84 
INFLORESCENCE. 
6th. Cyme , (Fig. 90, c,) resembles an umbel in having its common 
stalks all spring from one centre, but differs in having those stalks 
irregularly subdivided ; as the snowball and elder. 
Fig. 90. 
7th. Corymb , (Fig. 90, a,) or false umbel; when the peduncles rise 
from different heights above the main stem, but the lower ones being 
longer, they form nearly a level or convex top ; as the yarrow. 
8th. Fascicle , (Fig. 90, &,) flowers on little stalks variously insert¬ 
ed and subdivided, collected into a close bundle, nearly level at the 
top; as the sweet-william; it resembles a corymb, but the flowers 
are more densely clustered. 
9th. Head , (Fig. 90, c,) or tuft, has sessile flowers heaped together 
in a globular form; as in the clover, and button bush, ( cephalanthus .) 
10th. Ament or catkin, is an assemblage of 
flowers, composed of scales and stamens, or 
pistils arranged along a common thread-like re¬ 
ceptacle, as in the chestnut and willow; this, 
though described under the divisions of the 
calyx, is only a mode of inflorescence. The 
scales of the ament are properly the calyxes ; the 
whole aggregate, including scales, stamens or 
pistils, and filiform receptacle , constitutes the 
Fig. 91. ament. At Fig. 91, is the representation of the 
ament of the poplar, containing pistillate flowers; 
this is oblong, loosely imbricated, and cylindri- 
||!|!^ b cal; the calyx is aflat scale, with deep-fringed 
partings. At 6, is a representation of the fertile 
or pistillate flower; the calyx or bract is a little 
below the corolla, which is cup-shaped, of one 
petal, and crowned with an egg-shaped, pointed 
germ; the germ is superior, and bears four 
(sometimes eight) stigmas. 
The staminate ament resembles the pistillate, except that its co¬ 
rolla encloses eight stamens, but no pistil. The poplar is in the 
class Dimcia, because the pistillate and staminate flowers are on 
Cyme—Corymb—Fascicle—Head—Ament. 
