Description of Plate.
PLATE II.—A NEW GENUS BELONGING TO THE FAMILY
USTILAGINEÆ.
| FIG. | 1. | Vertical section of a leaf of Nymphæa stellata showing spores in substomatic spaces x 360. |
| " | 2. | Section through the entire thickness of a leaf showing distribution of spores x 119. |
| " | 3. | Section through the upper part of a healthy leaf, showing large substomatic space x 360. |
| " | 4. | Fine mycelium giving origin to thicker fertile filaments bearing young spores x 680. |
| " | 5. | Vertical section through entire thickness of a healthy leaf of Nymphæa stellata showing subepidermal spaces, great spaces over the inferior epidermis and idioblasts x 119. |
| " | 6. | Fine mycelial filaments with simple haustoria and thicker sporiferous hyphæ. |
| " | 7. | Head of a promycelial filament with sporidiiferous cells. |
| " | 8. | Germinating spore still connected with the Mycelium x 970. |
| " | 9. | Spore with promycelium. |
| " | 10. | Sporiferous filaments and spores in various stages of development x 970. |
| " | 11. | Conjugating pair of sporidia x 970. |
| " | 12. | Sporidia bearing secondary sporidia, and still attached to the promycelium. |
| " | 13. | Spore, promycelium, and conjugating sporidia. |
| " | 14. | Conjugating sporidia. |
| " | 15. | Portion of epidermis with promycelia emerging from the stomata x 680. |
| " | 16. | Terminal portions of promycelium showing septation and sterigmata. |
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