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RUTACEAE 
Several R. are or have been used in medicine, chiefly on account 
of the oils they contain, e.g. Ruta, Galipea, Toddalia, See. Citrus 
yields important fruits, and Chloroxylon a dye-stuff. 
Classification and chief genera (after Engler) : The groups of R. 
differ considerably among themselves, and several of them were formerly 
regarded as independent orders. The relationships to allied orders are 
thus given by Engler : 
Zygophyllaceae 
Cneoraceae 
Rutaceae 
Meliaceae 
Burseraceae 
Simarubaceae 
The characters of only a few of the sub-orders are given here. 
A. Cpls. usually 4 — 5, rarely 3 — 1 or more, often only united 
by style, =*= divided when ripe ; loculicidal dehiscence usually with 
separation of endocarp ; rarely 4 — 1 fleshy drupes. 
RUTOIDEAE . 
I. Zanthoxyleae : Zanthoxylum, Choisya. 
II. Ruteae : Ruta, Dictamnus. 
III. Boronieae: Boronia, Eriostemon, Correa. 
IV. Diosmeae : Calodendron, Adenandra, Diosma. 
V. Cusparieae: Almeidea, Galipea, Cusparia. 
DICTYOL OMOIDEAE . 
VI. Dictyolomeae : Dictyoloma. 
B. FLINDERSI OIDE A E. 
VII. Flindersieae : Flindersia, Chloroxylon. 
C. SPA THELIOIDEAE. 
VIII. Spathelieae : Spathelia. 
D. TO DBA LIO IDEA E. 
IX. Toddalieae : Ptelea, Toddalia, Skimmia. 
E. Berry, often with periderm, and with pulp derived from sappy 
emergences of cpl. wall. Seeds exalbuminous, often with 2 or more 
embryos. Lysigenous oil glands. 
A UR A NTIOIDEA E. 
X. Aurantieae: Glycosmis, Limonia, Atalantia, Feronia, 
Aegle, Citrus. 
[Benth.- Hooker place the order in Geraniales, but add sub-order 
VII. to Meliaceae. Warming places it in Terebinthinae.] 
Rynchospora Vahl. Cyperaceae (11). 150 sp. N. temp. ; 2 in Brit. 
Sabal Adans. Palmae (1. 2). 8 sp. Am. 
Sabbatia Adans. Gentianaceae (1. 2). 12 sp. N. Am. 
Sabia Colebr. Sabiaceae. 17 sp. S. and E. As. 
Sabiaceae. Dicotyledons (Archichl. Sapindales). 4 gen. with 65 sp. 
trop. and E. As. Trees, shrubs or lianes with alt. exstip. impari- 
pinnate or simple leaves. Infl. a panicle or cymose panicle, with 
bracts and bracteoles. Firs, usually $ . K (3 — 5), imbricate or free ; 
