Author: Halling, Nuhn & Fechner
Citation: Mycologia 104: 955. 2012.
Sutorius is described as a new genus to accommodate Boletus robustus originally named illegitimately by C.C. Frost from eastern North America. The legitimate name, Boletus eximius, provided by C.H. Peck, has been used since Frost’s description for a dark purple to chocolate brown bolete with finely scaly stipe and reddish brown spore deposit. Equivocally placed in Leccinum or Tylopilus, phylogenetic analyses of genes encoding large subunit rRNA and translation elongation factor 1α confirm Sutorius as a unique generic lineage in the Boletaceae.
Purple brown to violet brown to chocolate brown, dry pileus. Flesh white with brownish lilac mottling. Pores violet brown to chocolate brown. Stipe equal to subclavate, dry, finely subsquamulose to finely scabrous-scissurate on a pale lilac ground or very nearly white; the scales a pinkish brown to pinkish lilac to violet brown or a dull brown. Spore reddish brown in deposit.
Created: 2012-07-30 13:45:59 PDT (-0700) by Darvin DeShazer (darv)
Last modified: 2019-07-15 19:05:45 PDT (-0700) by Roy Halling (royh)
Viewed: 104 times, last viewed: 2019-07-15 19:31:19 PDT (-0700)