Phyllosticta penstemonis Cooke, 1856

on Penstemon

parasite

Causes 1-2 cm sized, irregular-roundish leaf spots without a clear border. Pycnidia black, deeply immersed. Conidia 2-3 x 4-5 µm.

host plants

Plantaginaceae, monophagous

Penstemon.

synonyms

Phyllosticta pentastemonis.

references

Brandenburg (1985a: 572), Cejp (1965a).