EXPLANATION OP THE PLATES. 
247 
PLATE THE TENTH. 
Parts of the Flowers, especially the Sexual Organs . 
Fig. 1. Crambe Tatarica. Cruciferce. A flower from 
which the integuments have been pulled off, magnified. 
a. Ovary. * 
b. Stigma sessile. 
c. Stamens four, tetradynamous ; filaments of the four 
longest stamens two-forked at top. 
d. Nectaries, two. 
Fig. 2. The entire flower of the same, of its natural size : 
calyx 4-sepaled, rather open ; corolla 4-petaled ; tetrady- 
namous. 
Fig. 3. Reseda Phyteuma. Resedacece. Petal irregular, 
jagged, magnified. 
Fig. 4. Gypsophila fastigiata. Caryophyllece. Flower 
magnified and cut longitudinally to show the insertion of 
the petals and stamens on the gynophore. 
a. Calyx. 
1. Corolla. 
c. Stamens. 
d. Ovary. 
e . Gynophore. 
Fig. 5. Silene bupleurifolia. Caryophyllece. A flower with 
the tubular, 5-toothed calyx slit down, and pulled back 
that the insertion of the petals may be seen ; petals 5, 
clawed, also having the limb pulled back to show the fila- 
ments. 
a. Gynophore from whence grow the petals, stamens, 
and pistill. 
b. Petals, the limb two-cut, with a claw appendiculated 
to their tips. 
c. Stamens ten, five opposite and five alternate. 
d. Ovary with three styles. 
e. Calyx slit down. 
Fig. 6. Ranunculus bulbosus. Ranunculacece. A vertical 
section of the flower to show the insertions of the different 
parts. 
a. Calyx. 
b. Corolla. 
c. Nectariferous gland scalelike at the claw of each petal. 
d. Stamens indefinite, hypogynous. 
e. Ovary. 
f. Gynophore. 
