234 PARKS AND PLEASURE-GROUNDS. 



from unity; but to prevent confusion we have quoted 

 the numeration of ' The Vegetable Kingdom' through- 

 out, giving the numbers of its classes and alliances 

 within parentheses, thus : for a class (V. K. IV.), and for 

 an alliance (V. K. 16.) We beg the reader's attention 

 to the following 



List of Abbreviations. 



D. Deciduous ; denoting plants shedding their leaves in autumn. 



E. Evergreen. 



SE. Sub-evergreen ; applied to plants retaining part of their foUage 



through winter. 

 T. Tree. 

 S. Shrub, 

 CI. Climber — a plant climbing or twining and requiring or finding 



support. 

 Tr. Trailing — apphed to plants creeping or lying on the groimd, 

 h. Hardy ; sh. sub-hardy, i. e. hardy in some places but not in 



others. 

 Sp. Species ; v. botanical variety. 



Synopsis of the Natural Orders and G-enera of 



Plants which mat be employed in forming an 



Arboretum. 



Class ENDOGENS. (V.K. IV.) 



Alliance 1. LILIALES. (V. K. 16.) 



Ord. 1. LiLiACE^. Lilyworts. (Luidl. 62 ; Loud. 80.) 



Yucca. Adam's Needle. E. S. sh. 4-10 ft. Sp. 10 ; v. 2. 

 Euscus. Butcher's Broom. E. S. 2-3 ft. Sp. 4 ; v. 3. 

 Borya. D. S. 5-8 ft. Sp. 3. 



Class DICTTOGENS. (V. K. V.) 



Alliance 2. DICTYOOENS. (Lindl.) 



Ord. 2. Smilaceje. Sarsaparillas. (Lindl. 69 ; Loud. 79.) 

 Smilax. E. D. CI. Sp. 16. 



