MR 



ON THE GEOGRAPHICAL DISTRIBUTION OF FERNS. 



8"7 



10. Tropical America, including the whole of Mexico and Brazil. Sjxvirs peculiar to 

 the West-Indian Islands, marked I, should be under 9. 



Table I. is intended to show roughly the area of the districts ilms obtained, to which is 

 added the temperature of a few selected stations at the sect leveL 



Table I 



District 



1. Arctic 



2. Temperate Europe and Africa 



3. Temperate Asia 



\. Temperate North America 



5. Temperate South Africa 



Approxi- 

 mate ar in 

 millions of 



sq. miles. 



6. Temperate Australia and N. Zealand 



7. Temperate South America 



8. Tropical Africa 



9. Tropical x\sia and Polynesia 



10. Tropical America 



3 



f) 



11 



5i 



91 



1 



10 



\i 



a 



6 



Torneo, Lapland 

 Siberia, U0 o -130 o East long. 

 Mast coast of Greenland. . . . 

 England 



Central Kurope 

 Moscow 



. . . - - 



Barbarv States 







West Siberia . 



Pekin 



Palestine 



Montreal 



Baltimore 



Port Vancouver 

 Natal 



Cape Town 



Cape Horn 

 Nubia 



Gold Coa>t 



Ceylon 



Mocha 



Sydney 



Van Diemen'a Land 



New Zealand, north island 



uth island . . 



5 



33-41 



1-32 

 II 





50 



18 



32 



31 



77 

 75 



70 



59 



59 

 55 



Valparaiso ' 



Buenos Ay res 



42 



7U 

 77 



77 



Jamaica y 



Amazon Valley 





3 7 



6 



<i. 



> 



59 



77 



SO 





73 

 65 

 70 







42 



i 

 11 



54 



5. 



■ \ 



77 



I 



77 



27 



10 



51 



2; i 



• I 



51 



6 



1 



41 



1 



7 



Hi 



20 



17 



14 

 14 

 14 



17 



8 



22 



2 



4 



13 



4 



2 





Table II. is a complete enumeration of species, with the districts in which .1,, occur 



indicated 



2 r2 





