Name: Armillaria fuscipes Petch
Most Confident Observations:
Copyright © 2018 Liz Popich (Lizzie)
Version: 3
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First person to use this name on MO: Nathan Wilson
Editors: walt sturgeon, GALL Alain

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Rank: Species

Status: Accepted

Name: Armillaria fuscipes

ICN Identifier: missing

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Author: Petch

Citation: Ann. R. bot. Gdns Peradeniya 4: 299 (1909) / Petch, T. 1909. New Ceylon fungi. Annals of the Royal Botanic Gardens Peradeniya. 4:299-307


Domain: Eukarya

Kingdom: Fungi

Phylum: Basidiomycota

Class: Agaricomycetes

Order: Agaricales

Family: Physalacriaceae

Genus: Armillaria

Notes on Taxonomy: [Edit]

Brief Description: [See More | Edit]

Pileus up to 6 cm. diameter, at first broadly convex, then plane, margin recurved; centre obtusely umbonate with an encircling depressed zone, sometimes umbilicate; brown or yellow brown in the centre, becoming pale brown outwards, shading off to pure white in the outer half; centre corrugated; the central half covered with minute distant brown warts, elsewhere glabrous; margin striate. Flesh thin, white, turning brownish when cut.

Stalk up to 10 cm. long, usually almost horizontal at the base and then curving upwards, up to 9 mm. diameter at the base, attenuated upwards and 5 mm. diameter at the apex; blackish brown, clothed with grayish flocci, becoming paler and longitudinally fibrillose towards the ring; longitudinally striate and reddish above the ring; solid, outer layers dark brown in section, inner tissue brownish white; in clusters of six to nine, arising from a cushion-like mass, each stalk surrounded at the base by a narrow, white, tomentose ring.

Ring, near the apex, dependent, ample, rather thick and floccose.

Gills white, rather crowded, narrow (3-4 mm. broad), decurrent, attenuated outwards.

Spores white, oval, or subglobose, smooth, 6-8 × 5-7 µm.

On roots of Acacia decurrens, which it kills. Mycelium between the wood and bark of the host plant in reddish plates. Rhizomorphs, 2-3 mm. diameter, at first reddish, then black. Uda Pussellawa, Ceylon.

Descriptions: [Create]


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2016-04-25 10:31:23 CEST (+0200)
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