CRUCIFERS. (MUSTARD OR RADISH FAMILY.) 37 
stem-leaves lanceolate or linear , half-clasping by the arrow-shaped base, 
entire or nearly so; petals twice the length of the calyx; pedicels erect 
in flower and fruit; the linear elongated pods upright or spreading._ 
Jefferson and Chenango counties, New York, and L. Superior. May. 
~~ A foot high. Root-leaves small. Petals white, tinged with purple. 
Uipo pods 3' long, broader and flatter than in No. 1, and not always 
strictly upright. J 
V- '*>•»<■ liyc.lrpa, Torr. & Gray. (Short-podded Tow- 
er Mustard.) Smooth and glaucous; stem-leaves linear-lanceolate, 
acu arrow-shaped ; pedicels of the flowers nodding , of the short and 
nroadish pods spreadmg or ascending. - Fort Gratiot, &c., Michigan. 
Root-leaves hairy. Pod 1'long. Flowers pale purple. 
11.4HB.1BEA, R. Br. Winter Cress. 
b/,1 !i near ’ S ° m r Vhat 4 ' 8ided ’ thC Val¥6S ^ strongly keeled 
ip '"T' 6 ’ ® 6eds ln a sln S le row in each cell, marginless. 
— 
'2*2? | Crew. Yeli.ow 
X-a.”" 
into the NortherrVtate^ ana it a hM d l ” s P arin g'y introduced 
short style. Il ha * lon 8 er fla «ened pods and a very 
Tribe n. SISYMBmtL*. T„ He,., T „„ 
«• ' HVS. VC V, L. Teeeoee 
Pod linear, 4-stded, the valves keeled So A ■ 
m each cell, oblong maroinle* ,', S ds ln a Sln g'e row 
enmbent. Calyx erect —Chi fl ed ° nS ° ften oblic l u ely in- 
s» te"e. „ .. ,nJ1 L “ ’ ! ""'™ ««"«- : 
a? T“r 
■ - - J 
