118 AN INTRODUCTION 
Structure, anfwering to the Characters fol- 
lowing. , 
Charaéters of the Clafs TETRADYNAMIAs 
CALYX—A Perianthium tetraphyllous, 
and oblong ; the Leaves of which are ovato- 
oblong, concave, obtufe, conniving, gibbous 
downwards at the Bafe, the oppofite ones 
equal and deciduous. The Calyx in thefe 
Flowers isa Neétarium ; which is the Rea- 
fon of the Bafe being gibbous. 
COROLLA—called Cruciform. Four 
equal Petals. The Claws plano-fubulate, 
erect, and fomewhat longer than the Calyx. 
The Limb plane. The Lamine widening 
outwards, obtufe, the Sides hardly touch- 
ing one another. The Infertion of the | 
Petals is in the fame Circle with the Sta- 
mina. 
STAMINA—The Filaments fix, and 
fubulate ; of which two that are oppofite are 
of the Length of the Calyx ; the other four 
fomewhat longer, but not fo long as the Co- 
rolla. The Anthere oblong, acuminate, 
thicker at the Bafe, erect, and with their 
Tops leaning outwards. There is a necta- 
riferous Glandule, which in the different 
Genera hasvarious Appearances; it is feated 
clofe to the Stamina, and particularly to the 
two 
