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The BRITISH HERBAL. 
I, Broad-icavcd Oldtnlandia. 
Oldcnlandiit foUis latiorihu. 
The root i- compofed of a few fmall fibres. 
The ftalks are numerous, weak, flender, and 
in o-reat pai t procumbent ; they take root at the 
joints as they lie, and by this means fpread the 
plant abundantly. 
The leaves are placed in pairs, ana have fhort 
footftalks : they are oblong, broad, and of a faint 
gi een : they are largeft in the middle, pointed at 
the ends, and not at all notched at the edges. 
The flowers grow in the bofoms of the leaves : 
they are placed on fh rt footftalks, one Cower on 
each i and they are fmall snd white. 
The feed-vefTel is large, and contains a number 
of fmall, brown feeds. 
It is frequent in North America in damp places. 
It flowers in June. 
Plukenet calls it Aljine aqualica major repevs 
Virginiana foliis acuminatis. Others, Oldeidaiidia 
unicorn, from the flowers (landing fingly on the 
footftalks in this fpecies ; they fupporting more 
in the others. 
2. Narrow-leaved Oldenlandia. 
Ouienlandia angufii]olia. 
The root is fmall, oblong, and furniflicrd v. ith 
many fibres. 
The ftalks are numerous, [lender, round, firm, 
upright, and branched : they are of a brownifti 
colour, and brittle. 
The leaves are placed in pairs, and have tufts 
of young ones, or the rudiments of branches, 
in their bofoms all the way uptheftalk: they 
are long, narrow, and fharp-pointed ; and are 
ot a duflty green. 
The flowers ftand at the tops of the ftalks, and 
of fhoots rifing from the bofoms of the upper 
leaves, in clufters like little umbelisv and they are 
fmall. 
The feed-veftel is large, and the feeds are nu- 
merous and little, 
Plukenet calls it LyfimachU affims faturi^e folio 
madera fpatenfis caffulis in fumitate fere imbellatis. 
Others, Oldenla?idia umhellata. 
Its virtues are not known: 
GENUS V. 
A M M A N I A. 
THF. Rower confifts of four petals regularly difpofed, and inferted into the cup; the feed- vefTcr 
is round, and contains four cells : the cup is hollow, ftriated, and quadrangular : it is divided 
into eight fcgments at the edge, and four of thefe are fhorter than the others, and are turned back. 
Linnxus places this among the tctrandria momgynia ; the threads in the centre of the flower beino- 
four, and the ftyle froni the rudiment of the fruit Angle. 
Narrow-leaved Ammania. 
Ammania foliis angujlis. 
The root is long, flender, divided, and fur- 
niftied with numerous fibres. 
The ftalk is round, upright, firm, and ex-, 
tremely branched : it is of a redifti colour, and 
tough i and its branches are e^itremely long and 
flender. 
The leaves are placed in pairs, and they are 
oblong, .very narrow, fliarp-pointed, and with- 
out footftalks. 
The flowers are placed in cluftrcrs in the bofoms 
of the leaves ; and they are fmall, and of a 
bright yellow ; the plant when in flower makes 
a beautiful appearance ; for it is covered at the 
joints from the root to the very top. 
The feed-vefl"cls are round and fmall ; and the 
feeds are minute and numerous. 
It is a native of the Eafl: Indies, and flowers 
in June. 
Plukenet calls it Anonymos linari^ folio orien- 
talis Gallii lutei flore herba capfidaris verlicillata. 
Its virtues are unknown. 
GENUS VI. 
WATER CALTROP. 
f R .-i P J. 
THE flower confifts of four petals regularly difpofed : the fccd-veflel is of an oblong oval form, 
very liard, and contains only a fingle cell ; and it is armed with four lharp thorns ; the cup is 
made of a fingle piece divided into four narrow fegments : it remains after the Bower is fallen ; and 
the fegments hardening, become the thorns of the feed-vefiel. 
Linnaus places this among the tctrandria nwnogyn'm ; the threads in the centre of the flower bcino- 
four, and the fl:yle from the rudiment of the fruit fingle. 
This author has taken away its common name tribulus aquatica, and calls it trapa : this is very 
proper, becaufc another plant of a very diflS:rent genus is called tribulus terreftris. We have retained 
the name trapa s keeping with it the Englifh received name water caltrop. 
Of this genus there is but one known fpecies. 
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