BioImages: The Virtual Field-Guide (UK)

Puccinia oxalidis Dietel & Ellis, 1895 (a rust fungus)

Date: 27 June 2007
Location: Berks, England
Voucher: 27/06/2007[A]
(Please quote this in any queries about this record)
State: Uredinia (II)
Record Summary: on Large Flowered Pink Sorrel (garden weed)
Associated organism: on underside live leaf of Oxalis debilis var. corymbosa (DC.) Lourt.
Identification Notes: Uredia: hypophyllous, bright orange, in groups, occasionally circinate (especially around holes in the leaf). Infected leaves curl upwards to reveal bright orange uredia on under surface. Leaf upper surface with faded yellowish, unbounded, depressed spots above the uredia clusters.

Uredospores: echinulate, globose to ellipsoid, 15.5-20.5/13-15.5µm, with granular orange contents and thick hyaline wall.

Images etc

naked eye photograph Infected host - in situ 500 by 333 pixels
naked eye photograph Infected host - in situ 500 by 333 pixels
naked eye photograph Infected leaves - top surfaces 500 by 376 pixels
naked eye photograph Infected leaves - under surfaces 500 by 410 pixels
naked eye photograph Uredia - enlarged 500 by 333 pixels
naked eye photograph Uredia - enlarged 500 by 333 pixels
naked eye photograph Uredia - enlarged 500 by 470 pixels
magnified photograph Uredia - magnified 500 by 333 pixels
magnified photograph Uredia - magnified 500 by 254 pixels
magnified photograph Uredia - magnified 500 by 333 pixels
magnified photograph Uredia - magnified 500 by 456 pixels
magnified photograph Uredia - magnified 500 by 373 pixels
microscope photograph Uredospores - magnified - surface focus 500 by 423 pixels
microscope photograph Uredospores - magnified 500 by 440 pixels
microscope photograph Uredospores - magnified 500 by 473 pixels

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