PAPAVERACEAE 547 
and the flower used to distinguish them do not seem to be constant indices 
the group 
2. STYLOPHORUM Nutt. Perennial herbs, with orange-yellow roots. 
Leaves cauline: blades pinnately lobed or dissected. Flowers usually few or 
several. Sepals 2, pubese cent. Petals 4 
Tr 
dese pce Stigma erown-like, Cap- 
sule Seed 
species, p» following and 3 in Asi 
1. S. diphyllum (Miehx.) Nutt. Plant 
2-5 dm. tall, pubescent: leaf-blades 2-pin- 
segmen : 
natifd, the roadened upward; 
petals deep-yellow, obovate, 1-1.5 em. long 
e d or oval, about 2.5 em. long 
—( CELANDINE-POPP MOoCK-POPPY. 00 
Y. P 
POPPY. YELLOW-POPPY.)—Woods, often in 
calcareous a various provinces, N of Blue 
Ridge, Tenn. to Mo., Wis., and W Pa.—Spr. 
3. CHELIDONIUM [Tourn.] L. Biennial or perennial herbs. Leaves 
cauline: blades pinnately dissected. Flowers numerous. Sepals 2. Petals 4, 
broad, but longer than wide, yellow. Gynoe- 
eium slender, 2-earpellary. Stigmas 2. Cap- 
sule ia species. 
1. C. S L. Plants 2-7 dm. tall: leaf- 
blades 13 ps long, the segments ig nds 
or teeth: petals Pu pi 8—13 m 
eapsule slender, 3-5 em. long.—(CEL NE 
ROCK-POPPY. und. WORT. )- Roads! ides 
n 
various provinces in N, G Ont 
M at. of Eu.—Spr.—Celandine, like 
hoarhound, catnep, and similar he 
ep, rbs, was 
brought to this country by early settlers 
from Europe. Being a popular remedy 
various external and internal body-disorders 
it early became naturalized about dwellings over a large area. It has active 
medicinal properties | 
4. PAPAVER [Tourn.] L. Annual or perennial herbs. Leaves sometimes 
mainly basal: blades mostly pinnately lobed. Flowers few or solitary, the buds 
drooping. Sepals 2, or rarely 3. Petals 4, or rarely 6, broad. Gynoecium 
several-carpellary, the ovary with 4—20 septiform placentae. Stigma crown-like 
disk-like. Capsule long, short, or en —About 45 species, all, except 4 
or 5, natives of the Old World.—PoPP 
Plant Be ele leaf-blades lobed, clasping at the base: capsule subglobose or de de- 
press er 
pu p s mostly hirsute: leaf-blades pinnately divided, 
narrowed at the base: capsule elongate, or longer than thick. 2. P. dubium. 
niferum L. Plant 3-10 dm. tall: leaf-blades 6-20 dm. long, the 
lobes footed: sepals So petals ‘white to purple, 2.5-5 em. long: fila- 
