Populations of the rust fungus Puccinia poae-nemoralis isolated from Poa pratensis and Poa palustris represent special forms highly specialized to their host species. Resistant cultivars and ecotypes may be used in breeding programs. Morphological differences between the two forms are minimal, but paraphyses wall thickness varies.
Cagaš B., Marková J. (1985): Spezializierung des Rostes Puccinia poae-nemoralis Otth auf Poa pratensis L. und Poa palustris L. – Česká Mykologie 39(1): 39–43.
