Arthrinium - 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, Ascomycota, Sordariomycetes, Apiosporaceae, Arthrinium
Arthrinium caricicola, Arthrinium cuspidatum, Arthrinium euphorbiae, Arthrinium fuckelii, Arthrinium morthieri, Arthrinium puccinioides, Arthrinium sphaerospermum, Arthrinium sporophleum, Arthrinium urticae, Arthrinium phaeospermum