AROLLA PINE : WEYMOUTH PINE 189 



flower 6 8 mm. long. Leaves 55 80 

 (40 110) mm.; shoots pubescent. Seeds 

 with a very narrow wing. 



Pinus Gembra, L. Arolla Pine. Large tree, or bushy, 

 with greyish -brown, fissured and scaly bark, and pubescent 

 shoots. 



Male flowers sessile, ellipsoid, about 1 cm. long, with 

 6 8 membranous basal bracts ; ascending, ob-deltoid, 

 with a short obcordate, finely toothed thin membranous ; 

 stamens bright yellow ; anthers whitish to reddish-violet, 

 especially on the anther-comb. 



Female flower long-ovoid, violet; the placental scales 

 ovate and closely imbricated, and for some time distinct 

 from the carpellary scales. 



Cone shortly stalked, ascending, ovoid to long-ovoid, 

 obtuse, 5 8 cm.; passing from pruinose bluish-violet to 

 pale brown. 



** Cone cylindroid, pendulous, much longer 

 than broad, about 150 200 mm.; scales 

 striate. Needles slender bluish or greyish 

 green, about 100 200 mm. 



t Cones about 100 150 mm. long; needles 

 75100 (60110) mm., bluish; <^ cones 

 yellow with pink-purplish cast, and about 

 10 12 mm. long. 



Pinus Strobus, L. Weymouth Pine. A large Pine of 

 N. America, with smooth greyish to slaty bark, at length 

 rugged. The bluish shorter leaves and the shorter cones 

 distinguish it from the next, with which it is often con- 

 founded. 



Male flowers in pseudo-whorls of 5 6 on the bases of 

 young shoots; stalked, cylindroid, 7 12 mm. long; sta- 

 mens yellow with erect, bifid-tipped anther-comb. 



