DIADELPHIA DECANDRIA. 171 
O R O B U S. Wood Pease, or PIeath Pease. 
The cup is monophyilous, tubulated, obtufe at the 
bafe, oblique at the brim, quinquedentated, and very 
fhort; the three inferior denticles are more acute, the 
two fiiperior are ihorter, more deep and obtufely divided 
and wither away. The flower is papilionaceous, the vex- 
illum is obcordate, reflex at the apex and the Tides. The 
two wings are oblong and almoft the length of the vex- 
illum and bent like a bov/ and are connivent. The 
keel is evidently bind, acuminated, rifing like a bow, the 
margins are connivent, parallel, comprefled with aven- 
tricofe bottom. There are ten (lamina, nine are join- 
ed and one feparate with roundifli anther^e, the germen 
is cylindrical and comprelfed, the ilyle is (lender, bend- 
ed and eredl, the (ligma is linear and downy. The le- 
gumen is round, long with a pointed apex, which is 
unilocular with two valves containing many roundifli 
feeds. 
T uberofus, JVoed Peafe or Heath Peafe v/ith lanceola- 
ted, pinnate leaves, half arrtw-pointed, and a Ample 
ftalk. In meadows and paAures, woods and hedges. 
Per, May, 
b)ylvaticus, JVood Vetch or Bitter Vetch with branchy, 
rough, decumbent ftalks. In woods and hedges. Per. 
July. 
LATHYRUS. Chickling Vetch. 
The cup is monophyilous, femiquinquifid, campanil- 
lated, the fegments are lanceolated, and acute; the two 
upper ones are (horter and the lower longer. The 
flower is papilionaceous. The vexillum is obcordate, 
very large, reflex in the Aides and apex. The v/ings are 
oblong, lunulated, fliort, and obtule. The keel is in a 
half orb, the fize of the wings, but broader and opens 
in the middle. There are ten (lamina, nine of them are 
joined and one is feparate, and the antherae are roundifli. 
Z 2 The 
