Bacusphaeria nypae Norlailatul, Alias & Suetrong, in Abdel-Wahab, Dayarathne, Suetrong, Guo, Alias, Bahkali, Nagahama, Elgorban, Abdel-Aziz, Hodhod, Al-Hebshi, Hyde, Bot. Mar.: 11 (2017).
Saprophytic marine ascomycete. Sexual morph: Ascomata 800–1000 × 500–550 µm, globose to subglobose, ostiolate, periphysate, immersed to erumpent, carbonaceous, lacking interascal tissue. Asci 180–215 × 15–18 µm, 8-spored, cylindrical, unitunicate, short pedicellate, with a conspicuous refractive apical ring. Ascospores 25–35 × 10–13 µm, uniseriate, ellipsoid, 1–5-septate, central cells brown, end cells hyaline or pale brown without a sheath or appendages. Asexual morph: Undetermined (description based on Abdel-Wahab et al. 2017).
Material examined: MALAYSIA, Kuala Sungai Baru mangrove, Malacca (GPS: N 02°21’26.400, E 102°02’16.400) on petiole base of Nypa fruticans (Arecaceae), 27 September 2011, Norlailatul and S.A. Alias, MFLU 13–0617, holotype.
Notes: Bacusphaeria nypenthi is distinct from other genera in having large ascomata, asci with a distinct, large
J-, apical ring and 1–5 septate-ascospores with, with hyaline to pale brown end cells, and other cells brown (Abdel-
Wahab et al. 2017). Bacusphaeria and Tirisporella are morphologically similar (Jones et al. 2015).
Fig. Bacusphaeria nypae (MFLU 13–0617). a Ascomata on substrate. b–d Asci. e–g Ascospores. Scale bars: a = 200 µm, b–d = 20 µm, e–g = 10 µm.