ENUMERATION OF CONIFERS 



313 



dull tawny yellow, somewhat oblique at the base, about 5 inches long; 



apophysis flattened and slightly ridged, those near the base sometimes 



elongated; umbo small, with a short prickle, or obtuse; seed grayish-yellow, 



34 inch long. Japan. — Introduced in 18o4 by Siebold to Holland and in 1862 



to North America by Dr. Hall. 



Hardy north to southern Ontario 



and New England. Handsome 



ornamental pine of rapid growth 



when young, often very pictu- 



rescjue when older. Several garden 



forms are cultivated in Japan 



and have been introduced 



into this country. 



Var. aurea, Mayr. Goi^ 

 DEN Japanese P. Foliage 

 yellow. 



Var. oculus-draconis, Mayr. 

 Each leaf marked with two yel- 

 low bands, and therefore the 

 tufts of leaves, if seen from above, 

 show alternate yellow and green 

 rings, hence the name, meaning 

 dragon-eye. 



Var. umbraculif era, Mayr (var. 

 tabuliformis, Hort.). Japanese 

 Umbrell.\ p., the Tanyosho of 

 the Japanese. Dwarf dense form, 

 growing ultimately to 12 feet tall, 

 with spreading branches forming 

 an umbrella-like head. 



Var. globosa, Mayr. Japanese Globe P., the Bandaisho of the Japanese. 

 A dwarf form of globose habit. 



Var. pendula, Mayr. Weeping Japanese P. A form with pendulous or 

 prostrate branches. 



21. P. Massoniana, Lamb. Tree to 80 feet tall, with slender spreading 

 branches; bark in the upper parts of the tree red and peeling off in thin 

 strips, near the base of trunk dark gray and deeply fissured into irregular 

 oblong plates; branchlets yellowish-brown: leaves very slender and thin, 

 light green, 5-8 inches long: conelet with partly tuberculate or mucronate 

 and partly with obtuse scales; cones oblong-ovoid or ovoid, nut-brown, 2-3 

 inches long; apophysis flattened, slightly keeled, with a small, flat, unarmed 

 umbo; seed i inch long. Southeastern to western China. — Rarely cultivated 



83. Pinus densiflora. 



