NE0PHYT0N. 
29 
dal, nearest to C . acutifolia , chief difference 
in pinnules entire less acute broader, silicules 
quite triangular with acute angles. — It is pro- 
bable that these plants are deviations sprung 
from each other, but some are really native of 
wild localities and not introduced : to deem 
them mere varieties would be preposterous, 
since they differ as widely in leaves and fruits 
as any acknowledged species of Sinapis or 
Lepidium , which ought oil such felse princi- 
ples be made hut single species. I have not yet 
met in America the C. coronopifolia of Eu- 
rope having leaves with narrow remote seg- 
ments. The monstruous deviation called ape- 
tala by Opiz and Decandole, is evidently an in- 
cipient New Genus formed in Europe, not even 
of this family, having no petals, 10 stamens, in- 
stead of 4 petals and 6 stamens ! I call it Opi- 
ZIA BURSOIDES Raf. 
255. Calystegia riparia Raf. sepium of 
Amer. hot. not L. nor Europe. Procumbent, 
twining, leaves cordate oblong, lobes rounded 
seldom acute, peduncles uniflore terete very 
long, calicule longer than calix ovate concave 
obtuse — annual, on the margins of rivers, 
. streams and marshes in New Jersey and New 
York, flowers estival white incarnate. Mista- 
ken by our botanists for the Convolvulus sepi- 
um of Europe, Calystegia sepium of R. Brown 
and Pursh ; a smaller plant not climbing, leaves 
and flowers smaller. 
255. Brunella microphylla Raf. stem pi- 
lose geniculate dwarf, leaves very small smooth 
subentire obtuse, lower ovate on long petiols, 
upper oblong subsessile, heads subsessile glo- 
bose or ovate, bracts scariose reniform venose 
ciliate acuminate — summits of mts. in Allegha- 
