Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook 2001
![Fig. 106: Entoloma imbecille Hk (type); spores. © All rights reserved. [Image: AKG]](https://data.landcareresearch.co.nz/Image/AKG/SysPortalThumb)
![Entoloma aromaticum f. minima Hk. (holotype): a. carpophores. b. spores. c. cuticle. © All rights reserved. [Image: IEP]](https://data.landcareresearch.co.nz/Image/IEP/SysPortalThumb)
![Entoloma fragile Hk. (holotype): a. carpophores b. spores. c. cuticle. © All rights reserved. [Image: IF8]](https://data.landcareresearch.co.nz/Image/IF8/SysPortalThumb)
![Dried type specimen. Creator: Herb. PDD. © Landcare Research. [Image: L8V]](https://data.landcareresearch.co.nz/Image/L8V/SysPortalThumb)
![Dried type specimen. Creator: Herb. PDD. © Landcare Research. [Image: L8X]](https://data.landcareresearch.co.nz/Image/L8X/SysPortalThumb)
![Dried type specimen. Creator: Herb. PDD. © Landcare Research. [Image: L8Y]](https://data.landcareresearch.co.nz/Image/L8Y/SysPortalThumb)
![Fig. 106: Entoloma imbecille Hk (type); spores. © All rights reserved. [Image: AKG]](https://data.landcareresearch.co.nz/Image/AKG/SysPortalPreview)
![Entoloma aromaticum f. minima Hk. (holotype): a. carpophores. b. spores. c. cuticle. © All rights reserved. [Image: IEP]](https://data.landcareresearch.co.nz/Image/IEP/SysPortalPreview)
![Entoloma fragile Hk. (holotype): a. carpophores b. spores. c. cuticle. © All rights reserved. [Image: IF8]](https://data.landcareresearch.co.nz/Image/IF8/SysPortalPreview)
![Dried type specimen. Creator: Herb. PDD. © Landcare Research. [Image: L8V]](https://data.landcareresearch.co.nz/Image/L8V/SysPortalPreview)
![Dried type specimen. Creator: Herb. PDD. © Landcare Research. [Image: L8X]](https://data.landcareresearch.co.nz/Image/L8X/SysPortalPreview)
![Dried type specimen. Creator: Herb. PDD. © Landcare Research. [Image: L8Y]](https://data.landcareresearch.co.nz/Image/L8Y/SysPortalPreview)
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Details
Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook, New Zealand J. Bot. 39 305 (2001)
Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook 2001
Biostatus
Nomenclature
(E. Horak) E. Horak ex Segedin & Pennycook
E. Horak
Segedin & Pennycook
2001
305
ICN
NZ holotype (PDD 27041)
species
Entoloma imbecille
Classification
Synonyms
Associations
View full associations record
Descriptions
Holotype (PDD 27039); Isotype (Herb. HK. ZT 69/131): 'Xmas Village, Stewart Island, New Zealand; leg. Horak, 13.III.1969'.
Pileus 5-8 mm diam., conical or umbonate-plane, grey-beige, smooth, dry, hygrophanous. Lamellae (L 10-14, 13), adnexed or emarginate, exceeded by the margin of the pileus, whitish becoming pink, gill edge concolorous. Stipe 10-15 x 1 mm, cylindrical, coloured like pileus, white at the base, glabrous, fistulose, brittle. Taste and odor farinaceous.
Spores 6.5-7 x 5-5.5 µm, 5-6-angled. Basidia 25-30 x 8 µm, 4-spored. Cystidia none. Cuticle a cutis of repent, cylindrical hyphae (3-10 µm diam.), the thin-walled, not gelatinized membrane encrusted by brown pigment. Clamp connections lacking.
Spores 6.5-7 x 5-5.5 µm, 5-6-angled. Basidia 25-30 x 8 µm, 4-spored. Cystidia none. Cuticle a cutis of repent, cylindrical hyphae (3-10 µm diam.), the thin-walled, not gelatinized membrane encrusted by brown pigment. Clamp connections lacking.
On soil or rotten wood in forests (under Dacrydium cupressinum, Podocarpus s pp., Metrosideros spp.). New Zealand.
Differt a typo carpophoribus et sporis minoribus et lamellis adnexo-emarginatis.
Holotype (PDD 27041); Isotype (Herb. Horak 68/368): 'Pakawau Creek N of Collingwood, Prov. Nelson, N.Z.; leg. Horak, 7.V.1968'. - Herb. HK. ZT 69/147: 'Xmas Village, Stewart Island, N.Z; leg. Horak, 17.III.1969'.
