ENUMERATION OF CONIFERS 



245 



Var. robusta, Kent. Emerald A. A strong-growing form with deep green 

 foliage. 



Var. virgata, Schwerin. The primary branches without or with very short 

 secondary branchlets. 



7. A. Ctmningham i i, Lamb. Hoop-Pine (Moreton Bay Pine). Tree 

 attaining 200 feet in height, with spreading branches in whorls of 4-7, the 

 upper ascending, the lower in older plants somewhat depressed: leaves 

 acicular, straight or nearly so, stiff and pungent, '^-Yi inch long, laterally 

 strongly compressed, with the dorsal midrib decurrent: staminate flowers 

 2-3 inches long: cone ovoid-globose, about 3 inches long; scales terminating 

 in a lanceolate recurved mucro. Australia. — The most widely distributed of 

 the Australian araucarias and a valuable timber tree. Introduced to Great 

 Britain in 1851. It is a less formal and symmetrical plant than A. excelsa 

 and not much cultivated. 



Var. glauca, Endl. With silvery 

 glaucous foliage. 



19. AGATHIS, Salisb. 

 DAMI^IAR-PINE 



Evergreen trees with whorled 

 branches; without distinct winter- 

 buds: leaves opposite or alternate, 

 usually more or less 2-ranked, flat 

 and broad, not needle-like, coriace- 

 ous: flowers dioecious; staminate 

 flowers axUlary, cylindric; fertile 

 flowers terminal or axillary: cones 

 usually on short lateral branchlets, 

 globose-ovoid, usually depressed, 

 composed of numerous broadly obo- 

 vate scales without bracts; each 

 scale with a solitary reversed winged 

 seed; cotyledons 2. (Name derived 

 from Greek agathis, ball or glome; 

 referring to the shape of the fertile 

 flowers and the cone.) 

 A. Leaves sessile, oblong to 



narrow- lanceolate, 



}4~M: inch broad. . . .1. A. australis 

 AA. Leaves short -petioled, 



generally oblong, ^i- 



\}/2 inches broad. 63. Agathis australis 



