228 WILSON EXPEDITION TO CHINA 



woods, October 1906, TJ. Faurie (No. 185); same locality, May and 

 July 1908, Taquet (Nos. 1427, 1432). 



This is the most common evergreen Oak in western Hupeh and in eastern Szech'- 

 uan, where it grows from river-level to 1600 m. above the sea. On the Lushan moun- 

 tains in Kiangsi it is abundant, but in western Szech'uan it is not very common. 

 It is a handsome tree with a bushy flattened-round head of widespreading branches. 

 In Hupeh it is known as the Tieh-chou-U and the wood, which is hard and tough, 

 is highly valued for general construction purposes. 



The numerous specimens before us show considerable variation in degree of pu- 

 bescence on the young shoots and of glaucescence on the under side of the leaves. 

 The leaves also vary in size, but in all of them the basal part of the leaf is entire 

 and the teeth, with their gland-tipped mucro, are pointed forward and are never 

 spreading. The fruit is annual and the concentric rings of the cup are very reg- 

 ular and are quite entire or more or less crenulate on the same cluster. The 

 acorns are much longer than broad, narrowly cylindric or ovoid-conic. Our No. 

 1298 has the venation rather reticulate on the under side of the leaf and the cup 

 is slightly villose, and in these respects approaches Q. glauca, var. villosa Skan, of 

 which we have seen a co-type. Skan (in Jour. Linn. Soc. XXVI. 515 [1899]) cites 

 Henry's No. 9299" under his var. villosa. We suspect the specimens under this 

 number have been mixed, for in this herbarium the number must be referred to 

 t3T)ical Q. glauca Thunberg. 



A picture of this tree will be found under No. 585 of the collection of Wilson's 

 photographs and also in his Vegetation of Western China, No. 431. 



Quercus glauca, f. gracilis Rehder & Wilson, n. forma. 



A typo recedit foliis minoribus angustioribusque 4.5-8 cm. longis et 

 1.5-2.5 cm. latis ovato-oblongis v. oblongis v. lanceolato-oblongis 

 infra v. circa medium latissimis sensim acuminatis basi late cuneatis 

 V. fere rotundatis minus profunde serratis. 



Quercus Vibrayeana Seemen in Bot. Jahrb. XXIX. 293 (non Franchet & 

 Savatier) (1900). 



Western Hupeh: Patung Hsien, woods, alt. 1500 m., June and 

 November 1907 (No. 687, type; tree 12 m. tall, girth 2 m.); neigh- 

 borhood of Ichang, A. Henry (No. 3088). Eastern Szech'uan: 

 Wushan Hsien, A. Henry (No. 7076). 



In its small leaves this variety suggests Q. myrsinaejolia Blume, but the leaves are 

 pubescent on the under side, not glabrous, as in that species. In western Hupeh this 

 variety is not uncommon and grows with the type species. 



Quercus oxyodon Miquel in Ann. Mus. Lugd.-Bat. 1. 114 (1863-64). — 

 A. De Candolle, Prodr. XVI. pt. 2, 98 (1864). 



Cyclobalanopsis oxyodon Oersted in Kjoebenh. Vidensk. Meddel. XVIII. 71 



(1866). 

 Quercus lineata, var. /3 oxyodon Wenzig in Jahrb. Bot. Gart. Berlin, IV. 232 



(1886). — Hooker f., Fl. Brit. Ind. V. 605 (1888). — King in Ann. Bot. Gard. 



