7- The anther taken out of the clinandrium to shew that at this time its 
dehiscence is not complete; magnified 10 diameters. The grains of 
pollen cohere so slightly that they may be separated by the point 
of the finest hair-pencil. 
8. A group of grains of pollen, from the same anther, in the most perfect 
state of maturity; they are all either 3 or 4-celled, and emit many 
thread-like processes, which however Mr. Bauer does not find in 
all Orchideous plants ; magnified 400 diameters. 
9. A side view of the same column and organs of fecundation ; magnified 
10 diameters. This figure shews the bulging of the glutinous ex¬ 
udation from the surface of the stigmatic cavity. 
10. A fully expanded flower; natural size. 
11. A front view of the column of the same, the floral envelopes having 
been removed ; magnified 10 diameters. The pollen-masses have 
fallen out of the cells and are hard and dry, like wax. 
12. A back view of the anther of the same flower; magnified 10 diame¬ 
ters. At this time the anther is becoming brown, and shrivelling. 
13. The same seen in profile. 
14. The clinandrium, with the anther removed; shewing the elongated 
filament to which the anther was attached, and the pollen-masses 
resting in the cavity; magnified 10 diameters. 
15. The labellum expanded; natural size. 
16. A longitudinal section of the column, &c. of the expanded flower; 
magnified 10 diameters. At this age the viscid fluid in the stig¬ 
matic cavity is nearly absorbed; and has only left some remains 
of a very clear glutinous substance. 
17- A pair of pollen-masses, belonging to one cell of the anther, in their 
natural position; magnified 10 times. 
18. The same separated. 
19. Some grains of pollen of the expanded flower, after having been 
soaked in water; magnified 400 diameters. 
20. The same unsoaked. 
21. Transverse section of part of the ovarium; magnified 10 diameters. 
