T R I 
The fecond fort grows naturally in Virginia ; this 
hath an herbaceous branching ftalk, which rifes from 
nine inches to a foot high ; it has four angles, and 
the leaves ftand by pairs on the branches •, they are 
fhaped like thofe of the wild Marjoram, and are a 
little hairy, fitting clofe to the branches. The flowers 
are produced at the top of the branches •, they are 
final), and of a purple colour. The four ftamina 
ftand within the tube of the flower ; thefe flowers do 
not appear till the end of fummer, fo the feeds fel- 
dom ripen here. 
They are propagated by feeds, which fhould be fown 
in pots filled with light earth in autumn ; and in win- 
ter the pots fhould be placed under a frame to fhelter 
them from fevere froft, but ihould be expofed to the 
open air at all times when the weather is mild. In the 
fpring the plants will appear, and when they are fit 
to remove, they fhould be planted on a bed of light 
earth, fhacling them from the fun till they have taken 
frdh root, then they will require no other culture but 
to keep them clean from weeds. 
TRIDAX. Lin. Gen. Plant. 872. After. Houft. 
MSS. American Starwort. 
The Characters are, 
1 The ■ flower has a common cylindrical imbricated empale- 
ment. "The flcales are acute-pointed . , and erehi . ‘The 
flowers arc compofed- of hermaphrodite florets in the diflz , 
and the rays are of female half florets. The hermaphro- 
dite florets are funnel-jhaped , of one petals and cut at the 
brim into five points ; thefe have five fhort hair-like fta- 
mina , terminated by cylindrical fummits joined together , 
and an oblong crowned germcn jupporting a briftly ftyle , 
crowned by an oblufe ftigma. The germen afterward be- 
comes an oblong fingle feed , crowned with a Jimple down. 
The female half florets are plain , of one petal , and cut 
into three fegments at the top ; thefe have an oval germen 
like the hermaphrodite florets , but no flamina , and are 
fucceeded by fingle feeds of the fame fhape. 
This genus of plants is ranged in the fecond fedtion 
of Linnaeus’s nineteenth clafs, which contains the 
plants whofe flowers are compofed of hermaphrodite 
and female florets, which are both fruitful. 
We know but one Species of this genus, viz. 
Tridax [Pro cumb ens.) Hort. Cliff. 418. After procum- 
bens, flore ochroleuco, foliis laciniatis & hirfutis. 
Houft. MSS. Trailing Starwort with a whitifh copper- 
coloured flower , and hairy jagged leaves. 
This plant was difcovered by the late Dr. Houftoun, 
growing naturally by the road fide leading to old La 
Vera Cruz, in America. The Italics of this trail up- 
on the ground and emit roots at their joints, where- 
by it fpreads and propagates ; they are herbaceous 
and hairy, and garnilhed with rough hairy leaves 
placed by pairs, about an inch and a half long, and 
three quarters of an inch broad, ending in acute 
points, and are acutely jagged on their edges. The 
flowers are produced upon long naked foot-ftalks, 
which terminate their branches. They have one com- 
mon empalement compofed of oval fcales, ending in 
acute points, which lie over each other like the fcales 
of fiftt •, within which are ranged many female half 
florets, which compofe the border or rays, and a good 
number of hermaphrodite florets which form the diflc 
or middle ; thefe are of a pale copper colour, inclining 
to white, and are each fucceeded by a Angle oblong 
feed crowned with down. 
This plant is propagated by feeds, which fhould be 
fov/n in pots and plunged into a hot-bed, and when 
1 the plants come up and are fit to remove, they fhould 
be each planted in a fmall pot filled with light earth, 
ana plunged into a hot-bed of tanners bark, obferving 
to fhade them from the fun till they have taken new 
root ; then they muft afterward be treated in the fame 
way as other tender plants from the Weft-Indies, 
placing them in the bark-ftove in autumn, where they 
Ihould conftantlv remain. 
It may alio be propagated by its trailing ftalks, which 
frequently put out roots at their joints ; if thefe are 
cut off and planted, they will make new plants. This 
plant does not produce flowers in plenty here, and 
but rarely perfects its feeds in England. 
TRIFOLIUM. Tourn. Inft. R. H. 404. tab. 228. 
Lin. Gen. Plant. 896. [of tres, three, and folium, 
Lat. a leaf..] Trefoil; in French, Trefle. 
The Characters are. 
