CARBONIFEROUS AND PERMIAN PLANTS OF CHINA
PROVINCE HEBEI
PROVINCE HEBEI
Collectors
| An* & Yao | 1920 |
|---|---|
| Andersson* & Yao | 1920 |
| Andersson* et al. | 1920 |
| Chen & Chuang | 1922 |
| Chuang | 1922 |
| Grabau et al. | 1921 |
| Li | 1921 |
| Yao | 1920 |
*Andersson is Professor Johan-Gunnar Andersson, and An most likely also refers to him (as his Chinese name or an abbrevation).