94 BULLETIN OF THE 



Orders. Eastern U. S. Fiona Col. Per Cent. 



1. Composite 497 149 3° 



2. Graminere 297 no 37 



3. Cyperacere 357 108 30 



4. Leguminosse 208 57 27 



5. Rosacea 104 46 44 



6. Labiatse 121 42 35 



7. Cruciferce 76 33 43 



8. Scrophulariacese 97 32 33 



9. Filices 134 3° 22 



10. Ranunculacese 80 27 34 



11. Ericaceae 89 26 29 



12. Cupuliferse 45 26 58 



13. Orchidace?e 71 24 34 



14. Liliaceae 82 24 29 



15. Polygonacese 56 23 41 



16. Umbellifene 63 22 35 



This table exhibits better perhaps than any other the special 

 charateristics of the flora. The normal percentage being about 31, 

 we see that in all but five of these sixteen largest orders our flora 

 is in excess of that standard, while it is richest proportionally in 



the Oupuliferce, Rosacece, and Cruciferoz, and poorest in the Filices, 

 and Leguminosce. 



Comparison of Large Genera. 



In like manner we may compare the fifteen large genera given 

 in a preceding table. 



Genera. Eastern U. S. Flora Col. Per Cent. 



1. Carex 180 70 39 



2. Aster 63 21 33 



3. Panicum 36 19 53 



4. Solidago 61 18 30 



5. Quercus 38 18 47 



6. Polygonum 27 16 59 



7. Desmodium 24 14 58 



8. Salix 23 14 61 



9. Juncus 38 14 37 



10. Viola 24 13 54 



11. Cyperus. r 41 12 29 



12. Ranunculus 27 11 41 



13. Eupatorium 24 11 46 



14. Helianthus 27 10 37 



15. Asclepias 22 10 45 



