338 BOTANICAL GAZETTE [APRIL 
PLATE XXV : 
Fic. 7.—Abies concolor: radial section, showing wound tissue on the left 
and ray tracheids on the margin of both rays; X 500. 
Fic. 8.—Abies homolepis; showing marginal ray tracheids; X 600. 
Fic. 9.—Abies amabilis: showing vertically elongated ray tracheid; X 800. 
Fic. 10.—Abies homolepis: showing element with both bordered and 
simple pits; 800 
Fic. 11.—Abies Veitchii: showing presence of ray tracheid conterminous 
with parenchyma cell; 0. 
Fic. 12.—A bies husaeibepis: high power to show ray tracheid; 1000 
Fic. 13.—Abies Veitchii: an element with pits very slightly bordesdd; 
X 600. 
