Amerosporium (unidentified), (unidentified Amerosporium excipulate coelomycetes)

26 Mar 2007 at OSGR: SU56 in Berks, England

Record SummaryDematiaceous hyphomycete on Ornamental Gourd in storage
Found asAnamorph
Date26 March 2007
Associated organismCucurbita pepo ssp ovifera
OS grid refOSGR: SU56
Lat/Lon51° 20' N, 1° 10' W
Vice CountyBerks, VC no: 22
Voucher26 Mar 2007[A]
(Please quote this in any queries about this record)

Notes: A storage rot on Ornamental Gourd which hadn't ripened sufficiently.

Abundant greyish-brown walled, projecting, septate setae, darkest and widest (5µm) at slightly sinuous base, base rarely bulbous and then 13µm, tapering to 2.5µm at rounded, hyaline, apex, up to 200µm long.

Conidia: hyaline, aseptate, cylindric to slightly fusiform, ends tapered and curved, to slightly acicular, 20-30/2.5µm

Conidiophores: hyaline, in pustules, growing from blackish basal layer and between setae.

Dictyochaeta comes close, if it's not Amerosporium.

The following literature was used to identify this find:

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