200 



APPENDIX. 



Natural Orders with 



total numbers of Genera 



and Species in Mexico 



and Central America. 



Distribution of the Genera and Species in 

 Mexico and Central America. 



Distribution of the Genera and Species extending 

 beyond Mexico and Central America. 





Mexico. 



a 



3 



§ 



a s 



e8 



13 



t-i 



03 



o 

 O 



1 



S3 



In the New World. 



In the Old World 



and 



Pacific Islands. 



u 

 o 



o 



CO 



d 

 '8 

 u 



CD 



a 



163. Filices 



Gen. 48 (endemic 1). 

 Sp. 545 (end. 159). 



~ f total 

 Gen -|end. 



« J total 

 S P- {end. 



27141 1 

 1 



1011359] 20 

 120 



42 

 254 



8 

 8 



30 

 135 



18 



51 



27 



25 

 105 



Gen. 47 (Am. only, 3). 



TSM. Am. 17 : N.E. Am. 



22 ;S. Am. 44; W.I. 44. 

 Sp. 386 (Am. only, 293). 



N.W.Am.47;N.E.Am. 



44; S.Am. 337; W.I. 



260. 



42 gen. widely; 

 1 Polynesia^; 1 

 Asia ; 1 S. Afr. 



74 sp. widely ; 10 

 Africa; lAsia; 

 4 Polynesia ; 3 

 Galapagos ; 1 

 Tris. da Cunha. 



164. Equisetaceae 



Gen. 1 (endemic 0). 

 Sp. 7 (endemic 2). 



„ f total 

 Gen 'tend. 



c f total 

 S P- {end. 



1| 1[ .. 



2| 5| .. 

 2 



1] .. 

 lj .. 





1 

 1 



1 

 1 



Gen. 1 (Am. only, 0). N.W. 



Am. 1; N.E. Am. 1; 



S. Am. 1 ; W. I. 1. 

 Sp. 5 (Am. only, 3). N.W. 



Am. 2 ; N.E. Am. 1 ; S. 



Am. 4; W.I. 1. 



1 gen. widely. 



1 sp. widely ; 1 

 Asia. 



165. Lycopodiacese .. 

 Gen. 2 (endemic 0). 

 Sp. 13 (endemic 0). 



n f total 

 Gen -|end. 

 f total 

 S P- {end. 



1| 2|. . 

 Ullj.. 



1| .. 



8| .. 



1 



1 





1 



4 



Gen. 2 (Am. only, 0). N.E. 



Am.2;S.Am.2;W.I.l. 

 Sp. 13 (Am. only, 4). N.E. 



Am. 2 ; S. Am. 10 ; W. I. 



10. 



2 gen. widely. 



7 sp. widely; 1 

 Asia; 1 Gala- 

 pagos. 



166. Selaginellacese . . 

 Gen. 1 (endemic 0). 

 Sp. 37 (endemic 19). 



~ f total 

 Gen -tend. 



a f total 

 S P' jend. 



1| 1|.. 



51181 2 

 12 



11 .. 



9| .. 



1 

 4 



1 



2 

 5 



| 1 

 1 9 



Gen. 1 (Am. only, 0). N.W. 



Am. 1 ; N.E. Am. 1 ; S. 



Am. 1 ; W. I. 1. 

 Sp. 18 (Am. only, 17). 



N.W. Am. 2 : N.E. Am. 



2 ; S. Am. 15 ; W. I. 4. 



1 gen. widely. 

 1 sp. widely. 



167. Rhizocarpese 



Gen. 3 (endemic 0). 

 Sp. 5 (endemic 2). 



r. ( total 

 Gen 'lend. 



a f total 

 S P- {end. 



11 31.. 



1| 4|.. 

 2 



,..,.. 



1 



1 





1 1 

 1 1 



Gen. 3 (Am. only, 0). N.W. 



Am. 1 ; N.E. Am. 1 ; S. 



Am. 3 ; W. I. 3. 

 Sp. 3 (Am. only, 2). N.W. 



Am. 1 ; N.E. Am. 1 ; S. 



Am. 3 : W. I. 3. 



3 gen. widely. 

 1 sp. Polynesia. 



The foregoing Table is an almost inexhaustible epitome of facts, for the greater part, 

 however, in an undigested state, requiring further summarization and elucidation to 

 bring them easily within the grasp of the mind. Perhaps the best way to effect this 

 is by a descending process, from orders to species. Of course it is not possible to 

 separate one grade entirely from another ; but the principal facts and factors may be 

 so classified as to give prominence to ordinal, generic, and specific distribution in a 

 successive series of analyses. We will first give the proportions of the primary divi- 

 sions of the vascular plants*, which number 12,233 species. 



* The sums of the secondary divisions, Polypetalse, &c, are given in succeeding TahVs. 



