in July, 1829, immediately on being removed from a small 
tub to the larger aquarium of the stove. 
Every where, I believe, in our collections, this plant has 
been cultivated under the name of PonrEepErtiA crassipes, 
in consequence of that name having been brought more 
immediately into notice-by the beautiful figure (in Sprx 
and Martius’ Genera and Species of Brazilian plants) of 
his P. crassipes. But if that plant be constant in the 
colour of its flowers, as there represented, to the absence 
of the glands on the filaments of the stamens, and to the 
presence of them of a violet black colour on the germen, 
as there described, ours must be distinct, and is, I think, 
quite identical with the P. azurea of Swartz. The flowers 
ofour plant become quite blue when dry, which may ac- 
count for Swarrz’s name. Humsoxpr describes the colour 
more correctly, from specimens gathered in New Grenada. 
Our valued friend Mr. Parwer sent us from Demerara dried 
specimens, which had the flowers apparently wholly blue ; 
but a coloured sketch of the flower, made from the living 
plant, was in every respect like those here figured. Hanxe 
met with the species at Guayakil, and Dr. Giuuies 1n pools 
of water at Buenos Ayres. The plant must, therefore, 
have a very extensive geographical range, and seems to 
hold the place in South America, that PonrepERiA cor- 
data does in the Northern part of that vast continent. 
SS 
Sie a er 
Fig. 1. Anther and portion of the Filament. 2. Pistil. 3. Section of the 
Germen. 4, Leaves aa Root. 5. Detached Leaf,—All but fig. 4 and 5 more 
or less magnified. 
