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Page number:157 
Description type:Non-original description 
Description:Pleurotus sciadium (Kalchbr. & MacOwan) Sacc. in Syll. Fung. 5: 372 (1887). Agaricus (Pleurotus) sciadium Kalchbr. & MacOwan in Grevillea 9: 112 (1881). Plate 25G
"Pilaus carnosus, lateralis, postice emarginatus, flabelliformis, confluendo multiplex, lobatus, 4-7 centm. latus, basi in stipitem productus vel basi subangustata sessilis, floccosus, albo-alutaceus; stipes solidus, vix polli caris, basi albo-floccosus; lamellae decurrentes, passim furcatae, confertae, angustae, albae.
In lignis putrid. mont. Boschberg, alt. 4000 (MacOw. et Tuck, No. 1243)." "Pilaus fleshy, lateral, emarginate behind, flabelliform, confluent, multiplex, lobate, 4-7 cm wide, prolonged at the base into a stipe, or more or less narrowed sessile at the base, floccose, white-alutaceous; stipe solid, scarcely an inch long, white floccose at the base; lamellae decurrent, here and there furcate, crowded, narrow, white.
On rotting wood. Mt. Boschberg, alt. 4000 ft. (MacOwan & Tuck, No. 1243)."
TYPE: In SAM and K.
Sporophores spathulate, with narrowed flattened strap-like base, and crowded lamellae. Structure of Pileus: surface of tangled, thin-walled, hyaline, clamp-bearing hyphae forming a tomentum, below which is a zone of narrow, horizontal, gelatinized hyphae, followed by the flesh, and then another
gelatinized zone above the gills. Pleuro- and Cheilocystidia present as elongated, thick-walled, fusiform or lanceolate metuloids, which are often encrusted at the apex. These organs, up to 100 µm long, and 8-15 µm wide, stain more deeply in Melzer's solution than the surrounding tissue. Spores 6,0-6,5 x 3,0-3,2 µm , exceedingly scanty and mostly collapsed; those observed were thin-walled, hyaline and narrowly elliptic.
This fungus belongs in Hohenbuehelia Schulz. and is hereby so transferred as Hohenbuehelia sciadia (Kalchbr. & MacOwan) Reid, comb. nov. [Agaricus sciadium Kalchbr. & MacOw. in Grevillea 9:112 (1881)].
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