Marginal Wood Fern – Dryopteris marginalis

by | Dec 9, 2023 | Ferns, NE Native Ferns

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Triphragmium ulmariae is a species of rust fungus in the family Sphaerophragmiaceae. It causes meadowsweet rust gall,[2] which develops as a chemically induced swelling, arising from the lower surface of the meadowsweet (Filipendula ulmaria) leaves.[3]

Life cycle

The fungus grows in the petioles and midribs of the perennial plant meadowsweet (Filipendula ulmaria), a member of the rose family, causing swelling and distortion. Sori develop with bright orange spores.[3] The rust's spores reach the new meadowsweet plants via air movements.

The rust has a severe effect on the survival of meadowsweet seedlings.

References

  1. ^ "Triphragmium ulmariae (DC.) Link 1825". MycoBank. International Mycological Association. Retrieved 2011-07-08.
  2. ^ Biolimages Archived 2008-08-21 at the Wayback Machine
  3. ^ a b Stubbs, F. B. Edit. (1986) Provisional Keys to British Plant Galls. Pub. Brit Plant Gall Soc. ISBN 0-9511582-0-1. P. 27.
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