246 



PARKS AND PLEASUB-E-GROUNDS. 



Ord. 57. AquifoHacese. 4 ; 20 ; 30. 

 58. Apocynacese. 1 ; 1 ; 6. 

 aen. 6 ; sp. 25 ; v. 38. 

 Alliance 26. Solanales. 

 Ord. 59. Oleacese. 



Olege. 4 ; 14 ; 9. 

 Fraxinese. 5; 30; 32. 



60. Solanacese. 5 ; 10 ; 0. 



61. Asclepiadacese. 1 ; 1 ; 0. 

 G-en. 15 ; sp. 55 ; v. 41. 



Alliance 27. Echiales. 

 Ord. 62. Jasminacese. 1 ; 7 ; 3. 



63, Lamiacese. 3 ; 3 ; 0. 



64, Yerbenacese, 1 ; 3 ; 1. 



65, Myoporacese. 1 ; 1 ; 0. 

 G-en. 6 ; sp. 14 ; v. 4. 



Alliance 28. Bignoniales. 



Ord. 66. Bignoniacese. 3 ; 4 ; 0. 



67. Scrophulariacese. 3; 3; 0. 



G-en. 3 ; sp. 7. 



Alliance 29. Campanales. 



Ord. 68. Asteracese. 2 ; 3 ; 0. 



G-en. 2 ; sp. 3. 

 Alliance 30. Myetales. 

 Ord. 69. Alangiacese. 1 ; 4 ; 0. 



Ord. 70. Myrtacese. 2 ; 2 ; 7. 

 Gen. 3 ; sp. 6 ; V. 7. 

 Alliance 31. G-eossales. 

 Ord. 71. Grossulariacese. 1 ; 45 ; 

 37. 



72. Escalloniacese. 2"; 5 ; 8. 



73. Pliiladelpliacese. 3 ; 15 ; 



16. 

 Gen. 6 ; sp. 65 ; v. 41. 



Alliance 32. Cinchonales. 



Ord, 74. Vacciniacese. 2 ; 35 ; 10. 



75. CaprifoHacese. 8; 60; 27. 



LonicerecB. 



Sambucece. 



Gen. 10 ; sp. 95 ; v. 37. 



Alliance 33. Umbellales. 



Ord. 76. Apiacese. 1 ; 2 ; 0. 



77. Araliacese. 2 ; 8 ; 8. 



78. Comaceae. 3 ; 3 ; 2. 



79. Hamamelidacese. 2 ; 2 ; 4. 

 G-en. 8 ; sp. 15 ; v. 14. 



Alliance 34. Asaeales. 

 Ord. 80. Santalacese. 1 ; 1 ; 0. 



81. Loranthacese. 1 ; 1 ; 0. 



82, Aristolocliiacese, 1; 2; 0. 



Gen, 3 ; sp. 4. 



A careful inspection of the preceding Synopsis will 

 suggest most of the scientific principles on which the 

 arrangement of an arboretum must proceed. It wiU 

 be understood that the individual species of i)lants unite 

 to form genera, the lowest but most perfect combinations 

 of vegetables that exist in nature. It will also be per- 

 ceived that cognate genera coalesce into orders, which 

 are the next important aggregations ; and these orders, 



