STATISTICS OF METASPERMAE. 731 
30. Distribution of Extra-Continental Species. 
cadet cae aoe ce 
dones. aeae. deae. nentual. 
Europe Ded E aOR Ae evict 89 78 46 213 67.1 
ASIAs Haseena as gaunt y 88 121 63 272 85.7 
Manchuria, Japan, China.... 6 54 40 100 31.5 
ATTIC sa cacti vonidng serorpawan 8 28 17 14 59 15.4 
Australasia...............0005 28 8 6 42 13.2 
West Indies.................. 8 1 4 13 4.1 
South America... ........... 22 15 14 51 16.0 
31. Intra-Continental Distribution of Extra-Continental 
Specific Element. 
N. . Ss. E. W. |Not N.|Not E. 
Monocotyledones ....| 86.2 47.4 93.9 76.7 13.8 6.1 
Archichlamydeae....| 83.1 50.0 93.0 70.7 16.9 7.0 
Metachlamydeae .... 76.1 57.7 92.9 80.2 23.9 Teal 
Total element ..... 85.9 50.7 93.3 75.4 14.1 6.7 
In the first table there appears in the third column of figures 
a further verification of the statements previously advanced 
regarding the relative extent of distribution of the Monocoty- 
ledones, as a group, and of the Metachlamydeae. While 34.7 
per cent. of all monocotyledonous species are of extra-conti- 
nental range, 28.3 per cent. of the Archichlamydeae, and but 
18.6 per cent. of the Metachlamydeae are of such range. The 
Archichlamydeae, from their absolute numerical preponderance, 
form the largest percentage of the extra continental element. 
The Metachlamydeae, both absolutely and according to their 
number, form the smallest percentage. A comparison with 
the table which gives the general taxonomic-group percent- 
ages of the total valley species will be instructive. While the 
Monocotyledones form 28.4 per cent. of the total species they 
