BioStor
 | The Metasequoia flora and its phytogeographic significance S Y Hu (1980) Journal of the Arnold Arboretum 61: 41-94 |
 | The 1980 Sino-American Botanical Expedition to Western Hubei Province, People's Republic of China B Bartholomew (1983) Journal of the Arnold Arboretum 64: 1-103 |