 Phylum：Basidiomycota >> Class： Basidiomycetes >> Order： Boletales |
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 BCRC Number： |
NO BCRC Number! | |||
| Scientific Name： |
Boletus tubulus | |||
| Author： |
Boletus tubulus Zang & C. M. Chen, Fung. Sci. 13: 23. 1998. |
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| Description： |
Pileus 8-12 cm broad, obtusely convex when young, becoming plano-convex to plane when mature. Surface dry, pale brownish, sombre brown, finally at times dull olivaceous, glabrescent, often rimose or lacunose. Flesh bright yellow to yellowish, unchanging. Hymenophore adnate-depressed, deep yellow. Hymenium whitish when young becoming whitish yellow. Stipe often tough and hard, striate to glabrous, with a very fine reticulum that is light brown to yellowish brown. Basidiospores 13-15.6 × 5.5-6.5 μm, ovoid, subellipsoid. Basidia 30-40 × 10-13 μm, clavate. Pleurocystidia 35-60 × 8-15 μm, fusiform or clavate. Cheilocystidia 39-55 × 6.5-9.5 μm, clavate. Mycelium yellowish. Tube-trama parallel with axis and interwoven. | |||
| Specimens： |
Taiwan, Nantou: Shanlinhsi, alt. 1800m, 3 Jun 1994, Huang HW. 830518. |
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| Habitat： |
In sylvis Rhododendron formosanum Hemsl.. | |||
| Distribution： |
Taiwan. |
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| References： |
Zang, M. 1991; Zang, M and Chen, CM. 1998. |
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| Provided： |
C. M. Chen |
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| Note： |
This new taxon was described to be placed in Sect. Boletus, Subsection Brevitubi (Zang, 1991). This fungus is distinguished by the short tubes, which suggest a close relationship with Boletus brevistubus Zang but the pale brown and olivaceous pileus, the spores 13-15.6 × 5.5-6.5 μm larger than Boletus brevistubus (6.5-10.4 × 5.2-6 μm ) make it distinct. | |||