Aecidium - Species Dictionary - UK and Ireland : iSpot Nature - Your place to share nature. iSpot is a website aimed at helping anyone identify anything in nature. Once you've registered, you can add an observation to the website and suggest an identification yourself or see if anyone else can identify it for you.

Natural History Museum's UK Species Inventory
Fungi and Lichens
Fungi, Basidiomycota, Pucciniomycetes, Pucciniales, Aecidium
Aecidium behenis, Aecidium pseudocolumnare, Aecidium barbareae, Aecidium bunii, Aecidium cardui, Aecidium compositarum, Aecidium corni, Aecidium laceratum, Aecidium pini, Aecidium ranunculacearum, Aecidium rhei, Aecidium confertum, Aecidium confluens, Aecidium fragariae, Aecidium rubi, Aecidium violarum