LIST OF ILLUSTRATIONS 



FIG * PAGE 



i. Lyginodendron oldhamium. Restoration . . Frontispiece 



2. Catamites Suckowii. Medullary cast . . 17 



3. ,, , , Medullary cast ... .18 



4. Catamites, sp. Part of a transverse section of a young stem 21 

 S- 1 1 sp. Transverse section of a very young twig . . 22 



6. 1 1 sp. Part of a radial section through primary wood . 23 



7. ,, sp. Radial section of a decorticated stem . . 25 



8. Catamites communis. Tangential section of wood ... 27 



9. , , , , Tangential section of wood showing a branch 32 



10. Caiamodendron intermedium. Part of transverse section of stem 35 



11. Catamites (Protocatamites) pettycurensis. Transverse section . ^y 



12. Catamites, sp. Transverse fracture through a node showing leaf- 



sheath . . .... 38 



13. Catamites, sp. Part of a transverse section close to a node 39 



14. , , sp. Transverse section of a bud . . 40 



15. ,, sp. Part of a transverse section of a large root 43 



16. , , sp. Transverse section of small tetrarch rootlet . 45 



17. Catamostachys Binneyana. Radial section of part of cone 50 



18. ,, ,, Transverse section of cone . 51 



19. ,, ,, Transverse section of axis of cone 52 



20. , , , , A single peltate sporangiophore 54 



21. ,, ,, Part of tangential section of cone 55 



22. ,, ,, A single sporangium. A-D, spores . 56 



23. Catamostachys Casheana. Tangential section . . 57 



24. A. Palaeostachya. Radial section of cone. B. Archaeocalamites 



radiatus. Part of cone showing axis bearing sporangiophores 61 



25. Paiaeostachya pedunculata . . 62 



26. Palaeostachya vera. Transverse section of cone 65 



27. , , , , Diagrammatic longitudinal section of cone 66 



28. Cingularia typica. Part of branch .... 68 



29. , , , , Enlarged diagram of a verticil of the cone 69 



30. Archaeocalamites radiatus. Branch bearing whorled leaves 71 



31. ,, ,, Single leaf . . 71 



32. Macrostachya infundibuliformis. Cone borne laterally on a 



branch ....... 73 



33. Annularia brevifolia. Twigs bearing whorled leaves ... 75 



34. Asterophyllites densifolius. Branch bearing distichously arranged 



twigs . ...... 77 



35. Sphenophyllum, sp. Branched stem bearing leaves and cone 87 



xix 



