Rubroboletus Kuan Zhao et Zhu L. Yang 2014
Creators: name: Zhao, Kuan
name: Wu, Gang
name: Yang, Zhu L.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Boletales
Boletaceae
Rubroboletus

description: Key to the species of Rubroboletus  1 Pileus shiny when dry and strongly viscid when wet; pileal surface turning dark blue when bruised.............................................2  
1 Pileus not shiny when dry, only slightly viscid when wet; pileal surface turning dark red or unchanging when bruised................3  
 2 Pileal surface scarlet to tinged ochraceous when mature; surface of the hymenophore blood red to dark red when mature; context pale yellow; in Europe, also reported from North and Central America........................................................................... R. dupainii   
 2 Pileal surface blood red to dark red when mature; surface of the hymenophore orange red when mature; context whitish to cream-colored; in East Asia............................................................................................................................................ R. latisporus   
3 Pileal surface glabrous; spores subfusiform, with a conspicuous suprahilar depression; in North and Central America and Europe............................................................................................................................................................................................................4  
 3 Pileal surface felty-tomentose; spores ovoid-ellipsoid, with an inconspicuous suprahilar depression; in East Asia.......... R. sinicus   
4 Context yellowish to pale yellow when mature; stipe club-shaped or sub-cylindrical.....................................................................5  
 4 Context whitish to white when mature; stipe usually strongly bulbously swollen at the base.......................................... R. satanas   
5 Both the context of the cap and the stipe becoming blue when injured............................................................................................6  
 5 Context of the cap becoming blue but that of the stipe unchanging when injured.................................................. R. rhodoxanthus   
6 Pileal surface unchanging when bruised; odor of hey or not distinct; taste slightly acid.................................................................7  
 6 Pileal surface turning dark red when bruised; odor of overripe fruit; taste sweet............................................... R. rhodosanguineus   
 7 Stipe covered with red to dark red reticula; odor of hey; in coniferous forests, such as Picea spp. and Abies spp.......................................................................................................................................................................................................... R. rubrosanguineus   
 7 Stipe covered with pink reticula; odor not distinct; in broad-leaved forests, such as Quercus spp......................... R. pulchrotinctus
description: Published as part of Zhao, Kuan, Wu, Gang & Yang, Zhu L., 2014, A new genus, Rubroboletus, to accommodate Boletus sinicus and its allies, pp. 61-77 in Phytotaxa 188 (2) on page 72, DOI: 10.11646/phytotaxa.188.2.1, http://zenodo.org/record/5147157