84 



TREES OF NORTH AMERICA 



ing into thin loose papery scales; often a shrub. Bark about \' thick, reddish brown, sepa- 

 rating into long narrow loosely attached scales. 



Fig. 82 



Distribution. In the United States only on the slopes of the Chisos Mountains, in 

 Brewster County, southern Texas; common in northeastern Mexico, growing at elevations 

 of 6000-8000 on the hills east of the Mexican table-lands. 



Occasionally cultivated in the gardens of southern France and of Algeria. 



6. Juniperus pachyphlaea Ton. Juniper. Checkered-bark Juniper. 



Leaves appressed, acute and apiculate at apex, thickened, obscurely keeled and glan- 

 dular on the back, bluish green, rather less than \ ' long; on vigorous shoots and young 

 branchlets linear-lanceolate, tipped with slender elongated points, and pale blue-green like 

 the young branchlets. Flowers opening in February and March: the male stout, \' long, 

 with 10 or 12 stamens, their connectives broadly ovate, obscurely keeled on the back, short- 



F,g. 83 



pointed: scales of the female flower, ovate, acuminate, and spreading. Fruit ripening in 

 the autumn of its second season, subglobose to short-oblong, irregularly tuberculate, 

 \'-\' in diameter, usually marked with the short tips of the flower-scales, occasionally 

 opening and discharging the seeds at the apex, dark red-brown, more or less covered with 



