Spores olive brown in deposit, alveolate-reticulate to reticulate or with pit-like perforations, extremely rarely rugulose and with crater-like pits, subfusoid, elongate-ellipsoid to short ellipsoid, lacking a suprahilar plage.
![fruticicola](https://sweetgum.nybg.org/science/projects/boletineae/wp-content/uploads/sites/6/2016/09/9811-15.jpg)
fruticicola
![cooloolae](https://sweetgum.nybg.org/science/projects/boletineae/wp-content/uploads/sites/6/2016/09/9446-8.jpg)
cooloolae
![young mandarinus](https://sweetgum.nybg.org/science/projects/boletineae/wp-content/uploads/sites/6/2016/09/rubropuncta-sem_thumb2.jpg)
young mandarinus
![young mandarinus](https://sweetgum.nybg.org/science/projects/boletineae/wp-content/uploads/sites/6/2016/09/rubropuncta-SEM_thumb.jpg)
young mandarinus
![japonicus](https://sweetgum.nybg.org/science/projects/boletineae/wp-content/uploads/sites/6/2016/09/japonica-SEM_thumb2.jpg)
japonicus
![japonicus](https://sweetgum.nybg.org/science/projects/boletineae/wp-content/uploads/sites/6/2016/09/japonica-SEM_thumb1.jpg)
japonicus
![ivoryi](https://sweetgum.nybg.org/science/projects/boletineae/wp-content/uploads/sites/6/2016/09/ivoryi-sem_thumb.jpg)
ivoryi
![ivoryi](https://sweetgum.nybg.org/science/projects/boletineae/wp-content/uploads/sites/6/2016/09/ivoru-SEM_thumb3.jpg)
ivoryi
![australis](https://sweetgum.nybg.org/science/projects/boletineae/wp-content/uploads/sites/6/2016/09/australis.jpg)
australis
![retisporus](https://sweetgum.nybg.org/science/projects/boletineae/wp-content/uploads/sites/6/2016/09/retispora-SEM_thumb2.jpg)
retisporus
![retisporus](https://sweetgum.nybg.org/science/projects/boletineae/wp-content/uploads/sites/6/2016/09/retispora-SEM_thumb1.jpg)