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Page number:93 
Remarks (internal):The collection listed above for West Pakistan was recorded by LLOYD under the name Hydnum olidum (1917, Lett. 65: 4, 8), but it should be pointed out that there are two collections from Lahore under that name, the other being Phellodon niger, see there.
LLOYD also recorded the present species from Japan, once as Hydnum aurantiacum (1914, Lett. 51: 4), the second time as "Hydnum (should be renamed)" (1915, Lett. 56: 5, 8), a species he considered quite close to H. aurantiacum of Europe. The first collection gives but a poor idea of the species, although there can be no doubt as to its identity. I compared the spores with those of a North American gathering. The second collection consists of several small, beautifully developed, and excellently preserved specimens of H. earlianum and three much broken specimens of H. auratile.
Lloyd 4905 comprizes a second fungus, which with some doubt is referred to H. humidum, see there.
A partial redescription of H. earlianum was given on an earlier occasion (MAAS GEESTERANUS, 1964a: 151), mainly based on the excellent collections in Coker's herbarium. Banker's description, it should be pointed out once again, gives an incomplete impression since it was drawn up after old, nearly decayed material.
HARRISON (1961: 36) was of the opinion that H. earlianum "is a synonym of Hydnellum complicatum Banker." This is an error, but for an explanation, compare the misapplied names. Later HARRISON (1968: 230) corrected his view in so far as he restored H. earlianum as a species of its own, but he was silent about H. complicatum.
A noteworthy character of H. earlianum is the fragility of the tomentum of the pileus when dry: it clings to the fingers as an orange dust when handled. HARRISON's expression (1968: 230) aptly describes this character "as though dusted with orange powder." The feature is lost, however, once the tomentum is collapsed in old material.
 
Description type:Non-original description 
Description:HYDNELLUM EARLIANUM Banker-Figs. 125-128, Pl. III, fig. 4
MISAPPLIED NAMES: Hydnellum aurantiacum sensu Coker and Hydnellum complicatum sensu Coker apud Coker & Beers, Stip. Hydn. east. U.S. 67, 69. 1951 (see MAAS GEESTERANUs, 1964a: 151).
Basidiomes simple or coalescent to form complex groups. Pileus up to 40 mm across, depressed to infundibuliform, smooth or somewhat colliculose or radiately uneven, uniformly plushy, then tomentose to radiately fibrillose, with age glabrescent in places, pale sulphur yellow in the younger parts, gradually passing into dingy orange or orange-brown, occasionally with an inconspicuous concentric zone of a deeper colour, finally dull dark brown. Stipe 10-17 x 4-7 mm, tapering downwards, sharply delimited from the abruptly swollen base, up to 11 mm, tomentose, becoming matted and shiny with age, orange-yellow, dingy orange to orange-brown, finally dull brown to blackish. Spines up to 2 mm long, decurrent, crowded, subulate, cream to pale sulphur yellow when immature, with age becoming tawny. Context of the pileus not clearly duplex, zoned only in the harder part, orange-yellow near the margin, orange elsewhere, passing into reddish orange in the stipe, faded to drab orange-brownish when old; context of the stipe duplex in the basal portion. A thin slice of the context immediately staining olive green in KOH solution.
Context of the pileus monomitic. Generative hyphae 2.7-5.4 µm wide, not inflating, thin-walled or with slightly thickened cell-walls, branched, septate, without clamp-connections. Context of the spines similar, hyphae somewhat narrower. Basidia 26-31 x 6-7 µm, clavate without basal clamp, 4-spored. Sterigmata 2.7-3.6 µm long. Spores 5.4-5.8 x 3.6-4 µm, of irregular outline, tubercular (tubercles fairly numerous, prominent, somewhat angular to exsculpate), brownish, with oblique apiculus. Cystidia none.
 
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