48 AN INTRODUCTION 
Cornus the Involucrum is red, and Cordate; 
Heart-fhaped. \n Aftrantia the Involucrum 
is colored; and in Pal/ms the Spathe are 
bloody ; where the Corolla is wanting, the 
Perianthium is wont to be more colored 
efpecially when the Flowers are blowing, as 
in Ornithogalum, Perficaria, and Polygonum ; 
where either the Calyx or the Corolla is 
found to be lefs colored, the Leaves ofteri 
take a Color, as in Amaranthus tricolor. 
In moft Plants the STAMINA and PE- 
TALS are inferted into the Receptacle, in 
the Bottom of the Flower; but the Plants 
of the Clafs Icofandria * have a monophyl- 
lous Calyx, the inner Side of which is girt 
with a Line, to which the Stamina and Pe- 
tals are faftened; and the Calyx is alfo ob- 
ferved to fupport the Flowers in fome other 
Plants, as in Lythrum, Epilobium, Ocnothera, 
Ammania, Ifnarda, Peplis, and Eleagnus. In 
fome Plants the Receptacle is lined on all 
Sides with the Perianthium, and the Co- 
rolla adheres to the Perianthium as though 
it were glued to it; this is found in the Cuz 
curbitaceous + Plants, fuch as Cucurbita, Pa/= 
Siftora, Fevillea, Momordica, Trichofanthes, 
* See Part II. Chap. 15. 
¢ So called fromtheir Affinity to the Cacurbitae 
8 
Cu- 
