32 
P II A C A. 
afcending; ftigma Ample. Pericarpium : legume oblong proftrate. Stipules villofe and ciliate, in other refpe$2 
inflated, half two-celled, with the upper future deprefled like thofe of the P. Halleri. Flowers commonly on two 
towards the lower. Seeds feveral, kidney-form. Le- peduncles, longer than the leaves. Leaflets fifteen or 
game in fome ftraight, in others recurved, fo that the tip twenty in number, whitifh. Calyx villofe and blackifti. 
almoft touches the bafe. In fome fpecies of Aftragalus, Standard oblong, and (landing up: wings oblong, narrow, 
the partition of the legume not being fattened to the rounded at the end : keel a little fhorter than the wings, 
lower future, though it approximates to it, the great having a little black at the end. Legume a little villofe. 
affinity between that genus and this is apparent.— Effen- It is difficult to diftinguifh thefe two plants, without' 
tiul Charatter. Legume half-two-celled ; calyx with five feeing the wings of the corolla, which in the latter have 
teeth. There are fourteen fpecies. not the Angular character noticed by Haller and Linnaeus. 
1. Phaca Bcetica, hairy phaca, or baftard-vetch : cau- Ph. Gerardi however feems to be more villofe, and is lefs 
lefcent, eredl, hairy; legumes round-boat-fhaped. Roots 
perennial, running very deep into the ground. Stems 
commonly near four feet high, becoming woody, but 
decaying every autumn. Flowers in (hort axillary fpikes, 
feldom opening in England, unlefsthe feafon proves very 
warm ; and never producing feeds here. Native of Spain 
and Portugal. Cultivated here in 1640, as appears from 
Parkinfon. 
2. Phaca alpina, or fmocth baftard-vetch : caulefcent, 
erefil, fmooth; legumes oblong, inflated, fomewhat hairy. 
This has fmooth (talks, which do not rife fo high as thofe 
of the preceding; the flowers are finaller, the podsfhorter 
and hanging down. It flowers in two years from feed, 
and the roots rarely live longer than three or four years. 
Flowers pendulous, imbricate, fmooth, yellow; calyx 
bell-fhaped, fmooth, with brown teeth; corolla oblong, 
yellow. Seeds eight. 
According to Villars, Linnaeus has confounded Phaca 
frigida of Jacquin, with Ph. alpina; or perhaps he was 
not acquainted with the Ph. alpina of Dauphine. Hal¬ 
ler in his later works has diftinguifhed them. This plant 
lias no fmell. It is a native of Siberia, Lapland, Aultria, 
See. Cultivated by Mr, Miller in 1759, and' flowers in 
Juiy. Jacquin doubts whether the Phaca which Gerard 
has deferibed in his Flora Gallo-provincialis be the fame 
with this ; the leaves being fomewhat different, and the 
habit very much fo. See N° 4. 
3. Phaca ffalfula, or fait baftard-vetch: caulefcent, 
eredV, canefcent; leaves pinnate; legumes peduncled, 
globular, drooping. In the herb and form of the legumes 
this very much refembles Aftragalus chinenfis. It is a 
native of Siberia. 
4. Phaca Auftralis, or trailing baftard-vetch : ftem 
branched, proftrate ; leaflets lanceolate ; wings of the 
flowers femibifid. Leaves fix-paired or thereabouts, a(h- 
coloured, hairy. Flowers wdiitiffi yellow. Wings femi¬ 
bifid, which is lingular. The keel of the corolla is violet, 
nor has it the two violet fpots at the tip, as in Ph. alpina, 
from which it differs little. When young it is hirfute, 
but as it advances becomes fmooth, and appears like a 
different plant. 
Villars deferibes it under the name of Phaca Halleri. 
Root hard, fmall, creeping, divided at the upper part into 
feveral branches. Stems feveral, fmooth, almoft ftraight, 
half a foot long, fometimes branched. Leaves on a pe¬ 
tiole naked at the bafe, placed between two lanceolate 
ftipules, compofed of five or feven, as far as thirteen, 
leaflets, which are lanceolate, tender, green, diftindl, 
fmooth, or very (lightly villofe underneath. Peduncles 
from the upper axils, exceeding the plant in height, and 
terminated by ten or twelve flowers, which are whitifh or 
greyifh, with a fmall blackifti ftripe, correfponding with 
the extremity of the keel: ttandard ftraight, almoft 
round, emarginate; wings oblong, with a triangular 
notch, equal to the two lateral pieces; a Angular 
character which Haller notices, but which is found in 
fome fpecies of the Aftragalus. Legumes pendulous and 
peduncled, inflated and fmooth, in a blackifti calyx; they 
are (lightly villofe, and contain from eight to ten feeds. 
