Plate IV. 



Figs. 1-6. Turhinaria ? fmi/ormis (Harv.) 



1. A branch of steril« frond. 



2. A young frond with leaf-like " rami." 



3. The same, n, a leaf. 



4. A |)art of fertile branch with cymose receptacles at the axils. 



5. The same; a fertile lateral branch growing at the axil formed 

 by a fulcratit "ramus" and the stem. 



6. A sterile lateral l)ranch, the fulcraut " ramus " being leaf-like. 

 Fig. 7. Forma davlycra. A branch of sterile troiitl. 



Figs. 8-12. Coccoj^hora ? Imperata. 



8. Frond in ca. | nat. size; one branch shown in full. 



9. A lateral ramulet in nat. size. 



10. A leaf in nat. size. 



11. A biiurcated leaf, x2. 



12. A lateral ramulet with upper portions of the basal leaves left 

 out. X 10. 



