Phylum:Basidiomycota >> Class: Basidiomycetes >> Order: Russulales | ||||
BCRC Number: | NO BCRC Number! | |||
Scientific Name: | Wrightoporia avellanea | |||
Author: | Basionym: Poria avellanea Bres. in V. H?hnel, K. Akad. Wiss. Math. Naturw. Klas. Denk. Schr. 83: 14. 1907.. Wrightoporia avellanea (Bres.) Pouzar, Ceska Mykol. 20: 173. 1966.. |
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Description: | Basidiocarp resupinate, effuse, consistency fairly soft, ± separable. Context up to ca. 400 μm thick in section. Hymenial surface woody yellow, poroid, not cracked; margin determinant, paler, filamentose. Pores ± angular, ca. 2 per mm; tubes slightly paler than the pore surface, up to 1.5 mm deep. Hyphal system dimitic; generative hyphae nodose-septate. Context fairly homogeneous, with fairly loose texture. Contextual generative hyphae colorless, 1.8-2.8 μm diam., thin-walled; skeletal hyphae fairly dominant, yellowish or slightly brown, 2-4 μm diam., with a distinct lumen, slightly dextrinoid. Trama with fairly loose texture. Subhymenium not thickening. Gloeocystidia numerous, tubular, ± flexuous, sometimes with several constrictions towards apices, colorless, up to ca. 300 μm long, 4-10 μm diam., thin-walled, with fairly homogeneous contents, SA+. Basidia utriform, 22-28 × 4-5 μm, 4-sterigmate. Basidiospores broadly ellipsoid, colorless, minutely aculeate, thin-walled, 3.8-4.5 (-5) × 2.8-3.3 (-3.6) μm (aculei excluded), amyloid. | |||
Specimens: | Taiwan. Nantou: Yushan National Park, Nanshilintao, alt.1,850 m, on branch of angiosperm, 13 Oct 1993, Wu 9310-17 (TNM). |
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Habitat: | null | |||
Distribution: | According to Gilbertson and Ryvarden (1987), this species is widespread, but rare, in the tropics. |
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References: | Wu, SH. 1996. |
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Provided: | S. H. Wu |
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Note: | The shape of basidia in members of Wrightoporia Pouzar has always been described as clavate (e.g., Gilbertson and Ryvarden, 1987). However, basidia of W. avellanea are here found to be utriform in shape. Careful study of basidial shape for other Wrightoporia species may aid delimitation of this genus. | |||