Collodiscula species

Xie, Xin, Liu, Li-Li, Shen, Xiang-Chun, Kang, Ying-Qian, Hyde, Kevin D., Kang, Ji-Chuan & Li, Qi-Rui, 2020, Contributions to species of Xylariales in China- 3. Collodiscula tubulosa (Xylariaceae), Phytotaxa 428 (2), pp. 122-130 : 128

Keys to Collodiscula species

1. Ascospores fusiform, with a median septum......................................................................................................................................2

- Ascospores fusoid or fusiform, 3- septate or 5- septate. ....................................................................................................................4

2. Ascospores 35–45 × 9 5–10 μm. ............................................................................................................................. C. chiangraiensis

- Ascospores shorter than 40 μm. .........................................................................................................................................................3

3. Ascospores 17–24 × 4–5.5 μm, brow, wall often wrinkled and appearing striate............................................................. C. japonica

- Ascospores 15–17.5 × 4.5–5.5 μm, yellowish brown, smooth, with narrow rounded ends............................................ C. bambusae

4. Ascospores 42.5–65 × 10–15.5 µm, light brown to brown, 5- septate, with narrow ends, with slimy sheath on the ends ................. ........................................................................................................................................................................................... C. tubulosa

- Ascospores light brown to dark brown, 3- septate, with broad rounded or narrow ends, with slimy sheath.....................................5

5. Ascospores 19–25.5 × 4.5–6 μm, with broad rounded ends, with slimy sheath covering the whole spore, without germ slit............ ............................................................................................................................................................................ C. fangjingshanensis

- Ascospores 28–35 × 8–10.5 μm, with narrow ends, dark brown, with slimy sheath at the ends, with indistinct germ slit running the whole spore length............................................................................................................................................... C. leigongshanensis