/ . 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 exudation
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 diameters.
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 stigmatic
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.
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