28 STATISTICS. 



The diphthong rt(V is given its customary English sound. The pupil should 

 bear in mind that the final e in the names of plants should always be 

 pronounced (taking the sound of short i), as in officinale, vnhja-re, 

 commu-ne. 



STATISTICS OF THE REVISION. 



Number of families 141 



Number of genera 1029 



Number of indigenous species 1784 



Number of extra-limital species (or reputed species) . . . 1410 

 Total species 3203 



Making a total gain over the first edition of 82 genera and 553 species. 



