240 
MR. R. A. ROLFE ON THE APOSTASIEJE. 
A. good series, especially of flowering specimens, of this genus 
is much wanted, many of those which I have seen being very 
imperfect in this respect. Of all the specimens of A. Wallichii 
cited only one bears examinable flowers. I should be extremely 
obliged to any one who would send specimens, especially from 
localities not here enumerated, for it is clear that the range of 
the species is at present very imperfectly known. 
DESCRIPTION OF PLATE XLVIII. 
Fig. 1. Diagram showing the arrangement of the flower in Apostasiee. 
2. A bud of Neuwiedia Griffithii, Reichb. f., x 2 diam. 
3. Expanded flower \ 
4. Lateral sepal 
A Ls | of same, X 2 diam. 
7. Oolumn, with stamens and style, | 
8. Capsule, and in section, ) 
9. Seed of same, highly magnified. 
10. Flower of N. Lindleyi, Rolfe, all the segments, except the dorsal sepal, 
being thrown back to show the position of the stamens and style, X 
2 diam. 
11. Column with stamens and style of same, the anther on the right bent 
down to show its versatile insertion, X 3 diam. 
12. Section of ovary of same, showing axile placentation, x 3 diam. 
13. Monstrous flower of N. Curtisii, Rolfe (fully described on page 234), 
showing abnormal elongation of the floral axis, the parts being 
carried up out of their normal position, x 2 diam. Note the union 
of the filaments, the darker central nerves, and the insertion of 
the style, which is only an exaggerated development of their normal 
arrangement. 
14. Pollen of same, highly magnified. 
15. Bud of Apostasia Lobbii, Reichb. f., x 2 diam. 
16. Segment 
17. Column with stamens (back view) and style : 
18. Ditto (side view, one stamen removed) T of same, X 4 diam. 
19. Stamen (front view), showing introrse dehiscence, 
20. Segment of 4. nuda, R. Br., x 4 diam. 
21. Column with stamens (back view on right hand, front view on left) 
and style of same, showing the equal basifixed anthers, as in A. Lobbii, 
X 4 diam. 
22. Segment of A, Wallichü, R. Br., x 4 diam. 
23. Column with stamens (back view) and style of same, showing the 
staminode adnate to the back of the style, x 4 diam. 
24 
- À stamen of same removed (front view), showing the versatile arrange- 
ment, the unequal base of the anther, and the longitudinal dehiscence, 
X 4 diam. 
