88 WILSON EXPEDITION TO CHINA 
ticellis v. lenticellis perpaucis parvis instructi, virides v purpurascentes, 
vetustiores epidermate laevi per plures annos persistente instructi. 
Gemmae ovoideae, cirea 8 mm. longae, olivaceae, glaberrimae, perulis 
6 v. 8 exterioribus, inferioribus fere semiorbicularibus, superioribus 
ovatis obtusiusculis. Folia ovata v. ovato-oblonga, longe acuminata, 
basi rotundata, indivisa et integra v. infra medium utrinque lobo 
rotundato brevissimo instructa, 9-18 cm. longa et 4.5-12 cm. lata, 
rarissime foliis 3—5-lobis fere tam latis quam longis, lobis late ovatis 
longe acuminatis instructis, basi truncatis v. subcordatis intermixtis, 
utrinque glabra et laete viridia, subtus reticulata et in axillis barbu- 
lata; petioli glabri, virides, 4-14 cm. longi. Corymbus sessilis, multi- 
florus, laxus, usque ad 20 cm. diam.; flores desiderantur. Fructus 
pallide flavido-brunnei; alae eum loculis complanatis elevato-striatis 
4-5 cm. longae et 10-13 mm. latae, rectae, angulo obtuso divergentes. 
Western Szech'uan: near Ya-chou Fu, side of streams, alt. 800- 
900 m., October 1908 (No. 1359, in part), alt. 450—600 m., October 
1910 (No. 4208); west of Kuan Hsien, alt. 900 m., June 17, 1908 (No. 
1359, in part), without locality, May 1904 (Veitch Exped. No. 3350). 
Acer catalpifolium is nearly allied to A. amplum and to A. longipes, both of which 
are easily distinguished by their three- or five-lobed leaves. Acer longipes, which 
occasionally produces some undivided leaves, differs besides in the pubescent under 
side of the leaves. According to Wilson this species is a handsome tree of very dis- 
tinct appearance with the foliage turning yellow in autumn. 
Acer longipes Franchet apud Rehder in Sargent, Trees and Shrubs, 
I. 178 (1905). 
Acer laetum, var. tomentosulum Rehder, l. c. 
Western Hupeh: South Wushan, woods, alt. 1800 m., October 
1907 (No. 434, in part); Fang Hsien, alt. 1600 m., May 21, 1907 (No. 
434, in part); Chang-yang, alt. 1600 m., October 1907 (No. 434 in 
part; Hsing-shan Hsien, woods, not common, alt. 1800 m., May 10, 
1907 (No. 1909). 
Additional material has shown that the leaves are sometimes five-lobed, and 
that apparently my A. laetum, var. tomentosulum, which was based on a flowering 
specimen with only half grown leaves, belongs to this species, so that now the 
ag oae of the foliage constitutes the chief character by which to 
A. longipes from A. cappadocicum and A. amplum. 
Sect. PALMATA 
Acer palmatum Thunberg, Fl. Jap. 162 (1784). 
Kiangsi: Kuling, thickets, alt. 1200 m., July 28 and 31, 1907 (Nos. 
1504, 1505). 