The flower has a tubulous' permanent empalement of one 
leaf. The flower is of the buttefly kind , and is frequently 
permanent , drying in the empalement. The ftandard is 
reflexed , the wings are jloorter than the ftandard , and the 
keel is jloorter than the wings ; it has ten ftamina , nine 
are joined , and one is feparate , terminated by fingle fum- 
mits , and an almoft oval germen fupporting an awl -fhaped 
ftyle , crowned by a Jingle ftigma. The germen afterward 
becomes a fhort pod with one valve , containing a few 
roundifh feeds. 
This genus of plants is ranged in the third fedtion of 
Linnaeus’s feventeenth clafs, which contains thofe 
plants whofe flowers have ten ftamina joined in two 
bodies; and to this genus he has added the Tri- 
foliaftrum of Micheli, fome of the fpecies of Melilot 
of Tournefort, and the Lupinafter of Bux-baum. 
There are great numbers of fpecies of this genus, fe- 
veral of which grow naturally in England, and others 
in feveral parts of Europe ; but as many of them are 
plants of fmall eftimation, they are rarely cultivated 
either in the field or garden; therefore it would be 
fwelling this work too much to enumerate them here, 
fo I fhail feledt only fuch of them as are cultivated ei- 
ther for ufe or beauty. 
The Species are, 
1. Trifolium (fPratenfe) fpicis fubvillofis, cindtis ftipu- 
lis oppofitis membranaceis, corollis monopetalis. Lin. 
Sp. Plant. 1082. Trefoil with hairy fpikes , membrana- 
ceous ftipuD placed oppofite , and flowers of one petal. 
Trifolium purpureum, majus, pratenfi fimile. Rail 
Syn. 328. The Red or Dutch Clover. 
2. Trifolium f Repens) capitulis umbellaribus legumi- 
nibus tetrafpermis, eaule repente. Lin. Sp. Plant. 767. 
Trefoil with umbellatcd heads , pods having four feeds, and 
a creeping ftalk. Trifolium pratenfe album. C. B. P. 
327. White Meadow Trefoil , Honeyfuckle Grafs , or white 
Dutch Clover. 
3. Trifoliu^vi ( Agrarium ) fpicis ovalibus imbricatis, 
vexillis deflexis perfiftentibus, calycibus nudis, caule 
eredto. Flor. Suec. 617. Trefoil with oval imbricated 
fpikes of flowers , having deflex ed permanent flandards , 
naked empalement s, and an eredt ftalk . 1 Trifolium pra- 
tenfe luteum, capitulo lupuli vel agrarium. C. B. P. 
Yellow Meadow Trefoil , or Hop Clover. 
4. Trifolium ( Filiforme ) fpicis imbricatis, vexillis de- 
flexis perfiftentibus, calycibus pedicillatis, caulibus 
procumbentibus. Lin. Sp. Plant. 773. Trefoil with im- 
bricated fpikes of flowers, having deflexed permanent ftand- 
ards , empalement s ftanding upon foot-Jialks , and trailing 
ftalks. Trifolium luteum, lupulinum, minimum. Hift. 
Ox. 2. 142. The leaft yellow Hop Trefoil , called None- 
fuch , or Black Seed. , _ , 
5. Trifolium ( Ochroleucrum ) fpicis ovatis, calycibus 
foliatis, caule eredto villofo, foliolis lanceolatis. Tre- 
foil with oval fpikes of flowers, having leafy empalement s, 
an eredt hairy ftalk, and fp ear-Jh aped leaves. Trifolium 
pratenfe hirfutum majus, flore albo fulpfiurea, feu 
ochroleucrum. Raii Cat. Cant: Greater , hairy. Meadow 
Trefoil, with a whitifh fulphur or copper -coloured flower , 
commonly called Trefoil. 
6 . Trifolium ( Rubens ) fpicis villofis longis corollis mo- 
nopetalis, caule eredto, foliis ferrulatis. Hort. Cliff. 
375. Trefoil with oblong, blunt, hairy fpikes of flowers ft 
of one petal, erehi ftalks , and flawed leaves. Trifolium 
fpica oblonga rubra. C. B. P. 328. Trefoil with an ob- 
long red fpike. 
7. Trifolium ( Squarrofum ) fpicis fubpilofis, calycum 
infimo dente longiftimo reflexo, caule herbaceo. Lin. 
Sp. Plant. 1082. Trefoil with hairy fpikes of flowers, 
whofe empalement s have long reflex ed indentures, and an 
herbaceous ftalk. Trifolium Hifpanicum anguftifolium, 
fpica dilute rubente. C. B. P. 328. Narrow-leaved 
Spanifh Trefoil , with pale red flowers. 
8. Trifolium 
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