30 WEEDS AND USEFUL PLANTS. 
are popularly known as Buttercups, and in some localities are so abun- 
dant in meadows, as to appear at a distance like an unbrokemsheet of 
golden yellow. On account of their very acrid juice, cattle do not eat 
them i in their - fres h state, but when cut with the grass and dried, the 
ponds. Th 
at the north is R. repens, L., the long stems of which are usually pros- 
trate “so Sang at ne joints ; i has lar — ne flo es = is some- 
meadows. R. us, L., ntroduced 
ches, found i in the fields i in Virginia ney voataeand: Te aks tts 
mostly 3-lobed leaves, ce the a bso et with spiny tubercles or 
bristles. Bo and 7 sane ntly rfectly 
double pes the fesiedopionion of their mtoste of fructification into petals, 
and ently cultivated in gardens. In the double R. bulbosus, 
the tower is raha the receptacle producing, instead of a head of 
which Ae aniens seh x the old flower falls away ; this. is 
4. CAL’THA, L. Marsn Maricorp. 
[Gree a goblet ; f fe f the flower. 
Sepals 4— ta Past none. Au ot 5- ~10, without st ag forming in 
fruit many-seeded, compressed, spreading pods. S asckh, pesmanesly with 
large round or hearsahagell entire leaves. 
L C. palus'tris, L. Stem nearly erect, hollow, furrowed ; leaves round, 
heart-shaped or kidney-shaped, often wider than long, crenate or nearly 
entire. 
Marsu Cautua. Marsh Marigold. Cowslip. 
Stem 5-10 inches high, sueculent, sometimes branched. Radical leaves on petioles 3- 
$, and + Sally 2 bday a —15 inches J0ng- Flowers an inch or more in diameter, few, some- 
pene wien ice ap common a t the po gees 
O's. This plant has considerable seriity ara fresh, but heat de 
stroys it; it is much used as a ih og herb or a in “early spring. In 
New England its popular name is Cowslips (or corrupted into “ cows 
lops”). It has no botanical relation to the Cowslip nor to the Marigold. 
5. COP’TIS, Salish, Gouorenean, 
, Kop s, ent 7 £ tte At + 
Cal -7 Llike, deciduous sepals, Petals as man, ny as a 
‘sma otek oe at the apex. Sfemens 15 — 30, shorter than 
: the sepals. Pistils 3-7, each upon a short stalk, which lengthens as the 
Pp SE Ee ye ee ee 
