8 Pl\ ACE AE 



5. Bracts longer than scales. A. Nordmanniana. 

 Bracts shorter than scales. A. cilicica. 



6. Bracts longer than scales, recurved. A. nobilis. 

 Bracts shorter than scales. A. concolor. 



LARIX. Larch. Tamarack. 



Percurrent deciduous trees with reddish or brown soft 

 wood with few resin passages; slender deeply fluted twigs; 

 small pale homogeneous pith; small alternate raised crescent- 

 shaped or transverse leaf-scars with 1 bundle-trace; no stipule- 

 scars; solitary sessile round buds with a number of exposed 

 scales; flat entire narrow green leaves clustered on short 

 spurs; monoecious catkin- or cone-like naked flowers; and 

 round-ovoid drooping cones with persistent thin scales each 

 covering 2 winged seeds. 



1. Cones 15-40 mm. long: scales usually downy. 2. 



Cones 10-15 mm. long: scales glabrous*. L. laricina. 



2. Branches rather spreading. (European larch). L. decidua. 

 Branches distinctly drooping. L. decidua pendula. 



CEDBUS. Cedar. 



Evergreen openly branched trees with yellowish soft duct- 

 less 1 wood without resin-passages; fluted rather slender twigs; 

 small continuous pith; alternate raised 4-sided small leaf-scars 

 with a single bundle-trace; no stipule-scars'; round or ovoid 

 scaly not resinous buds; 4-angled needle-like leaves often 

 crowded on short spurs; monoecious catkin- or cone-like naked 

 flowers; and cones with thin scales each covering 2 winged 

 seeds. 



1. Branches not drooping: cones flat or hollowed at tip. 2. 

 Branches drooping: cones rounded at tip. 6. 



2. Broad and flat-topped. 3. 

 Conical or oblong. 5. 



3. Trees. 4. 



Shrubby. O. Libani nana. 



