Table 2.

Morphological comparison of M.puerensis and closely-related species viz. M.distoseptata, M.fusispora, M.maomingensis, M.oleae, M.pyriformis, M.thamplaensis and M.winteri.

Species	Ascomata	Peridium	Pseudoparaphyses	Asci	Ascospores	References
M.distoseptata	550–630 × 450–600 μm, perithecial, immersed, erumpent neck with pseudoparaphyses, clypeate	40 μm, with two strata, outer thick, and inner brown and hyaline cells of textura angularis to epidermoidea cells	1.8–2.1 μm, flamentous, septate, unbranched, dense, longer than asci	126.7–146.2 × 4.7–6.3 μm, apical ends obtuse, short pedicellate	19.7–24.9 × 4.3–5 μm, fusoid, obtuse ends, apical ends slightly bent	Hongsanan et al. (2020)
M.fusispora	432–624 × 527–618 μm, cone-shaped structures on the host surface, immersed to erumpent through host tissue, pyriform	25.5–61.5 µm, two-layered, outer layer of cells of textura intricata, inner layer of textura angularis	2–2.6 µm, dense, filiform, unbranched, hyaline, aseptate	200–231 × 7.6–9.2 µm, slightly flexuous, apically round, with well-developed ocular chamber, cylindrical pedicellate	27.5–32 × 6.5–7.5 µm, fusiform, with rounded to acute ends, narrow towards apex, constricted at the central septum, surrounded by an irregular and thin gelatinous sheath	Li et al. (2022)
M.maomingensis	300–550 µm high × 250–500 µm diam., solitary, semi-immersed to immersed, visible on the host surface as black, obvious, raised spots, black, uni-loculate, globose to subglobose	35–100 µm wide, comprising dense, thick, brown to dark brown cells of textura angularis, fusion with host tissue	1.5–3.5 µm wide, comprising numerous, filamentous, hyaline, septate, sometimes branched, longer than asci, attached at the base and between the asci	175–195 × 7–9 µm, cylindrical pedicel, rounded in apex, J-	(23–)24.5–29 × 6–8 µm, fusiform with acute ends, constricted at the septum, with a large guttule in each cell when mature	Du et al. (2024)
M.oleae	410–440 × 493–520 µm, cone-shaped structures on host surface, semi-immersed, globose to compressed globose	54–65 µm, two-layered, outer thick and inner composed of 5–6 layers of textura angularis to textura prismatica	2–2.5 µm, dense, filiform, unbranched, aseptate	209–237 × 7.5–9 µm, slightly flexuous, apically rounded with ocular chamber, cylindrical pedicellate	28–34 × 6–7 µm, fusiform with obtuse ends, slightly constricted at the septa	Li et al. (2022)
M.puerensis	260–720 × 225–850 μm, black dot on the host surface, immersed to erumpent to superficial, pyriform	40–120 µm, two-layered, outer thick, carbonaceous, inner composed of several layers, pale brown to brown cells of textura angularis	2–4.5 μm, filiform, unbranched, guttulate, pseudoparaphyses, longer than asci	175–205 × 6–10 μm, flexuous, apical ends obtuse, with ocular chamber, smooth-walled, short pedicellate	20–30 × 5–8 μm, fusiform, obtuse or conical ends, narrow towards apex, constricted at the central septum, with guttules in each cell	This study
M.pyriformis	330–640 × 275–420 μm, erumpent to superficial when mature, pyriform, papillate, ostiolate	20–50 μm, thin at the base and become thick towards sides, comprised of brown, thick-walled, cells of textura intricata in sides; and thin-walled, pale brown, cells of textura angularis in base	1.8–2.5 μm wide, dense, filiform, unbranched, septate, anastomosing between and above the asci	135–160 × 5.5–7.5 μm, fissitunicate, apically round, with an indistinct ocular chamber, short pedicellate	20–25 × 4.5–7 μm, , fusiform with acute ends, not constricted at the septa, with guttules in each cell	Kularathnage et al. (2023)
M.thamplaensis	550–630 × 450–600 μm, black spots on the host surface, immersed, clypeate, subglobose to obpyriform, some with a broad, flattened base	14–49 μm, composed of three strata, an outer stratum, dense, amorphous, thick-walled cells fusing with host tissue, a middle layer of thick-walled, black cells of textura angularis and an inner layer of thin-walled black cells of textura angularis	1.8–2.1 μm, attached at the base and between the asci, embedded in a gelatinous matrix	126.7–146.2 × 4.7–6.3 µm, long cylindrical, short-pedicellate, apically rounded with an obvious apical ring	19.7–24.9 × 4.3–5 μm, fusiform with acute angular ends, constricted at the septum, smooth-walled, containing several guttules when young	Zhang et al. (2017)
M.winteri	340–365 × 364–410 µm, semi-immersed to immersed, globose	55–62.5 µm, two-layered, outer thick, and inner composed of 3–4 layers of hyaline to lightly brown cells of textura angularis to textura prismatica	1.5–3.5 µm, dense, filiform, unbranched, septate	165–189 × 7–8.5 µm, slightly flexuous, apically round, with a distinct ocular chamber, cylindrical pedicellate	25–30 × 5–6.5 µm, partially overlapping, fusiform with acute ends, deeply constricted at the median septum	Li et al. (2022)