BioImages: The Virtual Field-Guide (UK)

Unidentified Amerosporium (Unidentified Amerosporium Excipulate Coelomycetes)

Date 26 March 2007
OS grid ref SU56
Lat/Lon 51° 20' N, 1° 10' W
Location Vice County: Berks, VC22, England
Voucher 26/03/2007[A]
(Please quote this in any queries about this record)
Stage or state Anamorph
Record Summary Dematiaceous hyphomycete on Ornamental Gourd in storage
Associated organism: on fruit of Cucurbita pepo ssp. ovifera
Identification 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.

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