igig] 



BELYE A— SEQUOIA 



469 



Fig. I. — Sequoia washingtoniana (virgin growth): radial section showing ordinary 

 typt of isolated detached ray tracheid. 



Fig. 2. — Radial section (mature wood) showing ray with two tracheid cells inter- 

 spersed between ray parenchyma cells; tracheids not marginal, but components of a 

 ray one cell high. 



