PHARMACEUTICAL BOTANY 
188 
When of nearly cylindrical form, the corolla is Tubular, as in the 
Honeysuckle, and Stramonium. 
Funnel-form (Infundibuliform), such as the corolla of the common 
Morning Glory, a tube gradually enlarging from the base upward 
into an expanded border or limb. 
Campanulate, or Bell-shaped, a tube whose length is not more 
than twice the breadth, and which expands gradually from base to 
apex. Examples: Canterbury Bell, Harebell. 
Urceolate, or Urn-shaped, when the tube is globose in shape and 
the limb at right angles to its axis, as in the official Uva Ursi, Chima- 
phila and Gaultheria. 
Caryophyllaceous, when the corolla consists of five petals, each 
with a long slender claw expanding abruptly at its summit into a 
broad limb. Examples: Carnation and other members of the Pink 
family. 
The Androecium or Stamen System.— The andrcerium is the single 
or double whorl of male organs situated within or above the corolla. 
It is composed of stamens or microsporophylls. 
' A complete stamen (Fig. 93Z)) consists of a more or less slender 
stalk portion called a filament and a terminal appendage called the 
anther or microsorus. The anther is generally vertically halved by 
an upgrowth of the filament, called the connective, dividing the anther 
into two lobes. 
Number of Stamens.—When few in number, stamens are said 
to be definite ; when very numerous, and not readily counted, they 
are indefinite. The following terms are in common use to express 
their number: 
Monandrous, for & flower with but one stamen. 
Diandrous, with two stamens. 
Triandrous, with three. 
Tetrandrous , with four. 
Pentandrous, having five. 
Hexandrous, six. 
Polyandrous, an indefinite number. 
The most primitive flowers have numerous stamens, but passing 
from these to those of more evolved families there occurs a gradual 
reduction from many to ten, as in Caryophyllacece, Leguminosoe and 
