TABLE 1. Comparison of different species of Cyphellostereum with C. indicum and sequence data. The new species is in bold.

	Species	Hymenophore	Basidia	Basidiospores	Cyanobacterial filaments	Hyphal sheath	Intracellular haustoria	Clamp connections	Type locality	Sequence data	References
1	C. bicolor Lücking & Timdal	Resupinate, irregular	—	—	7–9 × 5–6 μm	Irregular, leaving interspaces	Absent	Absent	Mauritius	—	Lücking & Timdal (2016)
2	C. brasiliense Ryvarden	Pileate, round to slightly spatulate	Clavate; 18–25 × 5–6 μm	Oblong ellipsoid: 7–8 × 3.5–4.5 μm	—	—	—	Absent	Brazil	—	Ryvarden (2010)
3	C. galapagoense (Yánez, Dal- Forno & Bungartz) Dal-Forno, Bungartz & Lücking	—	—	—	7–10 × 5–10 μm	Jigsaw puzzle-shaped completely closed	Present	Absent	Ecuador	ITS	Dal-Forno et al. (2017)
4	C. georgianum Dal-Forno, McMullin & Lücking	Resupinate to corticioid	—	—	7–12.5 × 5–10 μm	Irregular, leaving interspaces	Absent	Present	USA	ITS	Dal-Forno et al. (2019)
5	C. imperfectum Lücking, Barillas & Dal-Forno	—	—	—	7–10 × 3–6 µm	Irregular, leaving interspaces	—	Absent	Guatemala	ITS, nuLSU, RPB2	Yánez et al. (2012)
6	C. indicum S. Nayaka and A. Debnath	Stipulate, flabelliform	Clavate, 16.7–20.11 × 2.5–5.5 μm	Irregular to pip shaped, smooth, simple, 3.18–4.9 × 2.06–2.9 μm	6–8 × 5.1–6.9 μm	Loosely wrapping photobiont filament	Superficial	Absent	India	ITS	This article
7	C. jamesianum Dal-Forno & Kaminsky	Resupinate	—	—	11–13 × 4–6 μm	Irregular, leaving interspaces	—	Present	USA	ITS	Dal-Forno et al. (2019)
8	C. mucuyense V. Marcano	Resupinate to corticioid	Basidia scattered 25–40 × 5–7 μm	Subglobose, non- septate, hyaline, 5-7 μm	8–10 × 4–9 μm	Regular in lateral outline	Not penetrating	Present	Venezuela	—	Marcano (2022)
9	C. muscicola (Pat.) D.A. Reid	Spathulate	20 × 4 μm	—	—	—	—	Absent	Java	—	Reid (1965)
10	C. nitidum (Lücking) Lücking	—	—	—	—	strongly appressed photobiont, loose hyphal sheath	—	—	Galapagos	RPB2	Yánez et al. (2012)
11	C. phyllogenum (Müll. Arg.) Lücking, Dal-Forno & Lawrey	—	—	—	6–12 × 7μm	With a regular hyphal sheath	—	Absent	Borneo	ITS, nuLSU	Parmasto (1978)
12	C. rivulorum (Berk. & M.A. Curtis) D.A. Reid	Shortly stipitate	Clavate; 30 × 5 μm	2.5–3,5 × 2–2.5 μm	—	—	—	Absent	Cuba	—	Reid (1965)
13	C. unoquinoum Dal-Forno, Bungartz & Lücking	—	—	—	7.5 – 11 × 5–7 μm	Irregular, leaving interspace	Absent	Absent	Ecuador	ITS	Dal-Forno et al. (2017)
14	C. ushimanum H. Masumoto & Y. Degawa	Resupinate	Clavate to short- cylindrical; 9.4–13.0 × 5.4– 6.5 μm	Ellipsoid, 5.3–6.3 × 3.4–4.0 μm	5.5–8.6 x 3.3–7.3 μm	Irregular, leaving interspaces	Present	Absent	Japan	ITS, nuLSU	Masumoto & Degawa (2022)