74 PRINCIPLES OF BOTANY, ETC. , 
3. The flower formed like a star, (_flos disciformis), 
is a body seated at the top of the stem of mosses ; it 
is flat, and furnished with broad leaves: it is con- 
spicuous on the common polytrichum, Polytrichum 
commune, tig. 142. 
§ 66. 
The coloured part which distinguishes itself by its 
outward appearance, which precedes the fruit, and 
contains the necessary organs of generation, is called 
the FLOWER, (los). It is composed of sundry parts, 
viz, the Calyx, Corolla, Nectarium, Stamina and 
Pistillum. 
The three first parts are not essential parts of the 
flower, but the two last are indispensable in every 
flower. 
S 67. 
The caLtyx is a general name for ali the little 
leaves or envelopes, that are commonly of a green 
colour, and surround the flower on the outside. 
The following are species of it: Perianthium, Glu- 
ma, Anthodium, Squama, and Pappus. 
§ 68. 
The prriantu, (Perianthium), is that species of 
Calyx which immediately incloses a flower. It is, 
1. Abiding, (persistens), remaining after the flower 
falls off, as in the henbane, Hyoscyamus niger. 
2, Deciduous, (deciduum), that falls off at the 
same time with the flower, as in the lime tree, Tilia 
PUrOpaa. 
Be Wither- 
