254 THE CULTIVATED EVERGREENS 



var. sutchuenensis, Franch.). Differs chiefly in its stouter and shorter ascend- 

 ing leaves acute or obtuse, with distinct yellow petioles. Western China. — 

 Introduced by Wm. Purdom to the Arnold Arboretum in 1911. 



9. A. Delavayi, Franch. {A. Faheri, Craib. Keteleeria Fabri, Mast.). 

 Delavay F. Tree to 120 feet tall; bark gray, fissured in old trees; winter- 

 buds resinous; branclilets usually glabrous, red-brown, lustrous, slightly 

 grooved and often hairy in the grooves: leaves crowded, spreading at 

 nearly right angles, those of the middle ranks much smaller, nearly upright, 

 and often upturned, scarcely pectinate below, linear, emarginate at apex, 

 f- 1 inch long, acute at the margin and usually strongly revolute, dark 

 green above with wide bands beneath: cones cylindric-oblong, 23^-3 inches 

 long, violet-black before maturity; scales about ^ inch wide and entire at 

 the margin; bracts slightly exserted. Western China. — Introduced by 

 E. H. Wilson in 1901 to Great Britain, and in 1908 to the Arnold Arboretum. 



A related species is A, Beissneriana, Rehd. & Wils. Tree to 180 feet tall; 

 bark fissured, dark gray; branchlets yellowish or grayish-yellow, rarely 

 slightly puberulous: leaves crowded, linear-ligulate, nearly plane above and 

 sometimes stomatiferous near apex, with pale or glaucescent bands beneath: 

 cone peduncled; bracts hidden. Western China. — Introduced by E. H. 

 Wilson in 1904 to Great Britain and in 1908 to the Arnold Arboretum where 

 it did not prove hardy. 



Into this affinity seems to belong A. Forrestii, Craib. Tree to 60 feet tall; 

 branchlets brown, glabrous or slightly hairy: leaves pectinately arranged, 

 ascending and forming a V-shaped groove, those of lower and upper ranks 

 directed forward and upward and curving slightly backward, exposing the 

 white under side, linear, to 13^^ inches long, rounded or emarginate, with 

 broad white bands beneath: mature cones not known. Southwestern China. 

 — Introduced about 1910 by G. Forrest to Great Britain, Not yet in culti- 

 vation in this country. 



10. A. chensiensis, Van Tiegh. Shensi F. Tree to 120 feet tall; winter- 

 buds ovoid, slightly resinous; branchlets glabrous, yellowish-gray, older ones 

 dark gray: leaves horizontally spreading and more or less 2-ranked, linear, 

 broader above the middle, f-l3^ inches long, usually rounded and emargi- 

 nate at apex, rarely acutish, shining dark green above, with grayish-green 

 or sometimes glaucescent bands beneath: cones ovoid-oblong, 3-4 inches 

 long and nearly 2 inches in diameter, green while young, finally cinnamon- 

 brown; scales about Ij^ inches wide, erose at the margin and tomentose 

 outside; bracts hidden. Central China. — Introduced in 1907 by E. H. Wilson 

 to the Arnold Arboretum where it has proved hardy, but grows slowly. A 

 very distinct species. 



11. A. recurvata, Mast. Tree to 120 feet tall, with rough dark gray or 

 reddish-brown bark; buds ovoid, very resinous; branchlets glabrous and 



