Paraliomyces
lentiferus
Kohlm.
Dothideomycetes
Pleosporales
Lophiostomataceae
Ascomata: up to 680 μm high, 540 μm diam., subglobose to pyriform, subiculate or non-subiculate, immersed or erumpent, ostiolate, papillate or epapillate, carbonaceous, thick-walled, black, solitary.
Papillae: short or absent, ostiolar canal ca. 70 μm diam., periphysate.
Peridium: one-layered, composed of cells of textura angularis.
Pseudoparaphyses: 140-160 × 0.5-1.2 μm, filamentous, numerous, persistent.
Asci: 85-115 × 13-17 μm, eight-spored, cylindrical, short pedunculate, bitunicate, thick-walled, without apical apparatus, developing at the base of the ascoma.
Ascospores: 17-26.5(-27.5) × 8-12 μm, ellipsoidal to subfusiform, 1-septate below the middle, constricted at the septum, hyaline, at first surrounded by a gelatinous sheath that contracts to form a lateral, lentiform, viscous appendage over the septum, 7.5-12.5 μm diam., 1-3 μm thick.
Culture: -
Anamorph: undetermined.
Key references:
Cuomo V, Jones EBG, Grasso S. (1988) Occurrence and distribution of marine fungi along the coast of the Mediterranean Sea. Progress in Oceanography 21: 189-200.
Hyde KD, Jones EBG, Ariyawansha H, Liu JK, Binder M, Jayawardene N, Boehm E, Boonmee S et al. (2013) Families of Dothideomycetes. Fungal Divers 63: 1-313.
Read SJ, Hsieh SY, Jones EBG, Moss ST, Chang HS. (1992) Paraliomyces lentiferus: an ultrastructural study of a little-known marine ascomycete. Canadian Journal of Botany 70: 2223-2232.
Suetrong S, Schoch CL, Spatafora JW, Kohlmeyer J, Volkmann-Kohlmeyer B, Sakayaroj J, Phongpaichit S, Tanaka K, Hirayama K, Jones EBG. (2009) Molecular systematics of the marine Dothideomycetes. Studies in Mycology 64: 155-173.
Tam WY, Pang KL, Jones EBG. (2003) Ordinal placement of selected marine bitunicate ascomycetes inferred from SSU ribosomal DNA sequence analysis. Botanica Marina 46:487-494.
Image: Paraliomyces lentiferus. (a) Section of immersed ascoma with a periphysate neck. (b) One-layered peridium of cells of textura angularis. (c) Cylindrical bitunicate asci and pseudoparaphyses. (d) Hyaline, bicelled ascospore with a pad-like appendage at the septum.
Scale bar: a=100 μm; b, d=10 μm, c=30 μm. Photo reproduced with the permission of the National Taiwan Ocean University.