178 PLANT ANATOMY. 
Ficus); the outermost row, however, is also here, for the most 
part, somewhat differently formed. 
In most fruits and seeds only the outermost row of cells be- 
SOOO Sago: 
EEC COO OSB OPS: 
COCCL OCS, ogee oo = 
—— DO OCU OODO GRE SECU DOC 
Fia. 85.—Transverse section through Macis; c, epidermis; 0, oil-cells; v, fibro-vascular 
bundles. 
longs to the epidermis, and in this case, to speak offa multiple 
epidermis, is incorrect. 
Fie. 86.—Rind of the fruit of Colocynth (in the commercial fruit usually removed by 
paring); a, epidermis; b, parenchyma; ¢, sclerenchymatous layer, which mostly forms 
the outer surface of the pared fruit, 
In the epidermis consisting ofa single layer, the cell-walls are 
mostly firmer than in the tissues lying beneath it, and more 
