Phylum:Basidiomycota >> Class: Basidiomycetes >>  Order: Hymenochaetales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Inonotus rodwayi

Inonotus rodwayi D.A. Reid, Kew Bull. 12: 139. 1957..

 Description: Basidiocarp annual, pileate, usually imbricate. Pileus dimidiate or semicircular, projecting up to 12 cm, 15 cm wide and 3 cm thick at base. Pileal surface grayish brown, rough to glabrous, bearing indistinctly concentric zones; margin sharp. Pore surface umber brown to dark brown; pores angular, 2–4 per mm, dissepiments thin, lacerate. Cuticle fairly thin, brown, ca. 0.5 mm thick. Context umber brown, corky, indistinctly zonate, glancing, up to 2 cm thick. Tubes golden brown, distinctly paler contrasting with pore surface, corky, up to 10 mm long. Hyphal system monomitic; all septa without clamp connections; tissues darkening but otherwise unchanged in KOH. Generative hyphae of context pale yellowish to brown, thin- to thick-walled with a wide lumen, occasionally branched, frequently septate, rarely interwoven, 5–8μm diam. Tramal hyphae of tubes colorless to pale yellowish or brownish, thin- to fairly thick-walled, occasionally branched, frequently simple septate, parallel along the tubes, more or less agglutinated, 3–5μm diam. Hyphoid setae prominent, dark brown, distinctly thick-walled with a narrow or wide lumen, terminally pointed, a few hundreds of μm long, 8-15μm diam. Hymenial setae occasionally present, ventricose, dark brown, thick-walled, 17-50 × 5-10 μm; basidia subclavate, quite often with a stalked base, with four sterigmata and a simple basal septum, 15–25 × 7-8.5 μm; basidioles in shape similar to basidia, but smaller. Basidiospores ellipsoid, yellowish brown, thick-walled, smooth, IKI–, moderately CB+, 7–8.5 (–9.1) × (5.1–) 5.2–6.5 (–7) μm, L = 7.76 μm, W = 6.00 μm, Q = 1.29 (n = 30/1). Spores measured from specimen Wu 9808-3.

Taiwan. Taichung: National Museum of Natural Science, alt. 50 m, on knot of trunk of living Delonix regia, Aug 1998, Wu 9808-3 (TNM, H); 16 Aug 1999, Wu 9908-1 (TNM).

 Habitat: null

Australia, New Zealand (?), Taiwan.


Wu, SH. & Dai, YC. 2001.


S. H. Wu

 Note: Inonotus rodwayi is related to I. patouillardii, and the two species share hyphoid setae and ellipsoid, thick-walled and colored spores. However, basidiocarps of I. patouillardii has a blunt margin, and especially lack true hymenial setae. It is noted that Buchanan and Ryvarden (2000) suggested specimens of Inonotus glomeratus (Peck) Murrill, sensu G. Cunn. recorded from New Zealand, may represent the same with I. rodwayi.