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Microscopic structure of Steccherinum aggregatum Hjortstam & Spooner (drawn from Wei 1937 ). a. Basidiospores; b. Basidia and basidioles; c. Cystidia; d. Encrusted skeletocystidia; e. Hyphae from trama; f. Hyphae from subiculum.
Source publication
Two lignicolous fungi, Steccherinum aggregatum and S. hydneum, are newly recorded from China. The former species is similar to S. queletii and S. albofibrillosum, but it is distinguished by having smaller and more ellip-soid basidiospores. S. hydneum is easily confused with resupinate specimens of S. ochraceum, but spores of S. hydneum are subglobo...
Context in source publication
Context 1
... aggregatum Hjortstam & Spooner, Kew Bulletin 45: 311. 1990. (Fig. 1) Fruitbody. Basidiocarps annual, resupinate, up to 3 cm long and 2 cm wide, tightly adnate; hymenophore odontioid with short spines (aculei), hymenophore between the aculei smooth and slight darker than aculei; spines scattered to crowded, fawn colored, subulate, terete or somewhat flattened, simple or conflu- ent, rigid when dry, up to ...
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The group of corticolous Mycena in Styria and a key to their European species. — Five corticolous Mycena species are discussed and a key to European corticolous Mycena species with ± globose spores is given.
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Citations
... Steccherinum punctatum is similar to S. hydneum Rick ex Maas Geest., S. tenuispinum and S. yunnanense in having leathery hymenophore. However, S. hydneum differs from S. punctatum by its longer aculei (2-3 mm) and wider basidiospores (4.2-5.0 × 3.6-4.1 µm; Yuan and Dai, 2005b); S. tenuispinum differs from S. punctatum in having whitish to dirty-ochraceous hymenial surface and narrower basidia (12-24 × 3.5-4.8 µm; Spirin et al., 2007); S. yunnanense differs in its fimbriate margin and shorter basidia (10.5-15 × 5-6 µm; Dong et al., 2022). ...
... and S. rubigimaculatum in the effuse-reflexed basidiomata. However, S. hydneum differs from S. subtropicum by its cinnamon buff hymenial surface and larger basidiospores (4.2-5.0 × 3.6-4.1 µm; Yuan and Dai, 2005b). Steccherinum oreophilum differs in its cottony hymenophore and larger basidiospores (5-6.5 × 3-3.2 µm; Bernicchia and Gorjoń, 2010); S. rubigimaculatum differs in having rust hymenial surface and longer basidiospores (3.5-5 × 2.5-3.5 µm; Wu et al., 2021a); S. subtropicum resembles S. fragile, S. ochraceum and S. robustius (J. ...
The wood-inhabiting fungi play an integral role in wood degradation and the cycle of matter in the ecological system. They are considered as the “key player” in wood decomposition, because of their ability to produce all kinds of enzymes that break down woody lignin, cellulose and hemicellulose. In the present study, three new wood-inhabiting fungal species, Steccherinum fissurutum, S. punctatum and S. subtropicum spp. nov., collected from southern China, are proposed based on a combination of morphological features and molecular evidence. Steccherinum fissurutum is characterized by the resupinate, subceraceous basidiomata with cracked hymenophore, a monomitic hyphal system with clamped generative hyphae and cylindrical basidiospores; S. punctatum is characterized by the annual, punctate basidiomata with leathery hymenophore, cylindrical, strongly encrusted cystidia and ellipsoid basidiospores (3.6–4.5 ×2.6–3.4 µm); S. subtropicum is characterized by its effuse-reflexed basidiomata, a odontioid hymenophore with pink to lilac hymenial surface and ellipsoid basidiospores measuring as (2.8–3.4 × 2.0–2.7 µm). Sequences of ITS and nLSU rRNA markers of the studied samples were generated, and phylogenetic analyses were performed with maximum likelihood, maximum parsimony, and Bayesian inference methods. The ITS+nLSU analysis of the family Steccherinaceae indicated that the three new species clustered into the genus Steccherinum. Based on further analysis of ITS+nLSU dataset, the phylogenetic analysis confirmed that S. subtropicum was sister to S. enuispinum; S. fissurutum formed a monophyletic lineage; S. punctatum grouped with a clade comprised S. straminellum and S. ciliolatum.
... Steccherinum punctatum is similar to S. hydneum Rick ex Maas Geest., S. tenuispinum and S. yunnanense in having leathery hymenophore. However, S. hydneum differs from S. punctatum by its longer aculei (2-3 mm) and wider basidiospores (4.2-5.0 × 3.6-4.1 µm; Yuan and Dai, 2005b); S. tenuispinum differs from S. punctatum in having whitish to dirty-ochraceous hymenial surface and narrower basidia (12-24 × 3.5-4.8 µm; Spirin et al., 2007); S. yunnanense differs in its fimbriate margin and shorter basidia (10.5-15 × 5-6 µm; Dong et al., 2022). ...
