Chrysosporium, Corda, 1833

Han, Yan-Feng, Ge, Wei, Zhang, Zhi-Yuan, Liang, Jian-Dong, Chen, Wan-Hao, Huang, Jian- Zhong & Liang, Zong-Qi, 2022, Morphological and phylogenetic characterisations reveal nine new species of Chrysosporium (Onygenaceae, Onygenales) in China, Phytotaxa 539 (1), pp. 1-16 : 14

Key to the Chrysosporium species found in this study:

1. Racquet hyphae present......................................................................................................................................................................2

1. Racquet hyphae absent .......................................................................................................................................................................3

2. Arthroconidia present ............................................................................................................................. Chrysosporium sichuanense

2. Arthroconidia absent ..........................................................................................................................................................................4

3. Intercalary conidia present .................................................................................................................................................................5

3. Intercalary conidia absent...................................................................................................................................................................6

4. Chlamydospores present............................................................................................................................ Chrysosporium alvearium

4. Chlamydospores absent ......................................................................................................................................................................7

5. Intercalary conidia ellipsoidal ............................................................................................................................................................8

5. Intercalary conidia fusiform, pyriform or long oval...........................................................................................................................9

6. Conidia smooth.................................................................................................................................................................................10

6. Conidia rough, obovoid, ellipsoidal ........................................................................................................ Chrysosporium jiangsuense

7. Intercalary conidia absent........................................................................................................................... Chrysosporium hubeiense

7. Intercalary conidia ellipsoidal ................................................................................................................ Chrysosporium guangxiense

8. Conidia rough, pyriform or clavate, ellipsoidal......................................................................................... Chrysosporium gansuense

8. Conidia smooth.................................................................................................................................................................................11

9. Conidia hyaline.................................................................................................................................................................................12

9. Conidia hyaline, pale brown, moderate brown................................................................................... Chrysosporium keratinophilum

10. Lateral or terminal conidia ovoid, 2.0–3.5 × 1.0–2.5 μm....................................................................... Chrysosporium kaiyangense

10. Lateral or terminal conidia ovoid, 5–15 × 2.5–7 μm.............................................................................. Chrysosporium ovalisporum

11. Lateral or terminal conidia cylindrical, 3.5–9.5 × 1.0–2.5 μm................................................................ Chrysosporium irregularum

11. Lateral or terminal conidia ovoid, 4.0–7.5 × 2.0–2.5 μm........................................................................... Chrysosporium villiforme

12. Intercalary conidia fusiform, 6.5–9.0 × 2.5–3.0 μm.................................................................................... Chrysosporium fusiforme

12. Intercalary conidia long oval, 7.5–13.5 × 4.0–8.0 μm ............................................................................. Chrysosporium multiforme