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Page number:95 
Remarks (public):The species is easily confused with A. ovinus because of its whitish colour, but is separated by growing in pine forests, and becoming chrome-orange-yellow on the pore surface when touched or bruised (citric yellow in A. ovinus). Microscopically the amyloid spores are diagnostic as A. ovinus has non-amyloid spores. 
Description type:Non-original description 
Description:Albatrellus subrubescens (Murr) Pouz. Fig. 27 - Ceska Mykol. 26:196. 1972. - Scutiger subrubescens Muff., Bull. Torrey Bot. Club 67:277. 1940. - Albatrellus similis Pouz.. Folia Geobot. Phytotaxon. 1:274-276, 1966.
Basidiocarps stipitate, single or confluent. pileus 3-7 cm in diam; upper surface pale buff. glabrous to minutely tomentose, smooth at first but becoming rugose or cracking and becoming squamulose on drying; pore surface greenish-yellow or with pale reddish-orange tints in some areas. the pores angular. 2-4 per mm, with thin dissepiments: context cream-coloured, drying to yellowish-buff. azonate, brittle and easily sectioned when fresh. rigid and difficult to section after drying; tube layer 1-2 mm thick, separated from context by a dark layer in dried specimens. strongly decurrent; stipe central to eccentric, 2-3 cm long and 0.7-1.5 cm in diam, with vinaceous to buff or pale reddish-orange or brownish-orange areas on dried specimens, minutely pubescent; taste distinctly bitter.
Hyphal system monomitic; contextual hyphae highly variable in diam, from 2-40 µm. with frequent branching. simple-septate. readily discernible in fresh specimens but becoming collapsed and agglutinated on drying. especially in the lower dark layer next to the tubes; tramal hyphae similar but smaller in diam and slightly amyloid in Melzer's reagent, becoming agglutinated on drying; gloeoplerous hyphae present; also some hyphae with thick-walled, expanded. amyloid apices.
Cystidia or other sterile hymenial elements absent.
Basidia clavate, 4-sterigmate, 18-25 x 6-7 µm, simple-septate at the base. Basidiospores subglobose to ovoid. usually flattened on one side, hyaline. smooth, distinctly amyloid in Melzer's reagent. with a small but prominent apiculus, 3.5-4.5 x 2.5-3.5 µm.
Type of rot. Terrestrial, apparently not a wood-rotting fungus.
Cultural characteristics and Sexuality. Unknown.
Substrata. On soil in pine forests, more rarely associated with Picea and in mixed forests. exceptionally in broad-leaved forests in Central Europe.
Distribution. Seems to follow Pinus north to the polar circle or even further on favourable calcareous localities, but rare in the oceanic areas along the west coast of the continent. North to Central parts of Norway and Sweden and northern part of Finland. Scattered through Central and Southern Europe.
 
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