August lo, 191 2 



79 



P. PONDEROSA 



Seed leaves 5 to 9. 



Bark of young trees scaly, 

 light brown. 



Bark of old trees russet-red, 

 divided into broad, rather regu- 

 lar plates. 



Young shoots with a strong 

 odor of orange when broken. 



Leaves blight yellow-green, 

 persisting about three year.<^. 



Wood fine grained, with thick 

 heartwood. 



Cones 3 to 6 inches long, 

 2^ to 3^ inches thick. 



Cone .scales usually widely 

 spreading, the largest about 2 

 cm. wide, thickened at apex, 

 prickle stout with a broad heavy 

 base. 



Seeds 8miu. long, 5nnn. wide, 

 slightly mottled; wing about 

 23 mm. long, widest at the 

 middle. 



P. Ji-:fi'ri;vi 



Seed leaves 7 to 10. 



Bark of young trees nearly 

 smooth, gray. 



Hark of old trees dark red- 

 brown, deeply furrowed and the 

 ridges usually narrow. 



Youncr shoots with a violet- 

 like odor when broken. 



Leaves blue-green, persisting 

 five to eight years. 



Wood coar.se grained, with 

 little heartwood. 



Cones 6 to II inches long, 

 4 to 5 inches thick. 



Cone scales not usually wide 

 spread, the largest 2.5cm. wide, 

 moderately thickened at apex, 

 prickle slender, downcurved 

 from a low, broad base. 



Seeds 14 mm. long, 7 mm. 

 wide, prominently mottled; 

 wing about 20 mm. long, wid- 

 est above the middle. 



ADDITIONS TO THE FLORA OF SOUTIIERX 

 CALIFORNIA 



Hv S. B. Parlsh 



The plants in the following list consist of two classes. 

 First, plants from the north now reported from stations which 

 are their pre.sent known southern limit. As they are, with 

 two exceptions, natives of the high Sierra Nevada, there is 

 little geographical opportunity for their further extension south- 

 ward. Second, plants of recent introduction into southern Cali- 

 fornia, and all of them, I think not heretofore recorded from the 



