OF PLATES. 
core, containing pips or seeds; a. is the calyx enlarged and 
united to the ovaries as seen in f, 12. ¢. the calyx crowning the 
Apple ; ov. the ovaries: f. 13. the Peach ; p. ihe part eaten ; 
s. the stone. 
Pl, 18. f. 1, An Acorn in its cup or cupule : f. 2. young fruit 
of the Oak or Acorn cut across; ov. three ovaries, containing 
each two ovules: f. 3. siliqua of the Wallflower bursting : f. 4. 
a Fig cut open, showing at. the flowers contained in it ; these 
flowers consist only of stamens and pistils : f. 5. fruit of Mulberry; 
in which the ovaries form a mass: f. 6. alternate leaves of the 
yellow Toad Flax ; f. 7. opposite leaves of the Pimpernel ; the 
middle pair are placed alternate to the pair above and below : f. 8. 
stem of the Loosestrife with three leaves in a whorl; showing that 
the whorl of leaves, a. b. c. are placed alternate to those of d. e. 
fand that g. h. i. agree with a, b. c. as to position; and j. k. 1. 
with d.e. f. £9. stem of Madder with four leaves in a whorl, 
showing a similar arrangement. 
Pl. 19. f. 1. A Rosebud, showing that the outer sepal s. is 
furnished with small leafy appendages answering to the leaflets 
of the leaf: f. 2. the third sepal: f. 3. the fifth or innermost 
which has no appendages except the one at the apex: f. 4, flower 
of the Water Lily; s. s, the four sepals, which are green outside 
and white within: f. 5. asepal: f. 6. two petals: f. 7. two, more 
internal petals reduced in size, and showing traces of anther at 
the top: f. 8. two stamens ; these five figures exhibit the gradual 
passage of the sepal to the condition of petal, of petal to that of 
stamen: f. 9. a petal of the Wallflower; c. the claw; 0. the 
blade: f. 10. petal of Pink: ¢, the claw; 6. the blade: f 11. 
flower of double blossom Cherry ; ov. the two ovaries changed into 
leaves: f. 12. a. 6. a stamen of the Cabbage Rose beginning to 
assume a petal-like form; ¢. a stamen in which one half of the 
anther is expanded into a petal-like part; d. a stamen expanded 
into a petal having lost its filament, and retaining half the 
anther; e. an irregular petal; f. a petal placed near the calyx, 
and assuming a kind of midrib: f. 18, the Proliferous Rose, in 
which s. s. are the sepals expanded into true leaves and sur- 
rounding the petals; s¢. the stamens placed on the stem which 
