266 PHARMACEUTICAL BOTANY 
corolla, as in Lychnis, the structure resulting is called an ANTHO- 
pPHORE; if between corolla and androecium, as in Passiflora, a 
Gonorpuorg; if between androecium and gyncecium, as in Geum, 
a GyNnopuorE. In the flowers of the Umbellifere, the receptacle 
elongates between the carpels producing the structure called a 
CARPOPHORE. 
Tue Pericone.—The perigone or perianth is the floral 
envelope consisting of calyx and corolla (when present). 
When both whorls, i.e., calyx and corolla, are present the 
flower is said to be dichlamydeous; if only calyx is present, 
monochlamydeous. : 
Fic. 180. Fic. 181. 
Fic. 180,—Chorisepalous and hypogynous calyx of the Pimpernel (Anagallis). 
Fic. 181.—Gamosepalous and bilabiate calyx of the Deadnettle (Lamium). 
Fic. 182.—Urceolate calyx of the Henbane (Hyoscyamus). (After Small.) 
Tur Caryx.—The Calyx is the outer whorl of modified 
leaves. Its parts are called Sepats. These may be distinct or 
separated from one another when the calyx is called CHo- 
RISEPALOUS, APOSEPALOUS or PoLysEpALous. If the sepals are 
more or less united at their margins, the calyx is called GAmMo- 
SEPALOUS or SYNSEPALOUS. 
The sepals are usually green—foliaceous or leaf-like—but 
may be brilliantly colored, hence the term petaloid (like the 
petals) is applied. Examples of flowers having a petaloid 
calyx: Tulip, Larkspur, Columbine and Aconite. 
In the Daisy Family, etc., the calyx is modified in the form of 
teeth, bristles, hairs or awns and is then called the PAPPus. 
_ Ina gamosepalous calyx, when the union of sepals is incomplete, 
the united portion is called the tube, the free portion, the /imb, the 
orifice of the tube, the throat. 
