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Literature:
 
Page number:31 
Remarks (internal):LLOYD listed the present species from Japan as Hydnum melaleucum (1915, Lett. 56:5) but I failed to find the material, and as H. pygmaeum (1922:1107). He also recorded the species as having been collected by J. Wilson in Australia (1917, Lett. 65: 6), but there are two collections under that name, one (No. 4902) being P. melaleucus all right, while the other (No. 26216) represents P. niger.
The Australian material collected by G. A. Crichton is referred here, but with considerable doubt, since the base of the stipe is thickly covered in coarse reddish brown fibers, a feature unknown to me to occur in P. melaleucus.
IMAZEKI & HONGO (1968: pl. 49 fig. 276) gave some illustrations under the name Calodon graveolens, but I am unable to accept these as representing P. melaleucus.
 
Description type:Non-original description 
Description:PHELLODON MELALEUCUS (Sw. apud Fr. ex Fr.) P. Karst. -Figs. 31-33
Basidiomes simple to confluent. Pileus up to about 25 mm across, orbicular, plano-convex, the centre depressed to umbilicate, thinly tomentose-fibrillose, soon collapsed to form a shiny or polished surface made up of adnate or slightly raised radial fibrils, with a few concentric corrugations, the centre asperate to lamellate-scaly, grey-brown to black-brown or blackish-olive, with indistinct colour zones, the margin long remaining whitish or greyish. Stipe 10-20 x 1-4 mm, simple or connate, more or less central, straight to flexuous, terete to flattened, fibrillose, shiny, at times somewhat cottony at the base, concolorous with the pileus or darker. Spines up to about 1 mm long, little decurrent, crowded, subulate, whitish. Context of the pileus up to 1 mm thick in the centre, not duplex, indistinctly zoned, light to dark grey-brown. Context of the stipe similar or darker.
A thin slice of the grey-brown context staining olive green in KOH solution, the darker context staining blue-green. Odour faintly of fenugreek. Context of the pileus monomitic. Generative hyphae 2.7-4.5 µm wide, not inflating, thin-walled, branched, septate, without clamp-connections. Context of the spines similar, hyphae narrower. Basidia 21-27 x 5-6 µm, clavate, without basal clamp, 4-spored, with sterigmata up to 3.6 µm long. Spores 3.6-4 x 3.1-3.6 µm (measured without spinulae), subglobose, spinulose (spinulae up to c. 0.5 µm long), colourless, with oblique apiculus.
 
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