... and S. rubigimaculatum in the effuse-reflexed basidiomata. However, S. hydneum differs from S. subtropicum by its cinnamon buff hymenial surface and larger basidiospores (4.2-5.0 × 3.6-4.1 µm; Yuan and Dai, 2005b). Steccherinum oreophilum differs in its cottony hymenophore and larger basidiospores (5-6.5 × 3-3.2 µm; Bernicchia and Gorjoń, 2010); S. rubigimaculatum differs in having rust hymenial surface and longer basidiospores (3.5-5 × 2.5-3.5 µm; Wu et al., 2021a); S. subtropicum resembles S. fragile, S. ochraceum and S. robustius (J. ...
The wood-inhabiting fungi play an integral role in wood degradation and the cycle of matter in the ecological system. They are considered as the “key player” in wood decomposition, because of their ability to produce all kinds of enzymes that break down woody lignin, cellulose and hemicellulose. In the present study, three new wood-inhabiting fungal species, Steccherinum fissurutum, S. punctatum and S. subtropicum spp. nov., collected from southern China, are proposed based on a combination of morphological features and molecular evidence. Steccherinum fissurutum is characterized by the resupinate, subceraceous basidiomata with cracked hymenophore, a monomitic hyphal system with clamped generative hyphae and cylindrical basidiospores; S. punctatum is characterized by the annual, punctate basidiomata with leathery hymenophore, cylindrical, strongly encrusted cystidia and ellipsoid basidiospores (3.6–4.5 ×2.6–3.4 µm); S. subtropicum is characterized by its effuse-reflexed basidiomata, a odontioid hymenophore with pink to lilac hymenial surface and ellipsoid basidiospores measuring as (2.8–3.4 × 2.0–2.7 µm). Sequences of ITS and nLSU rRNA markers of the studied samples were generated, and phylogenetic analyses were performed with maximum likelihood, maximum parsimony, and Bayesian inference methods. The ITS+nLSU analysis of the family Steccherinaceae indicated that the three new species clustered into the genus Steccherinum. Based on further analysis of ITS+nLSU dataset, the phylogenetic analysis confirmed that S. subtropicum was sister to S. enuispinum; S. fissurutum formed a monophyletic lineage; S. punctatum grouped with a clade comprised S. straminellum and S. ciliolatum.
... Steccherinum subglobosum H.S. Yuan & Y.C. Dai (Yuan and Dai 2005a) 442. Steccherinum subulatum H.S. Yuan & Y.C. Dai (Yuan and Dai 2005a) ...
Corticioid fungi are one of the major groups of wood-inhabiting fungi, and they are mainly confined to the orders Corticiales,
Trechisporales and Atheliales among Basidiomycetes. Hydnoid fungi are aphyllophoroid fungi with spine- or tooth-like hymenophore,
and most species of them are in the orders of Russulales and Thelephorales. Many hydnoid fungi are wood-inhabiting, but some
of them are mycorrhizas. Corticioid fungi and many hydnoid fungi have a similar ecology in forest ecosystems. The current
knowledge of corticioid and hydnoid fungi in China is summarized, and totally 506 species are listed alphabetically. A new
species, Stereum lithocarpi, is described and illustrated. Two species, Dichostereum boreale and Thanatephorus fusisporus, are new to Chinese fungal flora, and a condensed description of these species is given.
KeywordsTaxonomy–Wood-decaying fungi
... Until now around 40 species have been found in the genus. Eleven species of Steccherinum have previously been recorded from China (Kotiranta & Mukhin 1998, Yuan & Dai 2005, which is certainly an underestimate of the diversity of Steccherinum in China including huge boreal, temperate, and subtropical areas. ...
Steccherinum subglobosum and S. subulatum are described as new species, and illustrations and descriptions of the two species are supplied. S. subglobosum is characterized by effused-reflexed basidiocarps with duplex context, both leptocystidia and skeletocystidia, hyphal pegs, and subglobose basidiospores. The characteristics of S. subulatum are resupinate to effused-reflexed basidiocarps, grayish pink spines, subulate skeletocystidia, and broadly ellipsoid basidiospores.
Corticioid fungi are one of the major groups of wood-inhabiting fungi, and they are mainly confined to the orders Corticiales, Trechisporales and Atheliales among Basidiomycetes. Hydnoid fungi are aphyllophoroid fungi with spine- or tooth-like hymenophore, and most species of them are in the orders of Russulales and Thelephorales. Many hydnoid fungi are wood-inhabiting, but some of them are mycorrhizas. Corticioid fungi and many hydnoid fungi have a similar ecology in forest ecosystems. The current knowledge of corticioid and hydnoid fungi in China is summarized, and totally 506 species are listed alphabetically. A new species, Stereum lithocarpi, is described and illustrated. Two species, Dichostereum boreale and Thanatephorus fusisporus, are new to Chinese fungal flora, and a condensed description of these species is given.
Steccherinum cremicolor and S. elongatum are described and illustrated as new species from Taiwan. Steccherinum cremicolor is characterized by strictly resupinate basidiocarps, a fimbriate margin, short spines, generative hyphae dominating in the
trama and subiculum, encrusted skeletocystidia, and ellipsoid basidiospores. Steccherinum elongatum has strictly resupinate and membranaceous basidiocarps, bearing fairly long spines, generative hyphae-dominated subiculum,
elongated skeletocystidia, and ellipsoid to subglobose basidiospores.
