Boletales » Boletaceae

Jimtrappea

Jimtrappea T.W. Henkel, M.E. Sm. & Aime, in Smith et al., IMA Fungus 6(2): 305 (2015)

 

Etymology: The genus is named in honour of Dr. James “Jim” Trappe, the world’s foremost authority on sequestrate fungi.

 

Diagnosis: Distinguished from other Boletaceae by a combination of the following characters: Basidiomata hypogeous to partially emergent, sequestrate, subglobose to ovate. Peridium off-white, unchanging, glabrous, thin. Gleba variously pink at maturity, unchanging, moist, loculate. Columella short, pad-like, with short sterile veins. Basidiospores statismosporic, subfusiform, smooth, pinkish to reddish brown, inamyloid, pedicellate. Basidia clavate. Hymenial cystidia cylindrical, lanceolate or ventricose, hyaline in KOH, dextrinoid in Melzer’s solution. Clamp connections absent.

 

Index Fungorum number: IF812359

 

Type species: Jimtrappea guyanensis T.W. Henkel, M.E. Sm. & Aime 2015, in Smith et al., IMA Fungus 6(2): 305 (2015)

 

Key reference:

Smith, M. E., Amses, K. R., Elliott, T. F., Obase, K., Aime, M. C., & Henkel, T. W. (2015). New sequestrate fungi from Guyana: Jimtrappea guyanensis gen. sp. nov., Castellanea pakaraimophila gen. sp. nov., and Costatisporus cyanescens gen. sp. nov. (Boletaceae, Boletales). IMA fungus, 6(2), 297–317.

 

Recent Genus

Dextrinocystidium
Amylofungus
Phallobata

Recent Species

Dextrinocystidium sacratum
Amylofungus corrosus
Phallobata alba