O RO 
o R 6 
Bitter Vetch with fpear-fhaped winged leaves , entire 
half arrow-pointed Jlipuks , and a fingle ftalk. Orobus 
fylvaticus foiiis obiongis glabris. Tourn. Inft. R. H. 
393. JVood Bitter Vetch with oblong fmooth leaves. 
3. Orobus ( Sylvaticus ) caulibus decumbentibus hirfutis 
ramofis. Cent. pi. 67. Flor. Angl. 275. Bitter Vetch 
with hairy , branching , decumbent Jlalks. Orobus fylvati- 
cus noftras. RaiiSyn. 324. Wood Bitter Vetch. 
4. Orobus {Niger) caule ramofo, foiiis fexjugis ovato- 
oblongis. Hort. Cliff. 366. Bitter Vetch with a branch- 
ing Jlalk, and leaves compofed of fix pair of oblong oval 
lobes. Orobus fylvaticus foiiis vicis. C. B. P. 352. 
Wood Bitter Vetch with a Vetch leaf. 
£. Orobus ( Pyrenaicus ) caule ramofo, foiiis bijugis lan- 
ceolatis nervofis, ftipulis fubfpinofis. Lin. Sp. 1029. 
Bitter Vetch with a branching Jlalk , and leaves compofed 
of two pair of nervous fpear-fhaped lobes. Orobus Pyre- 
naicus, foiiis nervofis. Tourn. Inft. 393. Bitter Vetch 
of the Pyrenees with nervous leaves. 
6 . Orobus {Latbyroides) foiiis conjugatis fubfdfilibus, 
ftipulis dentatis. Hort. Upfal. 220. Bitter Vetch with 
leaves placed by couples clofe to the Jlalks , and indented 
ftipula. Lathyroides ere&a, folio ovato acuminato, 
casruleis vicias floribus & filiquis, Sibirica. Amman. 
Ruth. 1 5 1 . Siberian , upright, Bajlard Lathyrus , with an 
oval acute-pointed leaf, blue flowers, and pods like thofe 
of the Vetch. 
7. Orobus ( Luteus ) foiiis pinnatis ovato-oblongis, fti- 
pulis rotundato-lunatis dentatis, caule fimplici. Lin. 
Sp. Plant. 728. Bitter Vetch with oval, oblong, winged 
leaves, roundifh , moon-fhaped, indented ftipula, and a 
fingle Jlalk. Orobus Sibericus perenne. Gmel. Peren- 
nial Siberian Bitter Vetch. 
8. Orobus ( Venetis ) foiiis pinnatis ovatis acutis, qua- 
tuor-jugatis, caule fimplici. Tab. 193. fol. 2. Bitter 
Vetch with oval, acute-pointed, winged leaves, having 
four pair of lobes and a fingle Jtalk. Orobus Venetus. 
Cluf. Hift. 232. Venetian Bitter Vetch. 
c). Orobus {Americanus) foiiis pinnatis lineari-lanceola- 
tis inferne tomentofis, caule ramofiffimo frutefcente. 
Bitter Vetch with linear, fpear-fhaped, winged leaves , 
which are woolly on their under fide, and a very branch- 
ing fhrubby Jlalk. Orobus Americanus ere&us, fo- 
liorum pinnis anguftoribus & fubtus incanis, liliquis 
glabris. Houft. MSS. Upright American Bitter Vetch, 
with very narrow lobes to the leaves, hoary on their under 
Jide, and having fmooth pods. 
10. Orobus {Argenteus) foiiis pinnatis oblongo-ovatis 
inferne fericeis, caule eredo tomentofo, floribus fpi- 
catis terminalibus. Bitter Vetch with oblong , oval, 
winged leaves , which are filky on their under fide, and 
have an upright woolly Jlalk , terminated by a fpike of 
flowers. Orobus Americanus, latifolius, argenteus, 
flore purpureo. Houft. MSS. Broad-leaved , filvery, 
American Bitter Vetch, with a purple flower. 
11. Orobus (. Procumbent ) foiiis pinnatis, foliolis exteri- 
oribus majoribus tomentofis, caule procumbente. 
Bitter Vetch with winged leaves, whofe outer lobes are 
woolly , and a trailing Jlalk. Orobus Americanus pro- 
cumbens & hirfutus, flore purpureo. Houft. MSS. 
Trailing, hairy, American Bitter Vetch , with a purple 
flower. 
12. Orobus ( Coccineus ) foiiis pinnatis, foiiis linearibus 
villofis, caule procumbente floribus alaribus & ter- 
minalibus. Bitter Vetch with winged leaves, having 
hairy linear lobes, a trailing jlalk , and flowers growing 
on the fides and at the ends of the branches. Orobus 
Americanus procumbens minimus, flore coccineo. 
