480 . THE VEGETABLE WORLD. 
Smail trees; leaves alternate or clustered ; flowers growing out of 
the old stems or branches ; calyx free; corolla monopetalous, some- centiaces 
what two-lipped ; stamens four, growing on th lla; fruit succu- CCLXL Crescent 
lent, hard-shelled. 
Trees, shrubs, : i rs ’ 
site, without stipules; flowers terminal, somewhat panicled; calyx 4 . 
divided or entire: spathaceous corolla; monopetalous stamens, five Se 
unequal; winged seeds; no albumen 
Herbaceous or shrubby plants, with opposite leaves, rarely in fours, 
without stipules; flowers opposite in spikes, sometimes terminal ; CCLXUTI. Acanthaces. 
calyx four or five-parted ; corolla monopetalous; stamens two, both 
ating anthers ; wingless exalbuminous seed 
Herbs, shrubs, or undershrubs, with opposite, whorled, or alternate 
feaves; flowers axillary or racemose; calyx inferior; persistent 
sepals, sometimes united; corolla monopetalous; stamens in single 
posite the sepals ; seeds albuminous 
CCLXIV. Serophulariacer. 
and herbs, often twining or climbing; leaves oppo- } 
side teats or sag ong saipciohaiac. Geel nt: ots CCLXV, Lentibulariacess. 
id ee stamens two, within the corolla; minute } . 
_ The Peparracez occur in small numbers in the tropics, chiefly 
in Africa. Sesasum, yielding an oil which is substituted for olive 
oil, and several other species have useful medicinal properties. 
The GxsNERIAcEx are small bushes, frequently mere herbs, 
distinguished by their winged seeds, finely oblique veins, sometimes 
extending into long hairs, or even flattened wings, and the seed 
a large leafy cotyledon. Those which have forced their way into 
our gardens are natives of tropical America. Other genera are 
found in all patts of the world, from the cooler parts of Asia, 
the Cape of Good Hope, the warm valleys of the Himalayas, 
and Australia. They are generally trees of great beauty, yield- 
ing sweetish fruits. 
The Crescentrace®, Bianonace®, and ACANTHACE® are’respec- 
tively natives of the tropics of both hemispheres. The Calabash- 
tree ( Crescentia Cujete) bears a great gourd-like fruit, filled with 
a subacid pulp, much eaten by the negroes. The chief station of 
the Bignonias, whose trumpet-shaped flowers are the glory on 
the places they inhabit, extends from Pennsylvania to the southern 
provinces of Chili. The Acanthacem, distinguished by their large ay 
leafy bracts, which almost conceal their flowers, are almost 
tropical, although the typical genera Acanthus is found as far 
north as Greece, where it became the model for a graceful archi-_ 
tectural ornament. (ae 
_ The ScrorHuLartaces include a large number of well-known — 
favourites, of apparently anomalous structure and forms, which ; 
at first glance would seem to belong to other orders. They sre. 
