Name requested: Suillus placidus

	Mycologia 51 (4): 564, 568. 53 (3): 230, 231, 232. 56 (4): 625. 59 (5): 917. 75 (2): 235. 78 (3): 325, 326, 328, 329.
	Mycology and Phytopathology [as Микология и Фитопатология] 2 (4): 285, 287, 288, 289. 3 (2): 126, 127, 128, 129, 130. 5 (1): 86. 5 (2): 184, 185, 186. 11 (3): 178.
	Mycotaxon 18 (2): 460, 468, 474. 87: 269.
	Persoonia 7 (2): 317.
	Sydowia 12 (1-6): 389, 390, 398. 15 (1-6): 166. 21 (1-6): 213.

Homotypic synonym: Boletus placidus

	Mycologia 25 (3): 231, 232. 26 (4): 353. 27 (3): 326. 28 759 (1): 14. 30 (4): 479. 31 (6): 703. 32 (4): 495, 496, 496, 497, 497, 498, 499. 40 (2): 205.
	Persoonia 7 (2): 317.