THE DEHISCENCE 



APICAL 



247 



These figures require no comment. The distribution of 

 the species of the Melastomataceae, I have not figured. 

 Cogniaux in his monograph of the family recognizes about 

 2,000 species from tropical America and 700 from Asia, 

 Africa, Oceanica and Australia. The per cent of species 

 in the fourth region is higher for this type than for any 

 other, being roughly 73, while the remaining 27 per cent 

 are found almost exclusively in the first, second and third 



regions. 



Summarizing the distribution of 



cent genera of all three types, we 



uy 



obtain the figures given 



H 



TABLE H. 



SUMMATION OF GENERA, ALL TYPES. 



Region. 



Endemic. 



Others 



Total. 





1 

 2 

 3 

 4 



5 



6 



7 



8 



9 



10 



11 



12 



13 



14 



1G 

 9 



34 



116 



5 



13 

 4 



• • • • 



• • 



• • • 



* « • 



1 



1 



• • 



7.04% 

 3.96% 



14.97% 



51.10% 



2.20% 



5.72% 



1.76% 



• • • • 



• • • • 



• • • • 



• • • • 



.44% 

 .44% 



g I • ■ 



17 



11 



23 



13 



5 



15 



5 



4 



2 

 5 



13 

 4 



1 



33 



20 



47 



129 



10 



28 



9 



4 



14.53% 



8.81% 



20.70% 



56.82% 



4.40% 



12.33% 



3.96% 



1.76% 



2 = 



= .88% 



5 = 



= 2.20% 



14 = 



= 6.16% 



5 = 



= 2.20% 



1 = 



= .44% 



The Geographical Distribution of the Apidae. 



I was early impressed by the great number of Apidae, 

 especially the larger species, occurring in South America. 



inary 



tabulation of the tenth volume of Dalia 



Hymenopterorum 



from 



monographs, and the Apidae were then tabulated from 



this 



work according to the same regions as 



those used 



