BioImages: The Virtual Field-Guide (UK)

Leptostroma Fr., 1815 (a genus of coelomycetes)

Warning: Identification questionable
Date: 16 March 2007
Location: Berks, England
Voucher: 16/03/2007[A]
(Please quote this in any queries about this record)
State: Imperfect stage
Record Summary: black patches on dead rachis of Royal Fern
Associated organism: on dead rachis of Osmunda regalis
Identification Notes: Pycnidia elongate, confluent, often becoming slightly reticulate; surface slightly shiny, slightly bulging when fertile, otherwise very thin; contents hyaline.

Conidia: cylindric-ovoid, rounded at blunt end, hyaline, 10-12/2µm.

Conidia too large for Leptostroma osmundicola

Images etc

magnified photograph Pycnidia - close-up - enlarged 500 by 198 pixels
magnified photograph Pycnidia - close-up - enlarged Good 500 by 342 pixels
magnified photograph Pycnidia - magnified Good 500 by 333 pixels
magnified photograph Pycnidia - magnified 500 by 286 pixels
magnified photograph Pycnidia - magnified 500 by 333 pixels
microscope photograph Conidia - highly magnified 500 by 339 pixels
microscope photograph Pycnidial wall - highly magnified 500 by 333 pixels
microscope photograph Pycnidium squash - conidia and conidiophores - magnified 498 by 500 pixels
microscope photograph Pycnidium squash - immature - magnified 500 by 475 pixels

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