^ 208 WILSON EXPEDITION TO CHINA 



This variety is well distinguished by its subglobose, shghtly 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 haK 

 an inch in diameter. It is probable that the specimens from Khasia, referred by 

 King (in Ann. Bot. Gard. Calcutta, II. 48, t. 43, fig. 9-11) to A. De Candolle's var. 

 microcalyx, 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. microcalyx 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, 5 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, II. 48, t. 41, fig. 3 (1889). 



Yunnan: Szemao, mountains to east and southwest, alt. 1300-1600 m., A. 

 Henry (Nos. 11614, 11614% 11614^ 11614% 11614'^; tree 6-16 m. tall). 



Lithocarpus megalophylla Rehder & Wilson, n. sp. 



Arbor 16-metralis, trunco 0.3 m. diam.; ramuH vaHdi, striati, gla- 

 brati. FoHa coriacea, oblongo-elhptica, subito breviter acuminata, 

 basi obUque, late cuneata v. fere rotundata, Integra, margine revoluta, 

 15-27 cm. longa et 7.5-12 cm. 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 subparalleUs con- 

 junctis, utrinque in sicco saltem leviter reticulata, plus minusve 

 bullata; petioli validi, 3-4.5 cm. 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 cm. diam. et vix 1 cm. 

 alta, basin tantum glandis amplectens, intus cinereo-tomentella mar- 

 gine glabrescente excepta, cicatrice glandis elevata, bracteis late 

 triangulari-ovatis acuminatis carinatis tomentosis, marginalibus arete 

 adpressis indistinctis; glans fere globularis, apiculata, basi concava, 

 brunnea, nitidula, 2-2.5 cm. diam., pericarpio osseo 2 mm. crasso. 



Western Szech'uan: Hungya Hsien, near Wa-wu-shan, woods, 

 alt. 1000 m., September 1908 (No. 3631). 



