Shaggy-stalked bolete 
Slate Bolete 
Slimy spike-cap 
Slippery jack 
Slippery Jill 
Sour Cap Suillus 
Stalked puffball-in-aspic 
Stubby-stalk 
Suillus caerulescens 
Suillus cavipes 
Suillus collinitus 
Suillus cothurnatus 
Suillus grevillei 
Suillus hirtellus 
Suillus mediterraneensis 
Suillus ponderosus 
Suillus punctatipes 
Suillus sibiricus 
Suillus tomentosus 
Suillus tridentinus 
Summer Bolete 
Tapinella panuoides 
Two-colored Bolete 
Tylopilus badiceps