422 WILSON EXPEDITION TO CHINA 
In western Szech’uan it is rather rare, but occurs around Mt. Omei and in the pre- 
fecture of Yachou Fu. It is a handsome tree 20-40 m. tall, with straight trunk, a 
much-branched head, and frequently buttressed roots. The leaves turn to a warm 
chestnut-brown or red in autumn and are retained late into the winter. It is 
known colloquially in Hupeh as the Feng Hsiang tree. 
In juvenile plants, either seedlings or shoots rising from the stumps of felled 
trees, the stems and petioles are villose, often densely so; the leaves are pal- 
mately 5-lobed with a broadly cordate base and villose below; the lobes are some- 
what narrowed to the base, acute, rarely shortly acuminate. Adventitious branches 
which develop on old trees after severe pruning also have these same hairy stems and 
leaves. In adult trees the branchlets and petioles are glabrous; the leaves smaller, 
3-lobed, with a cordate or more rarely truncate base and are glabrescent below; the 
lobes are divaricate, widening to the base and long acuminate. 
Hance (Jour. Bot. V. 110, 1867) has drawn attention to this remarkable differ- 
ence between the leaves and shoots in juvenile and adult trees of this species and 
we can abundantly confirm his observations. In Kiangsi province and other places - 
the timber is used for tea-chests, but we never heard that it was used for this 
purpose in western Hupeh. 
Pictures of this tree will be found under Nos. 38, 497, 480, 481, 532, 045, 0182 
of Wilson’s photographs and also in his Vegetation of Western China, Nos. 295- 
299. 
Liquidambar formosana, var. monticola Rehder & Wilson, n. var. 
A typo recedit ramulis foliisque semper glabris foliis subtus glau- 
cescentibus basi truncatis rarius subcordatis, in plantis juvenilibus 
tantum plerumque cordatis. Arbor 16-25 m. altus trunco circuitu 
2-3 m. 
Western Hupeh: Hsing-shan Hsien, woodlands, alt. 600- 
1200 m., rare, May and November 1907 (No. 795, type). Eastern 
Szech'uan: Taning Hsien, woodlands, alt. 1600 m., July 1910 (No. 
795°). 
This distinct variety is common in moist woods in north-eastern Szech’uan, 
more especially in Taning Hsien, but is rare in western Hupeh. We at first took 
it for a distinct species, but on closer examination we can find no essential differences 
in the flower or fruit. The glabrous character is fixed and constant as seedlings 
raised in the Arnold Arboretum as well as field observations prove. Seedling plants 
of the type and this variety growing side by side look remarkably different, but in 
the adult trees the distinctions are much less apparent and in the herbarium it is 
difficult to distinguish between them. The variety scarcely grows to as large a 
size as the type, and it is a much hardier tree. 
A picture of this tree will be found under No. 0181 of Wilson's photographs. 
1 There may be added the description of a new species from Yunnan of the 
closely allied genus Altingia Noronha. 
Altingia yunnanensis Rehder & Wilson, n. sp. 
Arbor 3-6-metralis, sed altitudinem ingentem trunco 4 m. diam. attingere 
dicitur; ramuli hornotini glaberrimi, annotini pallide brunnei. Folia in apice 
ramulorum fructiferorum congesta, subcoriacea, elliptico-ovata v. elliptico- 
