448 EXPLANATION OF THE FIGURES. 



PLATE VI. 



Figs. 1 — 10. A?ieura multifida. 



FIG. 



1. A delicate branch seen from above, x 10. 



2. Fore-end of a growing shoot, seen from above, x 400. 



3. Longitudinal section of a similar shoot. (The section has not touched the 



cell of the first degree.) x 300. 



4. Longitudinal section of inflorescence, with a fruit-rudiment lately formed, 



and enclosed by a calyptra already much enlarged, X 50. 



5. Very young fruit-rudiment, detached, x 300. 



6. Longitudinal section of a more advanced fruit-rudiment, X 150. 



7. Longitudinal section of the upper part of the fruit-rudiment at the com- 



mencement of the formation of the capsule, x 400. 



8. Fruit-rudiment somewhat more advanced, enclosed by the large calyptra 



which is cut through longitudinally. On the left near the calyptra are 

 two abortive archegonia. X 50. 



9. Longitudinal section perpendicular to the surface through the gemmiferous 



portion of a shoot. In one of the epidermal cells a bud is in process of 

 formation. A two-celled bud lies loose in another epidermal cell which 

 has been torn, x 300. 



10. Two gemmse, one seen from the side, the other (which is about to send out 



a capillary shoot) seen from the front. 



Figs. 11 — 15. Aneura pinguis. 



11. Fore-end of a growing flat shoot seen from above, x 400. 



12. Longitudinal section perpendicular to the surface of a thicker shoot. It 



bears the rudiment of an antheridium. x 300. 



13. A similar longitudinal section not exactly through the middle of the shoot, 



X 300. 



14. A young antheridium seen from the outside, x 300. 



15. Rudiment of an archegonium seen from above, the microscope being 



focussed somewhat below the apex of the organ, x 300. 



Figs. 16 — 24. Blusia pusilla. 



16. Barren gemmiferous shoot seen from below, x 25. 



17. Growing fore-end of a shoot seen from above, x 200. 



18. End of a delicate shoot after the removal of the under leaves, seen from 



below, x 400. 



19. Section perpendicular to the surface through the fore-end of a growing 



shoot, x 200. 



20. Similar section of a shoot where the latter has a bud-receptacle in process 



of formation, x 200. 



21. Longitudinal section of a further developed bud-receptacle, x 60. 



22. Portion of a longitudinal section of a less developed bud-receptacle, upon 



the inner wall of which rudimentary gemmse, in different stages of 

 development, are seated, x 200. 



