BioImages: The Virtual Field-Guide (UK)

Puccinia coronata Corda, 1837 (Crown Rust)

Date: 20 June 2007
Location: Berks, England
Voucher: 20/06/2007[B]
(Please quote this in any queries about this record)
State: Uredinia (II)
Record Summary: Uredia on leaves of Oat Grass
Associated organism: on live leaf of Arrhenatherum elatius
Identification Notes: Uredia: mainly epiphyllous, punctate or linear, orange.

Uredospores: globose to oblong, 18-26/18-20.5µm, thick-walled (c. 2µm), punctate on face and outline under x40 objective, with golden yellow granular contents.

Telia: raised, blackish blisters. on leaf sheath and base.

Teliospores: rich brown under microscope, two-celled, upper cell crested.

Images etc

naked eye photograph Infected leaf blades - abaxial (lower) surface - pale background - close-up 248 by 500 pixels
naked eye photograph Infected leaf blades - abaxial (lower) surface - pale background 136 by 500 pixels
naked eye photograph Infected leaf blades - adaxial (upper) surface - pale background - close-up 245 by 500 pixels
naked eye photograph Infected leaf blades - adaxial (upper) surface - pale background 129 by 500 pixels
magnified photograph Telia (and a few uredia) on leaf base - enlarged 500 by 333 pixels
magnified photograph Telia (and a few uredia) on leaf sheath - close-up - magnified 500 by 333 pixels
magnified photograph Telia (and a few uredia) on leaf sheath - close-up - magnified 500 by 333 pixels
magnified photograph Telia (and a few uredia) on leaf sheath - enlarged 500 by 118 pixels
magnified photograph Uredia on abaxial surface - close-up - enlarged 500 by 262 pixels
magnified photograph Uredia on abaxial surface - close-up - magnified 500 by 333 pixels
magnified photograph Uredia on adaxial surface - close-up - enlarged 500 by 258 pixels
magnified photograph Uredia on adaxial surface - close-up - enlarged 500 by 275 pixels
magnified photograph Uredia on adaxial surface - close-up - enlarged 500 by 274 pixels
magnified photograph Uredia on adaxial surface - close-up - magnified 500 by 333 pixels
magnified photograph Uredia on adaxial surface - close-up - magnified 500 by 333 pixels
microscope photograph Teliospores - magnified 500 by 333 pixels
microscope photograph Teliospores - magnified 500 by 343 pixels
microscope photograph Teliospores - magnified 500 by 382 pixels
microscope photograph Teliospores - magnified 391 by 500 pixels
microscope photograph Teliospores - magnified 436 by 500 pixels
microscope photograph Uredospores - magnified - equatorial view 500 by 443 pixels
microscope photograph Uredospores - magnified - surface view 493 by 500 pixels

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