242 THE CULTIVATED EVERGREENS 



all the branches uniformly and usually closely imbricated: flowers mostly 

 dioecious, the staminate terminal and solitary or disposed in fascicles; 

 anthers 6-8-celled ; fertile flowers in ovoid or globose heads that become large 

 woody cones with only 1 seed underneath each scale; scales numerous, 

 elongated, cuneate, 2-edged or 2-winged; seeds wingless, adnate to the 

 scale at the base; cotyledons 2-4. (Name derived from Arauco, a province 

 of southern Chile where one of the species grows.) — About twelve species 

 in South America, Australia, and the Pacific Islands to New Guinea. They 

 are stately ornamental trees in subtropical countries, while in colder regions 

 they are in their juvenile state favorite greenhouse and pot-plants. 



A. Leaves flattened, sharply pointed, ^-2 inches long, homo- 

 morphic: cone-scales not winged; cotyledons 2, hypogean 

 (remaining below ground). Sect. Colymbea, Endl. 

 B. Arrangement of leaves spreading in two ranks, contracted 



at base 1. A. Bidwillii 



BB. Arrangement of leaves imbricated, crowded, broad at base, 

 c. Shape of leaves lanceolate, loosely imbricated, glaucous 



green 2. A. brasiliana 



cc. Shape of leaves ovate-lanceolate, to ^4 inch broad at 



base, densely imbricated, bright green on both sides. . .3. A. araucana 

 AA. Leaves subulate or flattened and obtusish, not more than 32 

 inch long, more or less dimorphic, those of fertile branches 

 much shorter, compressed, obtusish and densely imbricate: 

 cone-scales winged; cotyledons 4, epigean (above ground). 

 Sect. EuTACTA, Endl. {Eutassa, Salisb. Eutacta, Link). 

 B. Form of leaves flattened, oblong-lanceolate or elliptic, ob- 

 tusish, densely imbricated, at least 3^ inch wide i. A. Rulci 



BB. Form of leaves (of sterile branches) subulate or linear- 

 lanceolate, about -^i inch thick, 

 c. Leaf mucronate, not spiny, slightly or not keeled on the 

 ventral side, triangular, falcate. 

 D. Position of leaves loosely appressed and imbricate, 

 broad at base and slightly decurrent, about ^4 inch 



long 5. A. Cookii 



DD. Position of leaves spreading, laterally compressed, de- 

 current, 3 3-} 2 inch long 6. ^. excelsa 



CO. Leaf spiny-pointed, rigid, much flattened, strongly 



keeled on both sides, quadrangular, scarcely falcate. . .7. A. Cunninghamii 



1. A. Bidwillii, Hook. Bxjnya-bunta. Tree attaining 150 feet in height, 

 the trunk free of branches for about half its height; branches in whorls of 

 10-15, sparingly ramified: leaves in two rows, lance-ovate and very sharp- 

 pointed, M~lK inches long, thick, firm and shining: staminate flowers 2-3 

 inches long: cone globose-ovoid, about 9 inches long and 7 inches through; 

 scales terminating in an acute edge. Australia. — Introduced about 1840. 

 A handsome and graceful species. 



2. A. brasiliana, A. Rich. {A. hrasiliensis. Loud.). Brazilian A. Tree 



