Bs ‘ . s 
EXPLANATION OF THE PLATES. 4) 243 
PLATE THE SEVENTH. 
Inflorescence. 
Fig. 1. Ammi majus. Umlellifere. Fiowers in a.com- 
pound umbell. 7” 
a. Involucrum. 
£. Involucellum. . i 
Fig.2. Achillea crithmifolia. Composite. Calathides 
_ disposed in a corymbus. 
Fig. 3. Heliotropium Indicum. Boraginee. Spike cir- 
‘ cinate ; flowers one-sided. 
Fig. 4. Syringa vulgaris. Jasminee. Flowers in a 
yise. a" 
fig. 5. Populus tremula. Salicinee. iF lowers of the 
female plant in a catkin. 
Fig. 6. A detached flower of the same, to show the 
palmated, fringed bractea upon which it is supported. 
Fign he Cephalanthus occidentalis. Ruliacee. Flowers 
in a head. 
Fig. 8. Sambulus humilis. Caprifolracee. Flowers in 
a cyme. 
Fig. 9. Allium obliquum. Asphodelee. Flowers in a 
simple umbell or bouquet; spathe two-valved; scape three- 
sided. 
Fig. 10. Dianthus capitatus. Caryophyllee. Flowers in 
a bundle. 
Fig.11. Arum maculatum. Arozdee. Spadix separated 
from the spathe. = 
a. Tip clubshaped. 
i. Ring of Bicnde about the middle, each terminated by 
a filament. 
c. Ring of sessile anther s, below the glands. 
d. Ring of sessile conglomerated ovaries, at the base. 
Fig. 12. The flowers 2 the same, in their spathe. 
a. The hoodlike spathe. 
£. The lower bellying part of the spathe. 
c. The spadix. 
R 2 
