In Great Britain and/or Ireland:
Foodplant / feeds on
pycnidium of Phoma coelomycetous anamorph of Phoma polemonii feeds on Polemonium caeruleum

Foodplant / spot causer
amphigenous, loosely gregarious, immersed pycnidium of Phyllosticta coelomycetous anamorph of Phyllosticta polemonii causes spots on fading leaf of Polemonium caeruleum
Remarks: season: 7-8

Foodplant / parasite
telium of Puccinia polemonii parasitises live petiole of Polemonium caeruleum

Foodplant / feeds on
pycnidium of Septoria coelomycetous anamorph of Septoria polemonii feeds on Polemonium caeruleum