BioImages: The Virtual Field-Guide (UK)

Peronospora violacea Berk., 1860 (a downy mildew)

Date: 31 July 1999
Location: Berks, England
Voucher: 31/07/1999[D]
(Please quote this in any queries about this record)
Record Summary: on flowers of Field Scabious
Associated organism: on living corolla of Knautia arvensis

Images etc

magnified photograph Infected flowerhead - close-up 31 Kb 342 by 311 pixels
magnified photograph Infected flowerhead - old - close-up 33 Kb 350 by 292 pixels
magnified photograph Infected flowerhead - old 500 by 456 pixels
magnified photograph Infected flowerhead 33 Kb 481 by 339 pixels
magnified photograph Infected flowerhead 500 by 296 pixels
magnified photograph Infected flowerhead 500 by 454 pixels
magnified photograph Sporangia on petals - highly enlarged 24 Kb 410 by 354 pixels
magnified photograph Sporangia on petals - highly enlarged 29 Kb 404 by 341 pixels
magnified photograph Sporangia on petals - highly enlarged 23 Kb 401 by 281 pixels
magnified photograph Sporangia on petals - highly enlarged 29 Kb 416 by 314 pixels
magnified photograph Sporangia on petals - highly enlarged 500 by 351 pixels
magnified photograph Sporangia on petals - highly enlarged 35 Kb 467 by 311 pixels
microscope photograph Oospore - magnified 18 Kb 295 by 334 pixels
microscope photograph Oospores in petal tissue - magnified 20 Kb 427 by 341 pixels
microscope photograph Oospores in petal tissue - magnified 500 by 401 pixels
microscope photograph Oospores in petal tissue - magnified 30 Kb 427 by 341 pixels
microscope photograph Oospores in petal tissue - magnified 20 Kb 389 by 317 pixels
microscope photograph Pollen grain of host - magnified 25 Kb 427 by 341 pixels
microscope photograph Pollen grain of host - magnified 53 Kb 431 by 463 pixels
microscope photograph Pollen grain of host - magnified 13 Kb 189 by 186 pixels
microscope photograph Pollen grain of host - magnified 46 Kb 412 by 482 pixels
microscope photograph Pollen grain of host - magnified 460 by 500 pixels
microscope photograph Sporangia - magnified 500 by 382 pixels
microscope photograph Sporangia on sporangiophore - magnified 15 Kb 332 by 244 pixels
microscope photograph Sporangiophore - magnified 8 Kb 139 by 272 pixels
microscope photograph Sporangiophore - magnified 14 Kb 245 by 421 pixels
microscope photograph Sporangiophore - magnified 13 Kb 175 by 376 pixels
microscope photograph Sporangiophore - magnified 291 by 500 pixels
microscope photograph Subsidiary infection or contaminant - magnified 9 Kb 157 by 252 pixels

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