1914] GROOM—TRACHEID-CALIBER 203 
TABLE II—Continued 
| MEAN DIAMETER OF SPRING TRACHEIDS 
a2,.P, Coulteri.... . 
13. P. sabiniana.... 
Pseudo- 
strobus 
Taeda 
Pinaster 
DISTRIBUTION, SOIL, ALTITUDE, ETC. 
ee ad 
os ee ee 
Ove es oe 
Of e 66 ee ee eS 
O88 oe 2 8 we 
Spt He ee eee 6 
39.5(P) 
39-5(P) 
40(P) 
a ad 
47(A) 
47(P) 
ee ee ete ie te ae 
ed 
49.5(A) 
50.8(A) 
a ee ee er 
44(A) 
ee ed 
re 
50.8(A) 
Warm dry slopes on the coast 
ranges of California; 3000- 
6000 ft.; warm temper: 
(see subsequent comments). 
Dry foothills of W. C Se, 
among evergreen oaks; su 
tropical. 
Sandy soil on coast of Califor- 
nia; subtropical (see subse- 
q mments). 
Sandy soil to loam, capable of 
gr 
Sandy it gree in less dry 
soil than Eg Banksiana; 
wideaiad in Canada and 
N.E. be States; warm 
temper: 
Moist sank or rather moist for- 
sis; Ala Florida, 
nt of Gulf fof jee: sub- 
PP ork to Florida, Louisi- 
ana, and Texas; subtropical. 
rarely low 
etc. 
Tropical; Cuba, Isle of Pines. 
| 7 that recorded hy Passa, 
