But we have 
tin 
peculiar 
In fact the leaves are very 
nm 
differs in little except the leaves having shorter and hairy petioles, and in there being four petals 
two 
the plant. Ii 
and beautiful. 
wild specim 
all 
Tbe spots on the leaves of some Begonias, and which have been said to exist here also, are caused 
the presence of a stratum of air beneath the epiderm or skin; where 
en cells of the parenchym grow to the ends of those of the epiderm, m 
mined with the microscope the cells of the colourless skin look exactly lik 
the surface of the leaf, while that nart of the skin whiV.h ia otpp.ti has nn 
missing 
When 
If the 
spotted leaves are boiled, the spots swell up by the distension of the air beneath them, and then look 
exactly like brown blisters, the green being changed to brown by the act of boiling. This would 
therefore seem to be an organic peculi 
peculiarity of colour, and one not like! 
Unknown. It is rfiTnarlcahlfl tlmi. J* 
The history of the structure and its use is 
occurs 
where there are no breathing pores (stomates), and never on the under side, whose stomates are large, 
active and abundant. 
* This is a very different plant from B. papUlosa of the Botanical Register. 
