FRUCTIFICATION. 
| Tas. XV. 
The parts of Fructification of the genus Apostasia; froma 
drawing made by Mr. Bauer, from dried specimens, in 
February, 1832. 
1. A portion of a spike of Apostasia nuda in the bud state; natural 
size. 
2. A side view of a bud; magnified 10 diameters. 
3. The same opened forcibly ; magnified 10 diameters. 
4. The same with the three sepals removed to shew the three petals ; 
magnified 10 diameters. 
5. The intermediate petal which represents the labellum of other Or- 
chidez ; this is narrower than the lateral petals, and tapers into 
a short unguis at its base; magnified 10 diameters. 
6. The two anthers in their natural position, all the floral envelopes 
having been removed; magnified 10 diameters. 
7. One of the anthers a little removed to shew the style which is held 
fast in the groove of.the opposite anther; magnified 20 diameters. 
8. The same with the other anther further removed to shew the style 
wholly disengaged ; magnified 20 diameters. 
9. Front view of an anther; magnified 20 diameters. 
10. Transverse section of the same; magnified in the same degree. 
11. A group of pollen-grains ; magnified 570 diameters. 
WA portion of the style, with the stigma; magnified 100 diameters. 
13. Transverse section of a portion of the ovarium; magnified 20 
diameters. 
14. A-small portion of the placenta, with ovula on it; magnified 100 
_ diameters. 
15. A group of ovula separated ; magnified 200 diameters. 
16. A transverse section of a nearly ripe seed-vessel of Apostasia Wal- 
lichii; magnified 20 diameters. 
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