Acrocalymma, Alcorn & J. A. G. Irwin

Shao, Qiu-Yu, Qi, Ying-Hua, Wang, Jing, Yang, Yan-Ming, Zhang, Zhi-Yuan, Chen, Wan-Hao, Liang, Jian-Dong, Liang, Zong-Qi & Han, Yan-Feng, 2022, Acrocalymma guizhouense sp. nov. (Acrocalymmaceae, Dothideomycetes) from soil in China, Phytotaxa 558 (2), pp. 229-236 : 234

Key to Acrocalymma species with asexual morph

1. Pycnidia without central ostiole ......................................................................................................................................... A. bipolare

1. Pycnidia with central ostiole ..............................................................................................................................................................2

2. Conidia without apical appendage......................................................................................................................................................3

2. Conidia with apical appendage...........................................................................................................................................................4

3. Conidia hyaline, subcylindrical, with three vertical eusepta............................................................................................. A. yuxiense

3. Conidia hyaline to brown, cylindrical to fusiform, 1–3 septate ............................................................................................ A. vagum

4. Conidia> 5.5 µm wide.......................................................................................................................................................................5

4. Conidia <5.5 µm wide.......................................................................................................................................................................6

5. Conidia 20–35 × 7–9 µm, subcylindrical .................................................................................................................... A. hongheense

5. Conidia 17–19 × 5.5–6.5 μm, cylindrical to fusoid............................................................................................................. A. ampeli

6. Conidia> 25 μm long, (25–)28–32(–35) μm ...................................................................................................................... A. cycadis

6. Conidia <25 μm long.........................................................................................................................................................................7

7. Conidia with a small flattened central scar at base..................................................................................................................... A. fici

7. Conidia without a small flattened central scar at base .......................................................................................................................8

8. Conidia with appendage at each end ............................................................................................................................ A. medicaginis

8. Conidia with appendage at one end....................................................................................................................................................9

9. Conidia 3–4 µm wide, with a mucilaginous helmet-shaped appendage ........................................................................... A. aquatica

9. Conidia 1.5–2.5 µm wide, with a small flabellate apical appendage .......................................................................... A. guizhouense