Phylum:Basidiomycota >> Class: Basidiomycetes >>  Order: Polyporales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Hypochnicium globosum

Hypochnicium globosum Sheng H. Wu, Acta Bot. Fennica 142: 110. 1990.

 Description: Basidiocarp effuse, ±adnate, farinaceous-ceraceous when young, crustaceous and tough when old, 60-200 µm thick in section. Hymenial surface Ivory Yellow or Cream Color, smooth when young, slightly tuberculate when old, cracked when old; margin concolorous, rather determinate or thinning, pruinose, sometimes recurved. Hyphal system monomitic; hyphae nodose-septate. Subiculum uniform, composed of basal layer, with compact texture, 10-80 µm thick; hyphae horizontal, colorless, rather distinct, straight, ± agglutinated, 3-6 µm diam., thin- or slightly thick-walled. Hymenial layer with rather compact texture, thickening; hyphae ± vertical, colorless, indistinct, ± agglutinated, tortuous, 1.5-3 µm diam., thin-walled. Hymenium and adjacent subhymenium with IKI brownish and CB+ reactions. Cystidia lacking. Basidia utriform, 30-44 × 9.5-11.5 µm, with two to four sterigmata. Basidiospores obovate or globose, smooth, with 1-2 µm thick walls, sometimes guttulate, (9-) 9.7-l 1.5 (-12) × 8.5-10 (-10.5) µm, IKI-, CB-.

Taiwan. Miaoli: Taian Hsiang, Kuanwu, 1,900 m, on twig, 24 Aug 1988, Wu 880824-15 (holotype: H; isotypus: TNM). Taiwan. Miaoli: Taian Hsiang, Kuanwu, alt. 1,900 m, on fallen twig of Prunus campanulata, 24 Aug 1988, Wu 880824-32 (H, TNM). Nantou: Yushan National Park, between Kuankao and Patungkuan, alt. 2,700 m, on bark of unknown tree, 27 Jul 1988, Wu 880727-3 (H, TAA, TNM).

 Habitat: null



Wu, SH. 1990.


S. H. Wu

 Note: The placement of this species in the genus Hypochnicium may give rise to discussion, because the walls of its basidiospores are negative in Cotton Blue, which disagrees with the generic character of cyanophilous basidiospores. However, the spore wall thickness and the general characters of the species agree with Hypochnicium, and the spore wall cyanophily may possibly be of minor importance to the definition of this genus. The species is characterized by the compact texture of the Basidiocarp, combined with a distinct basal layer, and by obovate or globose basidiospores with thick acyanophilic walls.