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THE STUDY OF THE SCIENCE OF BOTANY. 
Classis IX.— Enneandria. 
Enneandria , from enneci, nine, and 
atier, a man; flowers furnished with nine 
stamens. 
One of the smallest of the Linnaean 
classes, containing, however, three im¬ 
portant genera: the laurel ( Lauries) } 
for the valuable spices it produces, and 
for the beautiful foliage of its allied 
species; the Casliew-nut ( Anacardium occidentale), known at the tables 
of the great or luxurious; and the rhubarb {Rheum), one of the most 
valuable of medicines. Orders three, viz. 
Monogynia ; Cassythafiliformis. 
Trigynia ; Rheum undulatum. 
Hexagynia, from hex, six, and gyne, a woman; flowers furnished 
with six styles ; Butomus umhellatus . 
Classis X. —Decandria. 
Decandria, from deka, ten, 
and aner, a man ; signifying 
that this class bears flowers 
that are bisexual, and furnished 
with ten husbands,' stamens, 
or male organs. 
This class is composed of por¬ 
tions of a considerable number of natural orders, of which the most im¬ 
portant is Leguminosce: these are of two kinds—those which are papilio¬ 
naceous, and those which have a regular expanded flower. The former 
are remarkable, for their kind, for bearing distinct stamens, combined 
with a papilionaceous corolla. The greater part are natives of New 
Holland or the Cape of Good Hope, a very few of the northern hemis¬ 
phere, and all of them ornamental plants. Of those with regular 
flowers, the most beautiful genus is the Bauhinia , which, in the lati¬ 
tudes of the tropics, constitutes the most formidable obstacle to the 
passage of human beings through the woods, which are interlaced in 
every direction by the climbing or leaning stems of these and other 
plants, commonly called Licvnes. The most extensive genus is Cassia , 
the species of which is little esteemed as objects of ornament, but of 
material importance in medicine, the famous senna of the shops being 
