598 
Transactions of the JRoyal Society of South Africa. 
EXPLANATION OF PLATES XLII, XLIIL 
FIG. 
1. Petal of peloriate cleistogamous flower. 
2. Odd sepal coherent with side petals, one of which is somewhat petaloid. 
3-5. Side petals showing various stages of development. 
(). Side petal of single-flowered spike showing striking similarity with petal of 
chasmogamous species. 
7. Lip with tooth-like appendage on one margin. 
8, 9. Lip with basal thickening. 
10. Well developed lip of single-flowered spike. 
11. Flower with well-developed petals. Details of floral parts figured in 6, 10, 12 
and 13. 
12. 13. Back and front view of column of the flower figured in 11. 
14. Rostellum arms 2, undivided. 
15. Eostellum arms 2, one arm lobed. 
16. Rostellum arms 2, both lobed. 
17. Eostellum arms 4, approximating. 
18. Eostellum arms 4, the two pairs widely separated. One arm shows two masses of 
sporogenous (?) tissue at its tip. 
19. 20. Eostellum arms 4, the two lowest sterile. 
21. Eostellum arms 4, the two lowest divided. 
22. Eostellum arms 3, in one of which the sporogenous (?) tissue is lobed. 
23-25. Extreme abnormalities of column. 
26. Enlarged tip of rostellum arm showing embedded mass of sporogenous {?) tissue, 
27. Section through sporogenous (?) tissue of very young flower. 
28. Ovule from the youngest ovary examined, showing hypodermal megaspore- 
mother-cell. 
29. Section through sporogenous (?) tissue of older flower. 
30. Young ovule : nucleus of mother-cell in synapsis. 
31-33. Older ovules with mother-cell still in synapsis. 
34. Isolated cells of sporogenous (?) tissue from flower with dehisced ovary. 
35, 36. Stages in development of embryo. 
37, 38. Ovules with suspensors almost reaching micropyle. 
39. Embryo in transverse section. 
40-43. Polyembryony. 
44 Ovule with two mother-cells. 
45. Dehiscent capsule showing narrow valve below odd sepal. 
46. Diagram to show method of capsular dehiscence. 
47. Early stage in germination of seed. 
48. Two embryos gerniinating within one seed coat. 
49. Fungi present among germinating seeds. 
