BOTANY. 



once more on all sides, and note all appearances that are 

 repeated on different specimens. Observe carefully the 

 under side of the frond, along the veins and the margin. 



FIG. 471. 



FIG. 470. 



FIG. 472. 



Do you not anywhere find little brown patches resembling 

 the spots seen in Fig. 467, representing magnified pinnae, 

 or the pinnules of Fig. 469 ? In Figs. 470 and 471 you see 

 how these spots may be concealed under folds of the mar- 

 gin of fronds. 



FIG. 473 . 



FIG. 474. FIG. 474 A. 



These brown patches certainly look very little like 

 flowers. Examine them never so carefully with your mi- 

 croscope, you will not find stamens or pistils. And yet 



