried type specimen Owner: Herb PDD | Caption: Dried type specimen Owner: Herb PDD |
Article: McNabb, R.F.R. (1972). The Tricholomataceae of New Zealand. 1. Laccaria Berk. & Br. New Zealand Journal of Botany 10(3): 461-484 (http://www.rsnz.org/publish/abstracts.php). Description: PILEUS: 0.5-3.5 cm diam., strongly convex when young,
convex to plano-convex at maturity, typically umbonate, hygrophanous, non-viscid,
innately radially fibrillose, ends of fibrils often reflexed giving pileus a
finely scurfy appearance in centre, aggregated towards margins, background colour
buff with faint violaceous tints, fibrils dark brown to brownish black in centre,
paling towards margins, margins often dentate to lacerate with age. Cuticle
composed of unspecialised, repent, interwoven, thin-walled, clamped hyphae 7-13
µm diam, with dark brown contents and often roughened walls near surface. LAMELLAE:
adnexed to adnate, distant, intermixed, thick, to 5 mm deep, pallid violaceous,
often turning buff with age, glaucous. STIPE: 2-7 cm long, ± equal or slightly
expanded basally, 1.5-3 mm diam., tough, dry, hollow, longitudinally fibrillose-striate,
pallid, violaceous when young, becoming buff from base upwards at maturity,
finally entirely buff except for violaceous tints at extreme apex; flesh concolorous
with exterior; basal mycelium pallid violaceous.
SPORES : spore print white when fresh; spores
globose to subglobose, rarely broadly elliptical, apiculate, hyaline, inamyloid,
coarsely echinulate, 10-12.5-(13.5) µm diam. including spines, spines 1.5-2.5
µm long. HYMENIUM: basidia hyaline, clavate, 35-53 X 10-13.5 µm, 4-spored, sterigmata
to 9.5 µm long; paraphyses simple or irregularly and sparingly branched apically.
HYMENOPHORAL TRAMA : regular, composed of tinted, parallel-interwoven, long-celled
hyphae; clamp connections present. CONTEXT OF PILEUS: thin, pallid, violaceous,
turning buff at maturity. SMELL AND TASTE: not distinctive. CHEMICAL CHARACTERS:
unknown. Habitat: Gregarious to caespitose under Nothofagus. Notes: Laccaria fibrillosa is one of the two species described by Stevenson (1964) under L. masonii,
and is characterised by the typically umbonate pileus covered with dark, radially
arranged fibrils. The conspicuous violaceous colour of young fructifications
rapidly disappears with age. L. fibrillosa is found in Nothofagus
dominated habitats.
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