[098]

Fig. l. Silicified trunk of Cycadites megalophyllus, from the Dirt bed in the Isle of Portland. (Original.)

Fig. 2. Portion of the Base of Fig. l. See V. I. p. 497, Note. (Original.)

In Plates 60, 61, A represents the central mass of cellular tissue. B the single circle of radiating woody plates. C the circle of cellular tissue, surrounding B. And D the case or false Bark, surrounding C. And in Pl. 61, Fig. 1, b, represents a second circle of radiating woody plates.