Lathyrus A p h a c a . Y e l l ow V e t c h l i n g .
LATHYRUS Lin. Gen. PL Diadelphia D ecandria.
Stylus planus, fupra villofus, fuperne Iatior. Cal. Iacinke fuperiores
I breviores.
Raii Syn. Gen. 23. Herbæ flore papilionaceo seü leguminosæ.
LATHYRUS Aphaca pedunculis unifloris, cirrhis aphyllis, ftipulis fagittato-cordatis. Lin. Sv/lt
Vegetab. p. 662. Sp.Pl. 1029.
LATHYRUS aphyllos ftipulis fagittatis latiffimis. Haller hiß. n. 442.
LATHYRUS Aphaca. Scopoli Fl. Carn. n. 887.
VICIA lutea foliis convolvuli minoris. Bauh. Pin. 345.
APHACA Parkin/. 1067. Ger. mac. 1250. Raii Syn. ed. 3. p. 320. Hudfon Fl. Angl. ed. 2. p. 315,
BaAD TX a n n u a , f ib r o f a .
ICAULIS p e d a lis , f e f q u ip e d a l i s , e t u l t r a , d e b i l i s , o p e
c i r r h o r u m f c a n d e n s , t e t r a g o n u s , la e v is .
■ FOLIA n u lla .
f STIPULAL bin ae, m a g n a s , f a g i t t a t o - c o r d a t a e , o b tu fa e ,
u t r in q u e . p r o p e b a f in d e n t i c u l o n o ta ta e ,
g lau c a e , f u b tu s n e r v o fa e .
[ C lR R H U S f im p l e x , p a t e n s .
I g L O R E S lu t e i , p a r v i , f o l i t a r i i , p e d u n c u l a t i , a x i l la
r e s .
IPEDUNCULI fo l i i s l o n g io r e s , t e t r a g o n i , u n i f lo r i ,
b r a& a e a m in im a p r o p e f lo r em in f t r u f t i .
■ CALYX: P e r i a n t h i ü m m o n o p h y l lu m , q u in q u e
p a r t i tum , la c in i i s l a n c e o la t i s , fu b a s q u a l ib u s ,
n e r v o f is , l o n g i t u d in e f e r e c o r o l la s , Jig. 1 .
■ COROLLA p a p i l io n a c e a , V e x i l l u m lu t e u m , r e -
f le x u m , in tu s l in e i s c a e ru le is f t r i a t u m , Jig. 2.
A l a : lu te a e , fu b r o tu n d a e , l o n g i t u d in e C a rin as ,
h am is d u o b u s in a e q u a l ib u s , p a l l id i o r ib u s ,
fig. 3 . C a r i n a p a l l id e f u lp h u r e a , p o f t i c e
fifla, f ig . 4.
ISTAMINA: F i l a m e n t a d e c e rn , f im p l e x , e t n o v em
fid um , a f fu r g e n t i a , a lb id a ,- A n t h e r a : fu b -
ro tu n d a s , lu te a e , fig. 5 .
■ ITILLUM Germen oblongum, compreflum, vi-
ride» glabrum; Stylus furfum ereftus,
pallidior, fuperne latior, obtufus; Stigma
a medietate ftyli antice villofus, fig. 6'.
^felCARPIUM: L e g u m e n u n c ia l e , l a t iu f c u lu m ,
c om p r e f lum .
K^IINA feptem oftave, fubrotunda, nitida.
ROOT annual, and fibrous.
STA LK a foot, a foot and a half or more in height,
weak, climbing by means o f its tendrils,
- four-cornered, and fmooth.
LEAVES none.
ST IPU LE growing in pairs, large, betwixt arrow
and heart-lhaped, obtufe, on each fide near
the bafe fumilhed with a tooth, glaucous,
and ribbed on the underfide.
TENDRIL Ample and fpreading.
FLOWERS yellow, fmall, folitary, growing on
footftalks from the alas of the leaves.
FLOWER-STALKS longer than the leaves, four-
cornered, one-flowered, furnilhed near the
flower with a minute bra&aea or floral leaf.
C A L YX : a Perianthium o f one leaf, deeply divided
into five fegments, which are lanceolate,
nearly equal, ribbed, and almoft the
length of the corolla, 1.
COROLLA papilionaceous, Standard yellow, reflexed,
ftriped on the infide with blue lines,
fig. 2. W ings yellow, nearly round, the
length o f the keel, claws twoj unequal,
paler, fig. 3. K eel of a pale fulphur colour,
cloven behind, fig. 4.
STAMINA: ten Filaments, one Angle, nine con-
ne£led, rifing upwards, whitilh ; A nther a;
roundifh and yellow, fig. g.
PISTILLUM G ermen oblong, flat, green, and
fmooth, Sty le rifing. upwards, upright,
paler, dilated above, obtufe ; Stigma which
rifes from the middle of the ftyle villous on
its fore part, fig. 6.
SEED-VESSEL: a Pod about an inch in length,
broadilh, and flattened.
SEEDS feven or eight, roundilh, and Alining.
L i^ e ^riVe ^Cre a ,vei7 unu^ua^ phenomenon in the vegetable ceconomy, a plant whofe ftipulas fupply the
| V uM jares* at !e , w*?®n plant becomes o f a certain age; for, by a kind of accidental examination,
I one t6 ^ dl*cove.red that this fpecies of Lathyrus, foon after it comes up from feed, is ufually fumifhed with
Pair ?* *eaves» fimilar to the other plants o f this family, but which, as the plant advances
I «ally difappear; thefe are reprefented at fig. 7.
oflf!°m^What„flT ilar aPPearanc? we noticed laft fummer at Mr. Malcolm’s, Kennington, in a rare fpecies
iwhorled ’ Ca e<^ ver^ ^ a^as all the leaves o f the young plants were pinnated, and all thofe of the old plants
w L r l f /EUr ’ Species Plant, takes fome notice of the Aphaca’s producing leaves; his words are, Cirrhus
■ m wquis gerit foliola conjugata, 2, lanceolata, reliquis Lathyris Jimillima at hoc rarijjime.
1 7 * 1 1 I I °^r ^knration, the leaves grew on footftalks in the ufual way, without any, or a very fhort
■ when vntn observable on every feedling; hence we fufpeft them to be common to this plant
■ younS 5 aod rare, merely from being overlooked.
*s ,an annual which grows fpontaneoufly in our com fields, but is not common in the neigh-
B London; we have obferved it moft frequently about Tottenham and Enfield.
■ flowers in June and July.
■ ° Part‘cular ufes or noxious qualities are afcribed to it.