BioImages (UK)
BIOTA
(living things)
Eukaryota
(eukaryotes)
MYCETEAE
(fungi, moulds and lichens)
ASCOMYCOTA
(spore-shooters)
ASCOMYCETES
(spore shooters)
Aposphaeria
(a genus of anamorphic fungi)
Record
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BioImages: The Virtual Field-Guide (UK)

Aposphaeria Berk., 1880 (a genus of anamorphic fungi)

Warning: Identification questionable
Date: 18 December 1999
Location: Berks, England
Voucher: 18/12/1999[D]
(Please quote this in any queries about this record)
State: Imperfect stage
Record Summary: on bleached patches on fallen Sweet Chestnut leaf
Associated organism: on bleached, fallen leaf of Castanea sativa
Identification Notes: Round black pycnothyria 0.15-0.25mm diam, gregarious on upper surface of bleached patches on rather wet fallen leaf.
Swollen and very shiny (like glass) when wet, drying flatter with raised central pimple and less shiny.
Conidia: 3-5/1µm, cylindric, tapered at one end and probably septate.
Conodiophores forming a palisade.
Darkened ring round ostiole.

Images etc

magnified photograph Bleached patches with black pycnothyria 500 by 392 pixels
magnified photograph Bleached patches with black pycnothyria 500 by 329 pixels
magnified photograph Leaf upper surface showing bleached patches with black pycnothyria 39 Kb 332 by 300 pixels
magnified photograph Pycnothyria on bleached patch - dry - close-up 500 by 401 pixels
magnified photograph Pycnothyria on bleached patch - dry - close-up 500 by 401 pixels
magnified photograph Pycnothyria on bleached patch - wet - close-up 25 Kb 335 by 315 pixels
magnified photograph Pycnothyria on bleached patch - wet - close-up 41 Kb 427 by 341 pixels
magnified photograph Pycnothyria on bleached patch - wet 500 by 499 pixels
microscope photograph Conidia 4 Kb 207 by 129 pixels
microscope photograph Conidiogenous cells and conidia 21 Kb 382 by 304 pixels
microscope photograph Conidiogenous cells and conidia 500 by 295 pixels
microscope photograph Conidiogenous cells and conidia 27 Kb 407 by 342 pixels
microscope photograph Conidiogenous cells and conidia 7 Kb 225 by 204 pixels
microscope photograph Conidiogenous cells and conidia 12 Kb 299 by 259 pixels
microscope photograph Conidiophore palisade 500 by 401 pixels
microscope photograph Conidiophores 11 Kb 238 by 296 pixels
microscope photograph Ostiole 58 Kb 415 by 372 pixels
microscope photograph Ostiole 34 Kb 427 by 341 pixels
microscope photograph Palisade of conidiophores 500 by 303 pixels
microscope photograph Palisade of conidiophores 20 Kb 396 by 311 pixels
microscope photograph Pycnothyrium wall 29 Kb 427 by 341 pixels

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