TETKADYNAMIA' SILIQUOSA. 151 
Armo^^acid. Horfe Radijh with lanccolated, crenated, 
! radical leaves, and thofe on the ftaik cut. Found plen- 
tifully about Alnwick and elfewhere in Ncr thumb, R. Sy, 
May, 
I B E R I S. Rock Cresse. 
The cup is tetraphyllous, the leaves obovate, concave, 
I patent, fmall, equal and deciduous. The flower is tetra- 
petallous and unequal. The petals are obovate, obtufe, 
j patent, and the ungues are oblong and eredl, the two 
exterior petals are longer than the other two, which are 
very fmall and reflex^ The fix filaments are fubulated 
: and eredt, two of which are fhorter than the red, having 
I roundifli anthers. The germen is round ifli and com- 
prefTed, the flyle is fimple and fhort, and the fligma is 
! obtufe. The filicula is ere6t, fuborbiculated, compref- 
I fed, emarginated, bilocular, and furrounded with an 
acute margin-, the diffipimentum is lanceolated, the 
[ valves are navicular, or refemble a fhip, comprefTed, and 
I keel-lliaped, containing a few fubovate feeds. 
' Nudicaulis, Rock Crejfe with finuated leaves, and a fim- 
j pie naked ftalk. Near Hampton Court,, Richmond and 
I Barnes commons, Mr Doody, R. Sy, Ann, May, 
I 
S I L I Q^U O S A. 
Comprehends fuch as have long Jlender pods^ and fcarcc 
any flyle. 
D E N T A R I A. Coal-wort. 
The cup is tetraphyllous, the leaves ovato-oblong, 
convergent, obtufe and deciduous. The flower is tetra- 
petalous and cruciform, the petals are roundifh, and ob- 
tufe, fcarcely emarginated, plain and ending in ungues, 
the length of the cup. There are fix fubulated filaments 
the length of the cup, two of which are fhorter than the 
Others. The anthers are cordato-obiong and ereft. The 
germen 
