TABLE 2.

Synopsis of Immotthia species based on type studies (I. hypoxylon is listed separately from I. atrograna in this study for a better understanding).

Species name	Ascomata	Asci	Ascospores	Asexual morph	Host occurrences	References
Immotthia atrograna (= I. hypoxylon)	120–270 μm diam., 150–310 μm high, carbonaceous, glabrous, densely aggregated in large groups or loosely scattered, globose to obpyriform, with pore-like, cream to reddish brown, 30–50 diam., inconspicuous ostiole	60–86 × 6–10 μm, 8-spored, oblong to cylindrical, shortly pedicellate with knob-like or obtuse pedicel	(8–)9–14(–18) × 5–6 μm, 1-seriate, yellowish brown to reddish brown, ellipsoid to biconical, often upper cell slightly shorter and broader than the lower, ends rounded to subacute, 1-septate, constricted at the septum, smooth to slightly verrucose	Coniothyrium parasitans	Aceri-Fraxinetum, Carya olivaeformis, Carya sp., Hypoxylon rubigmosum, H. rubiginosum on Fraxinus excelsior, H. rubigmosum on Fraxinus sp., H. rubigmosum on Salix alba, Hypoxylon sp., Hypoxylon sp. on Acer pseudoplatanus, Hypoxylon sp. on Fraxinus excelsior, Hypoxylon sp. on Fraxinus sp., Liquidambar sp., Robinia sp.	Jaklitsch et al., 2002
Immotthia atroseptata	170–250 μm diam., 190–350 μm high, simple or aggregated, globose to obpyriform, with conical or truncate apex perforated by a small, inconspicuous ostiole	62–95 × 8–11 μm, 8-spored, clavate, with a short furcate pedicel	13–17.5 × 4.5–6 μm, 1–2-seriate, brown to reddish brown, ellipsoidal to fusiform with both rounded ends, the upper cell slightly larger than the lower, 1-septate, constricted at the septum, smooth-walled	Undetermined	Apothecia of Pestalopezia rhododendri on fallen leaves of Rhododendron maximum	Pirozynski, 1973; Doilom et al., 2018
Immotthia bambusae	150–220 μm diam., 130–210 μm high, carbonaceous, scattered, rarely solitary, gregarious, globose to subglobose, with rounded apex with a pore-like, inconspicuous ostiole	45–60(–62) × 7.5–10 μm, 6–8-spored, cylindrical, sessile to subsessile, with knob-like or furcate ends	9–11 × 2.8–4.5 μm, 1–2-seriate, light brown to brown, ellipsoidal to fusiform, with rounded ends, lower cell slightly longer and narrower than the upper, 1-septate, finely verrucose	Undetermined	Hypoxylon sp. on bamboo	This study
Immotthia hypoxylon	120–280 μm diam., 170–290 μm high, carbonaceous, glabrous, scattered to clustered, gregarious, subglobose to obpyriform, with pore-like ostiole	(67–)70–90(–108) × 8–11 μm, 8-spored, cylindrical, shortly pedicellate with a knob-like or obtuse end	10–13(–15) × 4–6 μm, 1-seriate, brown to reddish brown, ellipsoidal to fusiform, with round ends, 1-septate, slightly constricted at the septum, rough-walled	Coniothyrium parasitans	Hypoxylon investiens on Quercus sp., Hypoxylon sp. on Fraxinus sp., H. truncatum on dead canes of Rosa sp., Tilia sp., wood	Hyde et al., 2017