188 
The plants that bear flowers (Angiosperms), in the Systematic 
Section, are arranged with a wide grass aisle (approximately 30 
feet) between the Plant Orders, and a narrow aisle (about 10 feet 
wide) between the Plant Families. As one looks over this Section 
from any elevated point the planting plan stands out very distinctly. 
The arrangement of the Systematic Section is indicated on the 
ear 
fo, 
folded map at the end of this Guide. 
Boundaries of Orders and Families 
The boundaries of the various Orders and Families that con- 
tain shrubs are, in many cases, planted with hedges formed of 
plants that belong to the given Order or Family, or with plants of 
the given group that have special ornamental value. 
Herbaceous and Woody Plants Together 
Many botanic gardens comprise at least three sections, as 
follows: 
1. Arboretum (Latin, arbor, a tree) comprising only trees. 
2. Fruticetum (Latin, frute.x, a shrub) comprising only shrubs 
and vines. Vines are not recognized separately from 
shrubs in the manuals of botany, a vine being technically 
considered as a climbing or trailing shrub. 
3. Herbaceous Garden, comprising only herbaceous (i.e., non- 
woody) plants. 
These three divisions classify plants according to their form and 
1erbaceous 
oo 
habit of growth, and the possession of woody versus 
stems, not according to their botanical relationship. 
In the Brooklyn Botanic Garden, educational (and, to a sub- 
ordinate degree, landscape and spatial) considerations led to group- 
ing the woody and herbaceous plants together in the Systematic 
and the Local Flora Sections. This plan was suggested by Mr. 
Caparn, and is worthy of special note because it not only pro- 
es areas of lawn and secures pleasing landscape effects not 
vid 
otherwise possible in the limited space at our disposal, but also be- 
cause it gives added educational features by showing the botanical 
affinities of trees and shrubs with herbaceous plants, and the rela- 
