TORREYA 211 



1. T. taxifolia, Arnott 

 Stinking Cedar. Savin 



Transverse. Growth rings variable, 1.5-3 mm. thick. Summer wood of 2-4 

 or more tracheids, usually very thin, often double and passing gradually 

 into the spring wood ; spring tracheids squarish and in regular rows, 

 rather uniform. Structure of the growth ring open throughout. Medul- 

 lary rays somewhat prominent, i cell wide, distant 2-9, rarely 16, rows 

 of tracheids. 



Radial. Ray cells straight ; the upper and lower walls thick, conspicuously 

 pitted, uniform ; the terminal walls thin and entire, sometimes curved ; 

 the lateral walls with small, round, but variable pits with a distinct 

 border, the orifice very narrow, 2-5 per tracheid. Bordered pits in I 

 or 2 rows. Pits on the tangential walls of the summer tracheids obscure. 

 Spirals of the tracheids in 2 series, distant 5-30 p, very flat, the angle 

 70.4, compact and finally vestigial in the summer wood. 



Tangential. Rays medium, the cells rather small, oval, or oblong, thick- 

 walled. 



Very durable in the soil. 



Relative specific gravity 0.5145 



Approximate fuel value 51 .08 



Coefficient of elasticity in kilograms on millimeters. . . 821. 



Ultimate transverse strength in kilograms 378. 



Ultimate resistance to longitudinal crushing in kilograms 7364. 



Resistance to indentation to 1.27 mm. in kilograms . . . 2523. 

 (Sargent) 



Western Florida. 



2. T. californica, Torr. 



Stinking Cedar. California Nutmeg 



Transverse. Growth rings 1.5-2.5 mm. broad. Summer wood thin, some- 

 times one fourth to one half the spring wood into which it passes 

 gradually. Structure of the growth rings rather open throughout, 

 the tracheids somewhat rounded and in more or less irregular rows. 

 Medullary rays rather prominent, i cell wide, distant 2-14 rows of 

 tracheids. 



Radial. Ray cells straight ; the upper and lower walls rather thin, con- 

 spicuously double and frequently pitted ; the terminal walls very thin 

 and entire ; the lateral walls with rather variable, round, bordered 

 pits, i-6 per tracheid, the orifice very narrow. Bordered pits usually 

 somewhat distant, elliptical, in i row, sometimes in pairs. Pits on 

 the tangential walls of the summer tracheids small and obscure. 

 Spirals of the tracheids high, often very incompletely developed, 

 imperfectly 2-4 seriate, distant 5-125 //, or more, the angle 46.2, in 

 the summer wood obscure and finally obsolete. 



Tangential. Rays medium to low, the cells large, rather thin-walled. 



