Introduction to the Study of Palæontological Botany

by John Hutton Balfour

Fig. 6. Scalariform vessels from coal (Balfour).

Fig. 7. Stigmaria, with markings of rootlets. One showing the papilla to which the rootlet was articulated (Hooker).

Fig. 8. Transverse section of Stigmaria, showing the vascular cylinder divided into wedges (Hooker).

Fig. 9. Tissues of Stigmaria, showing the inner portion of the vascular cylinder (Hooker).

Fig. 10. Transverse section of a Lepidostrobus, the fructification of Lepidodendron, showing scales and sporangia (Hooker).

Fig. 11. Ulodendron Taylori (Carruthers).

PLATE IV.

Fig. 1. Sigillaria Brownii, restored (Dawson).

Fig. 2. Sigillaria elegans, restored (Dawson).

Fig. 3. Lepidodendron, restored (Carruthers, Bot. Soc. Trans.)