174 



TREES OF NORTH AMERICA 



trunk 18'-30' in diameter, usually branching from near the ground, and slender branchlets 

 coated with pale scurfy pubescence often persistent for two or three years, orange-red and 

 marked by pale lenticels in their first winter and ultimately ashy gray; often a shrub with 

 clustered stems only a few feet high. Winter-buds : terminal, \'-%' long, compressed, nar- 

 rowed and often oblique at apex, covered with pale tomentum; axillary \' long, compressed, 

 coated with pale pubescence. Wood heavy, hard, not strong, rich dark brown with thick 

 white sapwood. The beauty of the veneers obtained from the stumps of the large trees is 

 fast causing their destruction. 



Distribution. Limestone banks of the streams of southern, central and western Texas 

 from the Rio Grande to the mountains in the western part of the state; western Oklahoma 

 (Kiowa, Greer, Beckham, Rogel, Mills and Ellis Counties); southeastern New Mexico. 



Occasionally cultivated in the eastern United States and in Europe, and hardy as far 

 north as eastern Massachusetts; interesting as producing the smallest nuts of any of the 

 known Walnut-trees. 



5. Juglans calif ornica S. Wats. 



Leaves 6'-9' long, with glandular pubescent petioles and rachis, and 11-15, rarely 19, 

 oblong-lanceolate acute or acuminate glabrous finely serrate leaflets cuneate or rounded 

 at base, -%%' long and 5' f ' wide, the lower often rounded at apex. Flowers : staminate 

 in slender glabrous or puberulous aments 2'-3' long; calyx puberulous on the outer surface 

 with acute or rarely rounded lobes, its bract, puberulous; stamens 30-40, with yellow 

 anthers and short connectives bifid at apex; the pistillate subglobose, puberulous; stigmas 



Fig. 167 



yellow, y long. Fruit globose, $'-f ' in diameter, with a thin dark-colored puberulous husk; 

 nut nearly globose, deeply grooved with longitudinal grooves, thick shelled, 4-celled at base, 

 imperfectly 2-celled at apex; seed small and sweet. 



A shrubby round-headed tree or shrub generally 12-20, rarely 40-50 high, usually 

 branching from the ground or with a short trunk 1 or rarely 2-3 in diameter, and slender 

 branchlets coated with scurfy rufous pubescence when they first appear, glabrous, reddish 

 brown and marked by pale lenticels at the end of their first season and gray the following 

 year. Winter-buds coated with rufous tomentum. 



Distribution. Banks of streams and bottom-lands in the southern California coast 

 region from Santa Barbara and the Ojai valley to San Fernando and the Sierra Santa 

 Monica, and along the foothills of the Sierra Madre to the San Bernardino Mountains and 

 southward to the Sierra Santa Anna. 



