PONTEDE'RIA CiERU'LEA. 
BLUE PONTEDERIA. 
Order. 
MONOGYNIA. 
Natural Order. 
pontederea:. 
Native of 
Height. 
Flowers in 
Duration. 
Introduced 
N. America. 
2 feet. 
August. 
Perennial. 
in 1830. 
No. 551. 
The present genus was named by Linneus, in 
compliment to Julius Pontedera, who was professor 
of botany at Padua, and a strenuous opponent of 
the sexual system of the great Swede. 
This plant is known in cultivation as the species 
cserulea. From the unexpected loss of the speci- 
men from which our drawing was taken, we are un- 
able to determine whether or not it be more than a 
variety of cordata. When the plant flowers again 
this shall be noticed. 
It is a desirable aquatic, and requires no further 
care than planting in a pond, a foot beneath the 
water; or it may be kept in a pot, plunged in a cis- 
tern, having change of water. A small oval cistern, 
laid with bricks, and lined with Roman cement, with 
a supply and waste pipe may be readily constructed 
in almost every garden ; and would afford many ad- 
vantages in connection with the culture of plants in 
pots, and convenience also for watering those in the 
borders. In such a cistern the present and other 
hardy aquatics may be grown with success. It 
may be propagated by division of its roots, and 
should be planted in clay. 
Class. 
HEXANDR1A. 
