Byssonectria terrestris (All Fungi)
Similar to Byssonectria fusispora, but with smaller and less apiculate ascospores, and with paraphyses that are curved at the tip.
Not formally assessed. Potentially rare and in need of conservation, but it is likely that the species is overlooked for the apparently commoner Byssonectria fusispora.
Similar to Byssonectria fusispora, but with colonies that tend to be more aggregated, sometimes with a well-developed pale subiculum. Ascomata are often slightly paler, paraphyses have curved rather than straight tips and ascospores are slightly smaller and not or hardly apiculate. Ascospores measure 20.5-23 (mean 21.8) x 8.4-9.1 (mean 8.8) µm in water, 18.2-20.7 (mean 19.6) x 6.4-7.5 (mean 7.1) µm in lactic acid.
In GB&I, recorded only from England (Hampshire (New Forest and N Hants), Norfolk and Suffolk and Scotland (Wester Ross), with old (nineteenth century) reports from NW and SW Yorkshire. Otherwise known from Europe (Scandinavia, Germany and Switzerland) and North America (Canada and USA).
On soil and rotting vegetation, often associated with nitrogen enrichment (e.g. deer urine).