TERMINOLOGY: 
EN i 
=F 
§ 69. 
‘The cums, (gluma), is the peculiar calyx of the 
Grasses. It contains in general several flowers. 
The leaves of which it consists are called valves, 
(valuug). The kinds are as follows : 
1. Univalve, (wnivalvis), that consists of only one 
valve, as in the ray grass, Lolium perenne. 
2. Bivalve, (bivalvis), with two valves, as in most 
Grasses, fig. 96, 977, 102, 104. 
3. Trivalve, (trivalvis), when there are three 
valves, as in Panicum miliaceum. 
4, Multivalve, (multivalvis), that is composed of 
many valves. 
5. Coloured, (colorata), that is of another colour 
than green*. 
§ 70. 
The CoMMON PERIANTHIUM, (anthodium), is a 
calyx which contains a great number of flowers, in 
such a manner as that these flowers appear to form 
ut one, a sin dandelion, Leontodon Taraxacum, blue 
* The corolla of the Grasses, which is inclosed in the glu- 
ma, is also called gluma, because it hardly differs in appear- 
ance from the calyx, and, properly speaking, is but an interior 
calyxs In accurate description, the word calyx or corolla is 
prefixed to gluma. The gluma of the corolla 1s somewhat 
finer than that of the calyx, and the inner valve is membrana- 
ceous, but the outer green. This green valve is either without 
an arista (mutica), or awned (aristata). The awn, (arista), 
$ 49, is only found on the corolla of Grasses, fig. 103. 
bottle, 
