208 WILSON EXPEDITION TO CHINA 
This variety is well distinguished by its subglobose, slightly pubescent winter- 
buds, by its small and narrow somewhat chartaceous leaves and by its thin, shallow 
cup embracing only the base of the conical acorn, which is slightly over half 
an inch in diameter. It is probable that the specimens from Khasia, referred by 
King (in Ann. Bot. Gard. Calcutta, YI. 48, t. 43, fig. 9-11) to A. De Candolle's var. 
mücrocalyz, belong here, although they are described as having rather broader 
leaves and an acorn “less than half an inch in diameter." A. De Candolle's 
var. microcalyx is founded upon Q. microcalyr Korthals (in Verh. Nat. Gesch. 
Bot. 206 [1839-42]), which is a native of Borneo and has hemispherical acorns which 
are often depressed at the summit. That a tree native of Borneo should also grow 
in western China is highly improbable and is contrary to our experience. 
This new variety is not uncommon in moist woods at low altitudes in the petty 
state of Mupin and contiguous country to the southeast. It is a shapely evergreen 
tree growing from 15 to 20 m. tall. 'The wood is hard and tough. 
Here may be recorded another variety of this polymorphous species collected 
by Henry in Yunnan. 
Lithocarpus spicata, var. brevipetiolata Rehder & Wilson, n. comb. 
Quercus grandifolia D. Don in Lambert, Pinus, II. 27, t. 8 (1824); ed. 2, II. 
Append. 3, t. 2 (1828). — D. Don, Prodr. Fl. Nepal. 57 (1824). 
Quercus spicata, 8 brevipetiolata A. De Candolle, Prodr. XVI. pt. 2, 86 (1864). 
Quercus spicata, var. brevipetiolata King apud Hooker f., Fl. Brit. Ind. V. 610 
(1888). — King in Ann. Bot. Gard. Calcutta, I1. 48, t. 41, fig. 3 (1889). 
Yunnan: Szemao, mountains to east and southwest, alt. 1300-1600 m., A. 
Henry (Nos. 11614, 11614*, 116145, 11614°, 116144; tree 6-16 m. tall). 
Lithocarpus megalophylla Rehder & Wilson, n. sp. : 
Arbor 16-metralis, trunco 0.3 m. diam.; ramuli validi, striati, gla- 
brati. Folia coriacea, oblongo-elliptica, subito breviter acuminata, 
basi oblique, late cuneata v. fere rotundata, integra, margine revoluta, 
15-27 cm. longa et 7.5-12 em. lata, glabra, nitidula, concoloria, costa 
supra impressa subtus elevata, nervis utrinsecus circiter 10, curvatis, 
secus marginem adscendentibus et anastomosantibus supra leviter 
impressis subtus valide elevatis trabeculis elevatis subparallelis con- 
junctis, utrinque in sicco saltem leviter reticulata, plus minusve 
bullata; petioli validi, 3-4.5 em. longi, supra anguste canaliculati, 
glabri. Fructus biennes, sessiles v. subsessiles saepissime plures basi 
confluentes, in spicis 12 cm. longis v. ultra, rhachi valida lenticellata 
pubescente; cupula lignea, scutelliformis, 2-2.5 em. diam. et vix 1 em. 
alta, basin tantum glandis amplectens, intus cinereo-tomentella mar- 
gine glabrescente excepta, cicatrice glandis elevata, bracteis late 
triangulari-ovatis acuminatis carinatis tomentosis, marginalibus arcte 
adpressis indistinctis; glans fere globularis, apiculata, basi concava, 
brunnea, nitidula, 2-2.5 em. diam., pericarpio osseo 2 mm. crasso. 
Western Szech'uan: Hungya Hsien, near Wa-wu-shan, woods, 
alt. 1000 m., September 1908 (No. 3631). 
