Fig 1
DESCRIPTION: 1 - 3cm in diameter.  Irregular shaped clusters of orange blisters soon turn into clusters of cup-like structures. Several such areas may be found on any one leaf. SPORES: Urediniospores brownish yellow, globular. HABITAT: On the leaves of Lesser Celandine and various other Ranunculaceae as well as species of Poa. SEASON: Common. March to June.

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