Houft. MSS. The leaft trailing American Bitter Vetch, 
having a fcarlet flower. 
The firft fort grows naturally in the forefts of Ger- 
many and Switzerland. The root of this is perenni- 
al, compofed of many ftrong fibres the ftalks rife a 
foot high, and are garniflied with winged leaves, 
compofed of two pair of oval acute-pointed lobes, 
and at the bafe of the foot-ftalk is fituated a ftioula^ 
(or fmall leaf,) ftiaped like the point of an arrow cut 
through the middle. This embraces the ftalk. The 
lobes of the leaves are about an inch and an half 
long, and near an inch broad, ending in acute points. 
The flowers ftand upon foot-ftalks, which ante froifi 
the wings of the ftalk ; they are about three inches 
long, fuftaining fix or (even flowers ranged in a fpike, 
which are of the butterfly kind. Thefe are at firft. 
of a purple colour, but afterward change blue ; they 
appear early in the fpring, and are fucceededTy [len- 
der taper pods an inch and a half long, having one 
cell, in which are lodged four or five oblong bitter 
feeds, which ripen in June. There is a variety of this 
with pale flowers, which is preferved in fome gardens. 
The fecond fort grows naturally in woods and ihady 
places in moft parts of England. This hath a peren- 
nial creeping root, from which arife angular ftalks 
nine or ten inches long, garniflied at each joint by 
one winged leaf, compofed of four pair of fmooth 
fpear-fhaped lobes, and, at the bafe of each, is fitu- 
ated a ftipula like that of the firft fort ; and from the 
wings of the ftalks arife the foot-ftalks of the flow- 
ers, which are about four inches long, each fuftain- 
ing two or three purplilh red flowers, which turn to 
a deep purple before they fade. They appear in 
April, and are fucceeded by long taper pods, con- 
taining fix or feven roundifh feeds, which ripen the 
beginning of June. Thefe are called Wood or 
Heath Peas. 
The third fort grows naturally in Cumberland and 
Wales. The root is perennial and ligneous, from 
which arife feveral hairy ftalks a foot and a half high, 
garniflied at each joint with one winged leaf, compof- 
ed of ten or eleven pair of narrow lobes ranged clofe 
together along the midrib 5 at the bafe of which is 
fituated an acute ftipula embracing the ftalk. The 
flowers are difpofed in a clofe fpike, [landing upon 
foot-ftalks three inches long, which arife from the 
wings of the leaves ; they are of a purple colour, and 
are fucceeded by fhort fiat pods, containing two of 
three feeds. It flowers the beginning of June, and 
the feeds ripen in July. 
The fourth fort grows naturally on the mountains in 
Germany and Switzerland. This hath a ftrong, lig- 
neous, perennial root, from which arife many branch- 
ing ftalks two feet high, garniflied at each joint by 
one winged leaf, compofed of five or fix fmall, ob- 
long, oval lobes ranged along the midrib. The 
flowers ftand upon very long foot-ftalks, which arife 
from the wings of the ftalk ; thefe luftain at their 
top four, five, or fix purple flowers, which appear 
in May, and are fucceeded by comprefled pods an 
inch and a half long, containing four or five oblong 
feeds, which ripen the beginning of July. The 
ftalks decay in autumn, and new ones arife in the 
fpring. 
The fifth fort grows naturally on the Pyrenean mourn 
tains ; this hath a perennial root, from which arife 
feveral Imooth branching ftalks a foot and a half 
high, garniflied with winged leaves compofed of four 
pair of fpear-ftiaped lobes, which have three longi- 
tudinal veins ; at the bafe of the leaves is fituated a 
ftipula embracing the ftalk, in the fame manner as 
the firft. The flowers ftand upon long foot-ftalks, 
ariflng from the wings of the leaves ; toward the up- 
per part of the ftalk they are ranged in a loofe 
fpike, are of a purple colour, appearing in May, and 
are fucceeded by comprefled pods about two inches 
long, containing three or four feeds, which ripen int 
July, 
The fixth fort grows naturally in Siberia ; this hath a 
perennial root, from which arife three or four branch- 
ing ftalks about a foot high. The leaves ftand by 
pairs oppofite along the ftalks, to which they fit 
clofe, having an indented ftipula at their bafe ; the 
leaves are fmooth, ftiff, and of a lucid green. The 
flowers grow in clofe fpikes upon fhort foot-ftalks, 
which rife from the wings of the leaves at the 
top of the ftalks, where are generally three or four 
of riiefe fpikes [landing together. The flowers are of 
a fine blue colour, fo make a pretty appearance. 
Thefe appear in June, and are fucceeded by [hort 
flattilh pods, containing two of three feeds in each,, 
which ripen in Auguft/ * 
445 
