144. PRINCIPLES OF BOTANY, ETC. 
flower, he says “ calyx abiit in fructum’?; when it ie 
included in the flower he says “¢ pistillum abiit in 
“<< fructum.’ ‘The fruit is also more accurately dis- 
tinguished, as it is a capsule, berry, &c: 
§ 136. 
We shall here pass by several of the less im- 
portant systems that are merely alterations of the 
foregoing. ‘These alterations consist sometimes of a 
single circumstance, of which the former authors 
had taken no notice. Of this PowreprrRa may 
serve as an instance: He took’ Tournefort’s sys- 
tem, and combining it with that of Rivinus, only 
separated the plants that) bear buds from those that 
have none. Another more worthy of consideration 
is that of Macnotius; though it too is of little 
use in practice. He forms his classes intirely on the 
calyx. Many similar systems may be found in 
ADANSON, an emment naturalist, «who has con- 
structed upwards of sixty systems, and has shewn 
evidently that many more might be imagined, if 
science was to derive any benefit from the labour. 
Cu '7: 
‘The systems we have’ detailed are either built on 
the fruit or the flower, and their parts: but none 
before GLepirscu had attempted one on the situa- 
fion of the stamina. His classes are the following : 
1. Thalamostemonis. 
2. Petalostemonis. 
3. Calycostemonis. 
