344 D. Prain — The "Vegetation of the Coco Group. [No. 4, 



Table I. Systematic synopsis of Coco Island orders, genera and species. 



fPHANEROGAMiE ... 



^Dicotyledones ... 

 f AngiospermsB 

 I fPolypetalse 



iThalamiflorse 

 Disciflorse 

 Calyciflorse 

 Gamopetalse 

 I (^IncompletEe 

 l^Gymnospermse 

 Monocotijledones 



^CrYPTOGAMjE 

 fVasculares 



iFilices 

 Characese 

 Mnsci 

 Hepaticse 

 {_Cellulares 

 ^ Lichenes 

 j Fungi 



Total .. 



Nat. Ordees 95 



.223 



178' 



177 



80 



19 



29 

 38 



45 



45 



12 



,33 



Genera 268 



297 



238 



61 



Species 358 



Of the 73 natural orders of Phanerogams 24 are represented hy 

 single species and 14 more by two species eacb. The most extensively 

 represented natural order is Leguminosai, with 84 species ; followed after 

 a long interval by Euphorhiacece and GraminecB, eacb 15 sp. ; Convolvu- 

 lacece, 14 sp. ; ItubiacecB, 13 sp., ; Urticacece, 11 sp. ; Cyperacece, 10 sp. 

 Filices, amongst Cryptogams, are also represented by 10 species. None 

 of the otber orders have more tban 8 species. 



As to genera : 29 of these natural orders of Phanergams are re- 

 presented by one genus ; 13 by 2 genera : 11 by 3 genera ; 6 by 4 genera ; 



6 by 5 genera ; 4 by 6 genera ; one natural order each where there are 



7 genera {Apocyneoi) ; 8 genera (^Graminece) ; 11 genera (Bubiaceoi) ; 12 

 genera (JEuphorhiacece) ; and 22 genera (Leguminosce) : Leguminosce thus 

 leads both as regards genera and species. The subjoined table exhibits 

 the relationship of the orders according to the wealth of their repre- 

 sentation. 



Table II. Natural orders of Coco Island Phanerogams arranged according 

 to their richness in species. 



Number 



of 

 species. 



Number 



of 

 orders. 



Names of orders. 



34 

 15 



1 

 2 



Leguminosce. 

 Huphorbiacece, Graminece. 



