T O X 
flowers come out in Angle fpik.es from the wings of 
the ftaik ; they are white, and arelucceeded by I'm all 
lucculent berries like the former fort. 
Thefe plants are propagated, by feeds, which muft be 
procured from the countries where they grow natu- 
rally ; thefe fhould be fown in l'mall pots filled with 
HgJit earth, and plunged into a hot-bed of tanners 
bark. Thefe feeds fometimes grow the firft year, but 
they often remain in the ground a whole year ; there- 
fore, if the plants fhould not come up the fame fea- 
fon, the pots fhould be plunged in autumn into the 
tan- bed in the ftove, where they fhould remain all the 
winter, and in the fpring they fhould be removed out, 
and plunged into a frefh tan-bed, which will foon 
bring up the plants if the feeds were good. When 
thefe are fit to remove, they fhould be each planted 
in a ftnall pot, and plunged into a tan-bed, where 
they muft be fhaded from the fun till they have taken 
. new root, and then they muft be treated in the fame 
way as other tender plants from the fame countries, 
which require to be kept conftantly in the bark-ftove. 
TOXICODENDRON. Tourn. Inft. R. H. 6 1 o. 
tab. 38 r. Rhus. Lin. Gen. Plant. 331. [-rcgijcov, poi- 
fon, and fafyov, a tree.] Poifon-tree, vulgo. 
The Characters are. 
The male flowers are upon different plants from the fe- 
male ; they have a fnall empalement cut into five points 
at the brim , and five fimall roundifh petals zvhich fpread 
open-, they have five fhort Jlamina , terminated by round- 
ijh fummits. The female flowers have empalements and 
petals like the male ; they have no Jlamina , but in the cen- 
ter is fituated a roundifh germen , fupporting three fmall 
fiyles , crowned with globular ftigmas. The germen after- 
ward turns to a berry with one or two cells , inclofing one 
feed in each. 
This genus of plants is ranged in the third feiftion 
of Linnaeus's fifth clafs, which includes the plants 
whole flowers have five ftamina and three ftyles, and 
has joined them to his genus of Rhus ; but this genus 
fhould be ranged in the fifth febtion of his twenty- 
fecond clafs, which contains thofe plants whofe flowers 
are male and female on different plants, and the male 
flowers have five ftamina. 
The Species are, / 
1. Toxicodendron ( Vulgar e ) foliis ternatis, foliolis ob- 
cordatis, glabris, integerrimis, caule radicante. Poi- 
fon-tree with roundifh , heart-Jhaped , fmooth , entire , trifo- 
liate leaves, and a ftaik putting out roots. Toxicoden- 
dron triphyllum, folio finuato pubefeente. Tourn. 
Inft. 61 1. Smooth three-leaved Poifon-tree, or Poifon Oak. 
2. Toxicodendron ( Pubefcens ) foliis ternatis, foliolis 
ovatis incifo-angulatis pubefeentibus. Poifon-tree with 
trifoliate leaves whofe lobes are oval , angularly cut , and 
covered with floor t f oft hairs. Toxicodendron triphyl- 
lum, glabrum. Tourn. Inft. 61 1. The three-leaved 
Poifon-tree , with a foft , hairy, Jinuated leaf. 
3. Toxicodendron ( Glabrum ) foliis ternatis, foliolis 
ovato-lanceolatis glabris caule ere&o fruticofo. Poifon- 
tree with trifoliate leaves whofe lobes are oval , fpear- 
foaped, and fmooth , and an eredl fhrubby ftaik. Toxi- 
codendron rectum, foliis minioribus glabris. Hort. 
Elth. 389. Upright Poifon-tree with /matter fmooth 
leaves. 
4. Toxicodendron {Pinna t is) foliis pinnatis, folio- 
lis ovato-lanceolatis integerrimis. Poifon-tree with 
winged leaves zvhofe lobes are oval, fpcar-Jhaped , and en- 
tire. Toxicodendron foliis alatis, frubtu rhomboide. 
Hort. Elth. .392. Poifon-tree with winged leaves and a 
rbomboidal fruit, catted Poifon Afto. And the Rhus fo- 
lds pinnatis integerrimis, petiolo integro aequali. Lin. 
Mat. Med. 151. Alfo the Amyris foliis impari pinna- 
tis of the fame author. Sp. Plant. 496. 
5. Toxicodendron ( Crenatum ) foliis ternatis, foliolis 
ovatis crenato-dentatis glabris. Poifon-tree with trifo- 
liate leaves, whofe lobes are oval, fmooth , and bluntly 
indented. 
6. Toxicodendron ( Volubilis ) foliis ternatis, foliolis 
ovatis incifo-finuatis glabris, caule volubili radicante. 
