1104 Thompson. — Anatomy and Relationships of the Gnetales. 
Fig. 31. E. californica : tangential section of false ray. x 125. 
Fig. 32. E. trifurca : ‘false’ ray. x 250. 
Fig. 33. E. monostachya \ subterranean stem, showing broad rays extending to pith, x 250. 
Fig* 34. E. Gerardiana\ bast and cambium, x 125. 
Fig. 35. E. ciltissima : tangential section of bast, showing tapering sieve-tubes and lateral 
sieve- plates, x 250. 
Fig. 36. E. altissima : radial section of bast, showing sieve-tube with sieve-plates in face view, 
x 667. 
PLATE XCVII. 
Fig. 37. E. vionostachya : young stem showing epidermis and cortex, x 330. 
Fig. 38. E. altissima : leaf-base, x 60. 
Fig. 39. The same : vascular bundle with transfusion tracheide. x 667. 
Fig. 40. The same : seedling leaf, showing centripetal transfusion tissue and bundles dis- 
appearing. x 500. 
Fig. 41. The same : seedling leaf-tip with group of centripetal tracheides. x 667. 
Fig. 42. E. Gerardiana : longitudinal section of leaf-base, showing absciss periderm, x 500. 
