Pospiviroid
Pospiviroid is a genus of ssRNA viroids that infects plants, most commonly tubers. It belongs to the family Pospiviroidae.The first viroid discovered was a pospiviroid, the PSTVd species (potato spindle tuber viroid). Taxonomy
Pospiviroid has 10 virus species

References

External links
 ICTV Report: Pospiviroidae

Viroids
Virus genera