Rubroboletus sinicus

Rubroboletus sinicus is a bolete fungus in the family Boletaceae. It is found in China. The species was first described by Wei Fan Chiu as "Boletus sinicus" in 1948, and transferred to the genus "Tylopilus" in 1979 by Fanglan Tai. In 2014, the genus "Rubroboletus" was created to accommodate this and allied species.
The fruit bodies of "R. sinicus`" have a brown, pulvinate (cushion-shaped) cap measuring in diameter that is covered with fibrous scales. The tubes on the cap underside are up to long, and stain blue when cut or injured. The pores are red and small, up to 0.5 mm across. The flesh is initially white to yellowish, but stains blue with injury. Spores are ellipsoid and measure 7.5–11 by 4.5–5.5 µm. The type collection was obtained from a market in Kunming in July, 1938.