Boletales » Boletaceae

Costatisporus

Costatisporus T.W. Henkel & M.E. Sm., in Smith et al., IMA Fungus 6(2): 312 (2015)

 

Etymology: Costatus (L. adj. A) = ribbed or ridged and –sporus (L. adj. A) = –spored; in reference to the distinctively ridged ornamentation of the basidiospores.

Diagnosis: Distinguished from other Boletacaeae by a combination of the following characters: Basidiomata hypogeous to partially emergent, sequestrate. Peridium greyish yellow, staining dark blue, glabrous to subtomentose, thin. Gleba brown, unchanging, loculate, sterile veins absent. Basidiospores statismosporic, subglobose to oblong, light brown, inamyloid, with costate ornamentation of longitudinal ridges pole to pole, these entire or discontinuous, pedicel infrequent. Basidia clavate. Cystidia and clamp connections absent.

Index Fungorum number: IF812363

Type species: Costatisporus caerulescens T.W. Henkel & M.E. Sm. 2015, in Smith et al., IMA Fungus 6(2): 312 (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. 

 

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