Rubroboletus is a genus of bolete fungi in the family Boletaceae. It was circumscribed by Chinese mycologists in 2014 with Rubroboletus sinicus as the type species. Species are characterized by having a reddish cap surface, yellow tubes on the underside of the cap, and an orange-red to blood-red pore surface. Pinkish to red spots (reticula) are present on the stipe surface, and a bluish color change occurs when the bolete flesh is injured. Rubroboletus mushrooms have an olive-brown spore print, and produce smooth spores. Eight species were included in the original circumscription (seven new combinations and one new species); five were added in 2015, and another in 2017.
Several species in this genus are poisonous, while the edibility of others remains entirely unknown. Nevertheless, the type species is occasionally sold for consumption in markets in Yunnan, China.
Species Image Name Year Edibility DistributionRubroboletus demonensis Vasquez, Simonini, Svetash., Mikšík & Vizzini2017Southern EuropeRubroboletus dupainii 2014 (1902) North Carolina, and then from Iowa, Europe Rubroboletus eastwoodiae 2015 (1910) West Coast of the United States Rubroboletus esculentus 2017 Sichuan Province in southwestern China Rubroboletus haematinus 2015 (1976) western United States Rubroboletus latisporus 2014 China (Yunnan) Rubroboletus legaliae 2015 (1969) Southern England, and Europe Rubroboletus lupinus 2015 (1838) Europe Mediterranean Rubroboletus pulcherrimus 2015 (1976) United States (New Mexico and California to Washington) Rubroboletus pulchrotinctus 2014 (1985) central and southern Europe. Rubroboletus rhodosanguineus 2014 (1998) North America. Rubroboletus rhodoxanthus 2014 ¨(1836) southern Europe Rubroboletus satanas 2014 (1831)Europe Rubroboletus sinicus 2014 (1948) China.
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