ENUMERATION OF CONIFERS 



317 



8G. Pinus nigra 

 var. austriaca. 



lustrous. Balkan Peninsula. — Rare in cultivation and often confused with 

 the following species and of about the same hardiness. 



20. P. nigra, Arnold (P. Laricio, Poir.). Austrian P. Plate XLII. Tree 

 to 100 or occasionally 150 feet tall, with stout spreading branches in regular 

 whorls forming a symmetrical 

 pyramid, in old age sometimes 

 broad and flat- topped; bark on 

 old trees deeply 

 fissured into irreg- 

 ular longitudinal 

 scaly plates, pale 

 brown beneath the 

 deciduous scales; 

 branchlets usually 

 light brown; win- 

 ter-buds ovoid or 

 oblong-ovoid, light 

 brown, resinous: leaves stiff, 

 acute, dark green, 3-6 3^^ inches 

 long: conelet with mucronate 

 scales; cones sessile, ovate, 

 yellowish-brown, glossy, 

 usually 2-3 J/^ inches long; 

 apophysis depressed, conspicuously keeled; umbo flattened, obtuse or with a 

 very short prickle; seeds gray, 3^ inch. From Austria, Sicily, and Corsica 

 to western Asia. — Introduced about 1759 to Great Britain. The typical form 

 (var. austriaca) is hardy as far north as southern Ontario and New England. 

 A handsome vigorous pine of regular habit with stout spreading branches 

 and long dark green leaves. A variable species of which several geogra- 

 phical varieties have been distinguished. 



Var. austriaca, Asch. & Graebn. (P. Laricio var. aiistriaca, Endl. P. 

 austriaca, Hoss. P. nigricans, Hort.). Fig. 86. Tall tree, with dark gray 

 bark, broadly ovate head and very dark green rigid leaves 3-4 inches long: 

 branchlets grayish- or yellowish-brown. Southeastern Europe, from Austria 

 to Dalmatia and Rumania. 



Var. Pallasiana, Asch. & Graebn. (P. Pallasiana, Lamb.). Crimean P. 

 Tall tree, with long and stout branches: leaves dark green and glossy: cones 

 light brown, about 4 inches long, with the upper and middle apophyses 

 obtusely keeled. Western Asia. 



Var. Poiretiana, Asch. & Graebn. (P. Laricio, Poir. P. Laricio var. 

 Poiretiana, Ant. P. nigra var. calabrica, Schneid. P. Laricio corsicana, Hort.). 

 CoRSiCAN P. Tall tree to 150 feet high, with shorter ascending branches 