Pileus 6-12 mm diam., convex at first becoming umbonate or campanulate, later also plane and sometimes subdepressed at centre, brown to beige, drying colours fading, glabrous or slightly fibrillose, striate, hygrophanous, dry. Lamellae (L 6-10, 1 3), adnexed, ventricose, whitish or beige turning pink, gill edge concolorous. Stipe 10-15 x 1-1.5 mm, cylindrical, coloured like pileus, glabrous, dry, fistulose, fragile. Odor and taste not distinctive.
Spores 6-7.5 x 5-6 µm, 5-angled. Basidia 25-36 x 8 µm, 4-spored. Cystidia absent. Cuticle a cutis of repent, cylindrical hyphae (8-12-18 µm diam.), membrane hyaline, thin-walled and encrusted by brown pigment. Clamp connections abundant.
Spores 6-7.5 x 5-6 µm, 5-angled. Basidia 25-36 x 8 µm, 4-spored. Cystidia absent. Cuticle a cutis of repent, cylindrical hyphae (8-12-18 µm diam.), membrane hyaline, thin-walled and encrusted by brown pigment. Clamp connections abundant.
On rotten debris ( of tree-fern,) or wood (of Dacrydium cupressinum). New Zealand.
Pileo 6-12 mm lato, ex convexo umbonato, aetate plano, usque ad subdepresso, brunneo siccitate pallidiori, glabro, striato, sicco. Lamellis adnato-emarginatis, brunneolis postea roseis, acie integra instructis. Stipite 10-15 x 1-1.5 mm, cylindraceo, pileo concolori, levi, sicco, fragili, fistuloso. Odore saporeque haud distincto. Sporis 6-7.5 x 5-6 µm, 5-angulatis. Basidiis 4-sporigeris. Cystidiis nullis. Epicute ex hyphis cylindraceis cutem formantibus, membrana hyalina pigmento brunneo incrustatis. Septis fibulatis. Ad detritum et lignum putridum. Novezelandia.
The small, fragile carpophores and the small 5-angled spores characterise E. fragile. Macroscopically it greatly resembles E. melleum Hk., but the spores of that fungus are considerably larger (8-10 x 6-7 µm).
Holotypus (PDD 27041): 'Collingwood, N.Z.: leg. Horak, 7.V. 1968'.
Material. - New Zealand: Nelson, Collingwood, Pakawau Creek, 7.V. 1968, leg. Horak (PDD 27041, holotype). - Stewart Island, Xmas Village, 13.III.1969, leg. Horak (PDD 27039, ZT 69/131). - Solomon Isl.: Guadalcanal, Mt. Gallego, 4.VII.1965, leg. Corner (ZT 79/48, RSS 566). - Same locality, 10.VII.1965, leg. Corner (ZT 79/49, RSS 659).
New Zealand (type), Solomon Isl.
Habitat. - On soil, rotten wood (Dacrydium sp.) or on rotting fern (Dicksonia sp.)
Illustrations. - Horak (1973:56).
The fragile and pale argillaceous carpophores, the earthy to farinaceous smell, the encrusted cuticular hyphae, the clamp connections on the septa, and the conspicuously small 5-angled spores are distinctive characters of E. imbecille. The material gathered on the Solomon Islands agrees in all essential details with the typic collections from New Zealand.
Taxonomic concepts
Entoloma aromaticum f. minimum E. Horak (1973)
Entoloma aromaticum f. minimum E. Horak (1973)
Entoloma aromaticum f. minimum E. Horak (1973)
Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook 2001
Entoloma aromaticum f. minimum E. Horak (1973)
Entoloma aromaticum f. minimum E. Horak (1973)
Entoloma aromaticum f. minimum E. Horak (1973)
Entoloma aromaticum f. minimum E. Horak (1973)
Entoloma fragile E. Horak (1973)
Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook 2001
Entoloma imbecille (E. Horak) E. Horak (1980)
Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook 2001
Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook (2001)
Entoloma imbecille (E. Horak) E. Horak (1980)
Entoloma imbecille (E. Horak) E. Horak (1980)
Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook 2001
Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook (2001)
Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook 2001
Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook (2001)
Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook 2001
Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook (2001)
Entoloma imbecille (E. Horak) E. Horak (1980)
Entoloma imbecille (E. Horak) E. Horak (1980)
Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook 2001
Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook (2001)
Entoloma imbecille (E. Horak) E. Horak (1980)
Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook 2001
Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook 2001
Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook (2001)
Rhodophyllus imbecillis E. Horak (1980) [1979]
Rhodophyllus imbecillis E. Horak (1980) [1979]
Entoloma imbecille (E. Horak) E. Horak ex Segedin & Pennycook 2001
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Metadata
e5e4cc89-7581-4912-8040-d56f67b96fd3
scientific name
Names_Fungi
7 July 2005
21 November 2022
