All Species in Calicium
- Adequate Spike Lichen (Calicium adequatum)
- Spike Lichen (Calicium abietinum)
- Spike Lichen (Calicium adspersum)
- Spike Lichen (Calicium chlorosporum)
- Spike Lichen (Calicium corynellum)
- Spike Lichen (Calicium glaucellum)
- Spike Lichen (Calicium hyperelloides)
- Spike Lichen (Calicium lenticulare)
- Spike Lichen (Calicium leucochlorum)
- Spike Lichen (Calicium parvum)
- Spike Lichen (Calicium quercinum)
- Spike Lichen (Calicium salicinum)
- Spike Lichen (Calicium trabinellum)
- Spike Lichen (Calicium viride)