Poifon-tree with trifoliate leaves whofe lobes are oval , 
fmooth , and cut into finufes, and a twining rooting ftaik. 
Toxicodendron amplexicaule, foliis rninoribus glabris. 
Hort. Elth. 399. Poifon-tree with a twining ftdlk, 
and [matter fmooth leaves. 
7. JTqxicodendron ( Serratum ) folds fepius ternatis, 
foliolis oblongo-ovatis rugofis ferratis, caule radi- 
cante. Poifon-tree with leaves which, are generally trifo- 
liate, oblong, oval , rough, _ [awed lobes, and a rooting ftaik . 
8. Toxicodendron [Arbor eo) foliis ternatis, foliolis lan- 
ceolatis fuperne intequaliter ferratis, fubtus tomento- 
fls, caule arborefeente. Poifon-tree with trifoliate leaves , 
fpearfhaped lobes unequally Jawed toward their points * 
downy on their under fide, and a tree-like ftaik. Bacci- 
fera Indica trifoliata, frudu rotundo monopyreno, pe- 
dunculo longo. Sloan. Cat. 170. Indian , trifoliate , 
berry- bearing-tree , with a roundift: fruit having one feed , 
and a long foot -ftaik. 
9. Toxicodendron (. Arbor efeens ) foliis ternatis, foliolis 
ovato-lanceolatis acuminatis glabris, caule fruticofo 
ramofo. Poifon-tree with trifoliate leaves , having oval , 
fpear-fhaped , acute-pointed, fmooth lobes, and a fhrubby 
branching ftaik. Toxicodendron arborefcens.pyri fo- 
liis glabris, floribus racemofis. Houft. MSS. Tree- 
like Poifon-tree , with fmooth Pear leaves and branching 
flowers, 
10. Toxicodendron [Alt iff mum) foliis pinnatis fefiili- 
bus, lobis acuminatis. The talleft Poifon-tree with winged 
leaves , whofe lobes are pointed , and fit clofe to the foot- 
ftalks. Fafi no Ki. Arbor Yernicifera fpuria, fyl- 
veftris anguftifolia. Kemp. Amcen. 794. The fpurious 
Vernice-tree zvith narrow leaves. 
The firft fort grows naturally in many parts of North 
America; this has alow fhrubby ftaik, which feldom 
riles more than three feet high, fending out fhoots 
near the bottom, which trail upon the ground, put- 
ting out roots from their joints, whereby it multiplies 
and fpreads greatly ; fo that when it is not confined or 
trained up to a fupport, the ftalks feldom rife upward. 
If the ftalks happen to be dole to a wall, they emit 
roots which fallen to the joints in the wall, and fup- 
port themfelves when they are fevered from the root ; 
and the ftalks of fuch plants will become more lig- 
neous, and rife much higher, than thole which grow 
in the ground. The foot-ftalks of the leaves are near 
a foot long ; the leaves are compofed of three oval 
heart-fhaped lobes, which are fmooth and entire, each 
lobe Handing upon fhort foot-ftalks ; the lobes are 
five inches long, and three inches and a half broad ; 
the two fide lobes are oblique to the foot-ftalk, but 
the middle one is equal ; they have many tranlverfe 
veins running from the midrib to the borders. The 
flowers come out from the fide of the ftaik in loofe 
panicles •, they are of an herbaceous colour and fmall, 
fo make little appearance. Some plants have only 
male flowers, which have five ftamina in each ; thefe 
decay without producing fruit, but upon the other 
plants are only female flowers, which have a germen 
and three very fhort ftyles ; thefe are lucceeded by 
roundifh, channelled, fmooth berries of a gray colour, 
which inclofe one or two feeds, but thefe feeds do 
not grow unlefs fome male plants are near them. The 
plants flower in July, and the feeds ripen in autumn. 
This plant, whence once planted in a garden, will 
propagate faft enough by its trailing branches, which 
put out roots at every part. It will thrive in almoft 
any foil or fituation. 
The fecond fort grows naturally in many parts of 
North America. The ftalks of this fort rife higher 
than thofe of the former; the branches are (lender but 
ligneous ; they have a brown bark, and are garnifhed 
with downy leaves Handing upon pretty long foot- 
ftalks ; thefe are compofed of three oval lobes about 
two inches long, and one and a half broad, indented 
angularly, and are hoary on their under fide. The 
male flowers, which are produced on feparate plants 
from the fruit, come out from the fide of the ftalks 
in clofe fhort fpikes ; thefe are of an herbaceous co- 
lour, and have five fhort ftamina in each. The fe- 
male flowers are produced in loofe panicles ; thefe are 
6 in 
