S.Y. Guo, E.B.G Jones, & K.L. Pang, Bot. Mar. 60(4): 483 (2017)
Lulworthiaceae, Subclass Lulowthiomycetidae
Sammeyersia S.Y. Guo, E.B.G. Jones & K.L. Pang, Botanica Marina 60 (4): 483 (2017)
Sammeyersia grandispora S.Y. Guo, E.B.G. Jones, & K.L. Pang, Bot Mar 60(4): 483 (2017)
Sexual stage: Ascomata globose or subglobose to pyriform, immersed or superficial, ostiolate, with a long neck, brown to black, solitary or gregarious. Necks cylindrical, straight or curved, sometimes two on one ascoma. Peridium two-layered, composed of an outer layer of cells of textura angularis and an inner layer of elongated cells with large lumina; inner layer thickened at the base of the neck, composed of cells with thickened and highly melanized wall. Paraphyses absent. Asci 8-spored, elongate-fusiform or cylindrical, unitunicate, thin-walled, early deliquescing. Ascospores filamentous, curved, hyaline, tapering at each end into an elongate, conical process or apical chamber, acute or rounded, filled with mucus that is released through an apical pore. Asexual stage: unknown.
Description based on Abdel-Wahab et al. (2017) Bot. Mar. 60(4): 469–488.
Abdel-Wahab MA, Dayarathne MC, Suetrong S, Guo SY,Alias SA, Bahkali AH, Nagahama T, Elgorban AM, Abdel-Aziz FA, Hodhod MS, Al-Hebshi MO, Hyde KD, Nor NABM, Pang KL, Jones EBG (2017). New saprobic marine fungi and a new combination. Bot Mar 60(4):469-488.
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Meyers SP (1957). Taxonomy of marine Pyrenomycetes. Mycologia 49: 475–528.
Sammeyersia grandispora. (76) Ascomata on wood. (77) Section of elongate ascoma in wood. (78–82) Thickened cells with melanization of ascomatal wall at the base of the neck. (83) Two-layered peridium, composed of an outer layer of cells of textura angularis and an inner layer of elongate cells with large lumina. (84) Cylindrical ascus. (85) Filamentous ascospore. (86) End chamber of ascospore. Scale bars: 76 = 200 μm; 77 = 50 μm; 78–82, 84–85 = 30 μm; 83, 86 = 10 μm.
Image based on Abdel-Wahab et al. (2017) Bot. Mar. 60(4): 469–488.