BioImages: The Virtual Field-Guide (UK)

Septoria scabiosicola Desm., 1853 (a leaf-spot fungus)

Date: 21 August 2005
Location: East Inverness-shire, Scotland
State: Imperfect stage
Record Summary: infection spots on leaves of Devils-bit Scabious
Associated organism: on live leaf of Succisa pratensis
Identification Notes: Purple infection spots with white centres on leaves of Devil's Bit (Succisa pratensis). The spots seem better developed on the upper leaves.

Pale spore tendrils issue from ostiole after a few days in damp chamber.

Conidia: cylindric, usually curved, 62-77/1µm, c. 7 septate.

Images etc

naked eye photograph Infected leaf - upperside - close-up - enlarged 500 by 209 pixels
naked eye photograph Infected leaf - upperside - close-up - enlarged 500 by 332 pixels
naked eye photograph Infected leaf - underside - close-up - enlarged 500 by 296 pixels
naked eye photograph Infected leaf - underside - close-up - enlarged 500 by 324 pixels
naked eye photograph Infected leaves - uppersides 500 by 335 pixels
naked eye photograph Infected leaves - undersides 500 by 328 pixels
microscope photograph Conidia - magnified 500 by 448 pixels
microscope photograph Conidia - magnified 500 by 408 pixels
microscope photograph Conidia - magnified 500 by 333 pixels
microscope photograph Conidia - magnified 500 by 333 pixels
microscope photograph Conidia - highly magnified 474 by 500 pixels
microscope photograph Conidia - highly magnified 420 by 500 pixels
microscope photograph Conidia - highly magnified 479 by 500 pixels
microscope photograph Conidium - highly magnified 500 by 259 pixels
microscope photograph Conidium - highly magnified 500 by 274 pixels
microscope photograph Conidium - part - highly magnified 500 by 168 pixels
microscope photograph Conidium - part - highly magnified 500 by 184 pixels

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