ARETHUSA. 379 
tween the stigma and the broad attachment of the la- 
bellum, is a space communicating directly with interior 
of ovary, no placentz at this time. 
3. Lateral view of flower. 
3a. Front view of ditto. 
Oblique view of column and lip. 
Front view of lip. 
Lateral of column. 
Front vertical of anther. 
Pollen masses ; 8a, Pollen grains. 
9. Front of column anther removed. 
10. Transverse of ovary. 
12a. Ovula. 
ЭМ т» 
Pl. CCCXLIV. 
1. Apex of axis, with bractez and their flower buds. 
2. Qne of the upper flower buds, at the angles gibbosities 
are traceable, these are the rudiments of the sepals. 
3. The lower front flower bud of the above no. 1, more en- 
larged, the three inner gibbosities mark the commence- 
ment of the petals. Intermediate stage vide Рі. 
CCCXLIII. Fig. 1. la, 14. 
4. More advanced flower bud, parts spread out, lip and 
anther erect and oppositely separated, no trace of the 
auricule now exists, and none of the stigma. 
5. Vertical view of a more advanced flower, the central 
space is chiefly occupied by the erect anther, part of the 
labellum is also visible. 
5a. Same parts spread out, no appearance of the auricule 
or of the stigmata. 
6. Anterior view of flower bud, the sepals have not yet 
closed up so as to include the petals. То this series be- 
log2,2a Pl. CCCXLII. . ` 
ба. Same, two lateral sepals removed and the labellam de-_ 
