CHAPTER II 
CALYCIFLOR: 
HE families included in this subclass or sub- 
division consist of plants whose flowers are 
provided with a calyx and corolla, and the stamens 
are inserted on the calyx or disc, being either peri- 
gynous or epigynous, the ovary being superior or 
inferior respectively. 
The petals are distinct. The flowers are regular 
except in Leguminose, where they are papilion- 
aceous. 
The flowers in Haloragez are generally apetalous 
and unisexual, as they are in Cucurbitacez. 
In Parnassia amongst the Saxifragez the stamens 
are hypogynous, as they are in Droseracez. In 
some of the Crassulacez the stamens are epipetalous. 
In a few of the Leguminosz the stamens are also 
hypogynous. 
_ The group includes fifteen British families, of 
which four are described here, viz. Leguminosz, 
Rosaceze, Umbelliferz, and Hederacez, and fourteen 
species. 