Villars deferibes another, under the name of Phaca 
Gerardi , fuppofing it may probably be the plant of Monf. 
Gerard, but neither Haller’s N° 403, nor Linnaeus’s P. 
auftralis Roots hard, fmall and branching as in the pre¬ 
ceding. Stem from eight or ten inches to a foot in length, 
uncommon ; the ftems alfo are lefs proftrate. Native of 
the fouth of Europe. Introduced in 1779, by Anthony 
Chamier, efq. It flowers in May and June. 
5. Phaca arenaria, or fand baftard-vetch ; ftems afcen¬ 
ding, fmooth, nearly Ample; leaves of about five pair of 
lanceolate fmoothifti leaflets, the odd one nearly feffde; 
legumes globular, ereft. Native of fandy ground in Si¬ 
beria, about the Uda ; flowering in May. 
6. Phaca halicacaba, or reticulated bladder baftard- 
vetch : ftems procumbent; leaves of about five pair of 
oblong acute hoary leaflets, the odd one nearly fefflle ; 
calyx inflated, ovate, reticulated, hairy. Native of 
Galatia. Stems feveral, (hort. Clufters axillary, (talked, 
of from three to five yellow flowers. Like Ph. incana 
hereafter deferibed ; but caulefcent, with (mailer leaflets 
and larger calyx and bradteas. 
7. Phaca denfifolia, or crowded-leaved baftard-vetch: 
ftem decumbent, branched, fmooth; leaflets numerous, 
crowded, obovate, emarginate, villous beneath; calyx 
woolly; legume turgid, ovate, nearly fmooth. Gathered 
by Mr. Menzies in California. The habit and fize of this 
curious non-defeript fpecies fomewhat approach to the 
two firft, but the decumbent mode of growth diftinguiflies 
it from them. The copious leaves, about three inches 
long includi ng their (talk, and theircrowded, emarginate, 
folded leaflets, confiding of from fixteen to twenty pair, 
woolly underneath, are altogether peculiar. Flower-ftalks 
axillary, thrice as long as the leaves, each bearing an 
oblong denfe duller of reddifti drooping flowers. The 
legume is not unlike that of a Colutea, an inch and a half 
long, ovate, pointed, turgid, polilhed, with a few minute 
hairs near the point. 
8. Phaca trifoliata, or three-leaved baftard-vetch : 
leaves ternate, oval, blunt; legumes femi-orbiculate. 
Stems filiform, branched. Native of China. 
9. Phaca veficaria, or fmooth bladdery baftard-vetch : 
(lemlefs, fmooth ; fruiting calyxes ovate, inflated ; leaflets 
lanceolate. Native of theLevant, where it was found by 
Tournefort. 
10. Phaca incana, or hoary bladdery baftard-vetch : 
ftemlefs, hoary; fruiting calyxes ovate, inflated, villofe ; 
leaflets oblong, blunt. Native of Armenia, where it was 
found by Tournefort. 
11. Phaca Sibirica, or Siberian baftard-vetch: caule¬ 
fcent; leaflets in fours, lanceolate, blunt, filky; calyx 
villofe ; teeth briftle-fhaped. The whole is clothed with 
foft white hairs. Leaves pinnate to the very infertion, 
filky. Peduncles (horter than the leaves. Corollas 
purple. Native of Siberia, in very dry fand; found by 
profeffor Pallas. 
12. Phaca prollrata, or procumbent baftard-vetch: 
ftemlefs ; leaflets binate, linear, filky; fcape procumbent; 
calyx villofe; teeth lanceolate, (hort. A radical tuft, 
compofed of very villofe white feales. Found by profeffor 
Pallas in the fait fands about the lakes of Siberia. 
13. Phaca microphylla, or fmall-leaved baftard-vetch : 
ftemlefs; leaflets binate, ovate, obtufe, villofe; calyx 
inuricateand hairy; teeth hifpid every way. Leaves few, 
ftiort, on very villofe petioles: leaflets very fmall. Co¬ 
rolla large, purple. Found by Pallas in the fandy iflands 
of Siberia. 
14. Phaca muricata, or muricated baftard-vetch: ftem¬ 
lefs ; leaflets in threes or fours, linear, awl-ftiaped, muri- 
cate underneath ; calyx fmooth ; teeth ciliate. Corollas 
3 yellow. 
