THE FLOWER. 
80 
conducting tissues of the style, either through the 
papillae, as in Malva, or through the middle lamella of 
two neighboring papillce, as in Atropa Belladonna. 
The important tissue of the style is the conducting 
tissue; in styles which are hollow it forms the lining 
of the canal, the cells resembling those of the stigma- 
epithel ; in styles that are solid the conducting 
tissue occupies the central axis and consists of some- 
what elongated cells, the walls of which are generally 
thick, frequently strongly refractive and possess the 
property of swelling, being furthermore separated by 
large intercellular spaces. Surrounding the conduct- 
ing tissue are thin-walled parenchyma cells, in which 
the fibrovascular bundles are distributed, the num- 
ber of groups of the latter corresponding to the num- 
ber of carpels that compose the gynoecium. There 
may also occur secretion cells, containing mucilage, as 
in Malva , or oil and resin, as in matricaria. Occasion- 
ally, the parenchyma is replaced either in part or 
entirely by mechanical cells, and the epidermal cells 
may be modified to hairs. 
The tissues of the ovary are, as a rule, in a very rudi- 
mentary condition ; in fact, so rudimentary that it is 
difficult to distinguish the ovaries of two flowers that 
develop into quite different fruits. In some instances 
it is said that notwithstanding the subsequent changes, 
each cell of the fruit is already indicated in the ovary. 
The ovary possesses an outer and an inner epidermis; 
the outer is provided with stomata and may also pos- 
sess hairs; the inner may also have stomata and after 
fertilization may develop secretion hairs, as in the 
orange. Between the epidermal layers occur thin- 
walled parenchyma cells which contain leucoplastids 
and chloroplastids, and in which the fibrovascular bun- 
dles are distributed, these being usually simple or else 
