Calycellina albida

Excipular hyphae of globose to very slightly angular texture (textura globosa to subangularis).

Marginal hairs short and hyaline.

Asci 8-spored, biseriate, with croziers at their base and an amyloid reaction of their apical apparatus in Melzer's reagent or Lugol's solution.

Paraphyses filiform, septate, slightly widened at the tip, the terminal cell containing refractive content inside that darkens noticeably with Lugol's solution.

Ascospores fusiform, hyaline, 3-septate (these septa much more visible in Melzer's reagent), with slight constriction at the septa and faint internal granular content.