Senebiera.] CRUCIFERAE. 11 
3—6‘ long when full grown, with a filiform rhachis which is naked below, 
als 
he flowers crowded toward its end. Petals less distinctly clawed than 
efore. Silicule 2, ovate, entire, very flat, the style very short, less than 
1/2, Cotyledons apparently incumbent, 
hu! open ridges of the Waianae Mts. (Makaha). The innovations rise from 
the apex of the last year’s prow: a under the raceme, the new branches strongly 
defiected from the axis of the las 
3. L. serra, Mann, Enum. no. 6. — A straggling, ase branched shrub, 
wded 
2—3 ft. high, nearly glabrous. Leaves crow the ends of we 
branches, lanceolate, png closely and sharply Bh Cosette chart. 
ceous, 3‘ < 4—5’, on petioles of about half their length. aoe 
a branching panicle, ae in a corymbose manner, the racemose 
branches subtended by linear entire bract-like leaves. Flowers along the 
greater part of the branch on pedicels of 3. Stamens 6, longer than 
the petals. Style slender, 1/2—1‘ long. Silicule flat, suborbicular, not 
emarginate. Cotyledons accuwmbent (according to Mann). 
Kauai! Hanapepe to Waimea (M. & B. Wawra, Kn). 
74. L. Virginicum, LZ. — DC. Prod. I, 205. = Heavbaceutin: about 1 ft. high, 
freely branching, glabrous. Lower leaves pinnatifid, the upper lanceolate- 
dentate or incised. Stamens 2. Silicule orbicular, wingless, shortly emar, 
ginate. Cotyledons accumbent. — Gray, Man. Bot. p. 38. 
ast Maui! First appeared in canefields of Ulupalakua, but has spread now over 
the southern slope of Haleakala 
2. SENEBIERA, Poir. 
Sepals short, patent, equal at the base. Stamens often only 2. Silicule 
small, compressed contrary to the narrow partition, the two carpels inde- 
hiscent, falling away as closed nutlets, wrinkled or tuberculate, 1 ed. 
Stigma sessile. Embryo curved, the cotyledons incumbent and folded, 
gradually tapering into the radicle. — Low and diffuse herbs, with minute 
whitish flowers on racemes which are opposite to the leaves. 
About 6 species, inhabiting the temperate and warm regions of both hemispheres. 
+1. S. didyma, Pers. — A prostrate annual, branching from the base, 
hispidulous or glabrate. Leaves once or twice pinnatisect. Silicule shorter 
han the pedicel, transversely wrinkled, notched at both ends. — S. pinnati- 
fda, DC. — L ae um eee L. 
The Peppergrass m weed in gardens, a ree of the warmer parts of N. 
America, but widely spheenne pen many “eee eountri 
3. CARDAMINE, L. 
Pods linear, the valves flat, without a conspicuous midrib, and opening 
from the base by elasticity. Seeds apparently in a single row in each 
cell, not margined. Radicle accumbent. Flowers white or purple. 
