Bactrospora

Thallus whitish, thin, scurfy, containing trentepohlioid algae; apothecia black, dull, with a thin, inconspicuous rim formed of a non-algal exciple formed of thick-walled hyphae loosely embedded in weak gel; hymenium formed of gnarled, branched, anastomosing paraphyses, the paraphyses and asci easily breaking off at the base as seen in cross section; asci clavate or cylindrical; spores acicular, colourless, with numerous transverse septae, 8 per ascus, frequently breaking into fragments and so appearing to be more than 8.

References: Ponzetti & McCune 2006.

Thallus pale creamy pinkish-white (pinkish tone lost in old specimens), containing Trentepohlia; apothecia jet-black, with an inconspicuous, quickly receding rim; spores 70-114 × 2.5-3.2  µ, with 21-24 (sometimes as few as 10) septa; thallus when fresh with pinkish tones; hypothecium IKI+ light blue; to be sought in rainforests …[Bactrospora cascadensis Ponzetti & McCune]