ERICACEAE 



801 



diameter, separating a foot or two above the ground into several stout spreading branches, 

 and branchlets light red and thickly coated with pubescence when they first appear, be- 

 coming dark red-brown and covered with small plate-like scales; often a broad irregularly 

 shaped bush, with numerous contorted stems. Winter-buds about |' long, with hoary 

 tomentose scales, the outer ovate, acute, the inner obovate and rounded at apex. Bark 

 of young stems and of the branches thin, tinged with red, separating into large papery 

 scales exposing the light red or flesh-colored inner bark, becoming at the base of old 

 trunks sometimes j' thick, deeply furrowed, dark reddish brown, and broken into thick 

 square plates. Wood heavy, hard, close-grained, brown tinged with red, with a lighter 



colored sapwood of 10-12 layers of annual growth; sometimes used in Texas for the han- 

 dles of small tools and in the manufacture of mathematical instruments. 



Distribution. Texas, dry limestone hills, Travis, Comal, Blanco, Kendall and Banders 

 Counties, on the Guadaloupe and Eagle Mountains, Culberson and El Paso Counties; 

 southeastern New Mexico (Eddy County); on the mountains of Nuevo Leon in the 

 neighborhood of Monterey. 



3. Arbutus arizonica Sarg. Madrona. 



Leaves lanceolate to rarely oblong, acute or rounded and apiculate at apex, and cuneate 

 or occasionally rounded at base, with thickened entire or rarely denticulate margins, when 



