BioImages: The Virtual Field-Guide (UK)

Peziza violacea Pers. (a discomycete)

Date 15 March 2017
OS grid ref SU00
Lat/Lon 50° 50' N, 1° 50' W
Location Vice County: Dorset, VC9, England
Stage or state Fruitbody
Record Summary dark violaceous-brown apothecia on old fire-ste
Identification Notes: Asci 8-spored, tip blued in Melzer's Iodine.

Ascospores: ellipsoid, with two small guttules, finely warted under oil immersion. 12-13/7-8µm. Immature spores stain in lactophenol cotton blue but older spores in ascus, including wall ornament, unstained. Spores from a spore print show very finely rough with minute and separate warts that faintly stain in lactophenol cotton blue.

Paraphyses: with dark violaceous granular contents, apex slightly swollen and curved to one side.

This is P. praetervisa sensu Dennis with rough spores, which is now called P. violacea.

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