296 MONOPETALEE.—HYPOCOROLLEZ. 
twining, have erect ovules, corolla imbricate in zstivation, of 
5 or more divisions, and have little albumen in the seed. The 
Oleacee have pendulous ovules, corolla valvate in estivation, 
and of 4 divisions, and a large fleshy albumen. 
Economicat Prorerties.—Olive Oil is the expressed oil 
of the pericarp of Olea europea, and is the only instance 
(except Melia, and the orange tribe,) of a fixed oil being pro- 
cured from the pericarp ; fixed oils are almost always con- 
tained in the seed. In some parts of Italy the manna which 
exudes from the Ornus europea (Fraxinus Ornus) is used 
instead of sugar. The Chinese give Tea an aromatic fla- 
vour by the leaves of the Olea fragrans. Oil of Jessamine 
is the produce of Jasminum officinale and J. grandiflorum. 
MepicinaL Propertries.—Olive oil is demulcent and 
laxative ; it is mostly employed asa vehicle for more active 
medicines, or for ointments. The leaves are bitter and as- 
tringent, and have been recommended as a substitute for 
bark by M. Didot. The young capsules of Syringa vulgaris 
are said to be tonic and febrifuge.—Richard. The leaves 
of Common Ash (Frazxinus excelsior) have similar properties. 
Manna is an agreeable laxative, but principally used along 
with other medicines: it is obtained from the Frazinus ro- 
tundifolia as well as from F. Ornus (Ornus r. and Or- 
nus europea.) The flowers of White Jessamine (Jasminum 
officinale) were formerly used as antispasmodic; they have 
_ an agreeable aromatic perfume. 
Ornus s europea (Fraxinus — 
