85 
caulinis sessilibus lineari-lanceolatis dentatis, rti- 
cemis laxis, petalis calice longioribus Raf.—Coch- 
learia 1. Rob. p. 466. The genus Nasturtium of 
Tournefort, Ventenat, &c. to which this plant 
belongs, differs from Lepidium by having a notch¬ 
ed silicule, the stigma sessile in the notch ; stem 
about a foot high, flowers white, calyx open with 
four concave folioles, silicule compressed, round¬ 
ed, notched. The root is white, juicy, elongated, 
of a sweeter taste than the leaves, it might be¬ 
come comestible. Blossoms in February. 
XX. N. G. Dileptium Raf. Calyx 4 phyllus, foliolis 
concavis clausis, corolla 4 petala, petalis lineari- 
bus integris. Staminibus 2. angulis ovarium alter- 
nis: ovarium compressum emarginatum, stigma 
sessile emargina insertum. Siliculis subrotundis 
compressis emarginatis bilocularis dispermis, val~ 
vis carinatis.—Obs. This genus differs from A r as~ 
turtium by the number of stamina, small petals, 
&c. The name means two minute stamina. The 
Lepidium Virginicum L. belongs to this genus. 
272. Dileptium diffusum Raf. Caulibus procumben- 
tibus diffusis ramosissimis, foliis pinnatindis, pin- 
nulis dentatis, racemis laxis axillaribus termina- 
libusque, petalis minutissimis calice brevioribus 
Raf.—Cochlearia 3. Rob. p, 467. It forms thick 
turfs of a foot or two in diameter, many small 
leaves. It blossoms at the end of March, and 
grows like grass, covering often large spaces of 
ground ; it is eaten as cresses. 
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