T. speciosa Florin
T. chinensis var. mairei (Lemée & H. Lév.) W.C. Cheng & L.K. Fu
Distribution CHINA: southern Anhui, Fujian, southern Gansu, northern Guangdong, northern Guangxi, Guizhou, western Henan, western Hubei, Hunan, Jiangxi, southern Shaanxi, Sichuan, eastern Yunnan, Zhejiang; VIETNAM. Habitat Coniferous and mixed forest, between 100 and 3500 m asl, though usually lower than var. chinensis. USDA Hardiness Zone 7 (?). Conservation status Not evaluated (IUCN), but as for var. chinensis. Cross-references B570, K294.
Var. mairei has comparatively widely spaced leaves (mean 9.4 per 2 cm), with a mean length to width ratio of 8 (i.e. long and wide leaves) and a high number of stomatal bands (mean 12.7). It has a wide range in central and southern China, meeting var. chinensis along the western and southern edges of the Sichuan Basin and in northern Vietnam (Möller et al. 2007).
The epithet mairei is attached to plants grown quite widely throughout our area. Specimens seen in the United States are attractive and were flourishing, both at Heronswood and at the JC Raulston Arboretum. It is probable that many specimens grown as T. celebica (see Bean: B569), T. sumatrana and T. wallichiana belong here.