Phylum:Basidiomycota >> Class: Basidiomycetes >> Order: Polyporales | ||||
BCRC Number: | NO BCRC Number! | |||
Scientific Name: | Hyphoderma microcystidium | |||
Author: | Hyphoderma microcystidium Sheng H. Wu, Acta Bot. Fennica 142: 77. 1990. |
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Description: | Basidiocarp effuse, adnate, farinaceous, 30-50 μm thick in section. Hymenial surface whit-ish, smooth, not cracked; margin concolorous, thinning, pruinose. Hyphal system monomitic; hyphae nodose-septate. Subiculum uniform, composed of basal layer, with compact texture, 5-12 µm thick; hyphae horizontal, colorless, agglutinated, 2.5-4 µm diam., slightly thick-walled. Hymenial layer with compact texture; hyphae ± vertical, colorless, indistinct, 1.7-3.5 µm diam., thin-walled. Crystal masses scattered in section. Cystidia of two kinds: (1) Lamprocystidia numerous, projecting or immersed, colorless, heavily encrusted for approximately apical halves, 17-32 × 7-10.5 µm (encrustation included), slightly thick-walled. (2) Leptocystidia variably abundant, projecting or immersed, apically covered with excreted material which dissolves in KOH, cylindrical, 20-65 × 8-13 µm, very thin-walled. Basidia subutriform, 18-25 × 6.5-7.5 µm, 4-sterigmate. Basidiospores narrowly ellipsoid, adaxially slightly concave, smooth, thin-walled, usually with oil-drops, 10-12.5 × 4-4.8 µm, IKI-, CB-. | |||
Specimens: | Taiwan. Nantou: Sun-Moon Lake, alt. 800 m, on culm of Poaceae, 26 Oct 1988, Wu 881026-31 (holotype: H; isotype: TNM). |
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Habitat: | null | |||
Distribution: | Taiwan. |
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References: | Wu, SH. 1990. |
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Provided: | S. H. Wu |
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Note: | Hyphoderma microcystidium is characterized by the presence of small lamprocystidia and very thin-walled leptocystidia, which are covered with excreted material at their apices. | |||