PAPAVEEACEAE. 129 



Capsules turbinate-obovate : pedicels bristly-pubescent. 2. P. Rhoeaa. 



Plants glaucous : leaf-blades lobed, clasping at the base : cap- 

 sules subglobose or depressed. 3. P. somniferum. 



1. P. dubium L. Plants 2-7 dm. tall: leaf -divisions entire, or sparingly 

 toothed or incised: sepals hirsute: petals scarlet, 2.5-3.5 cm. long: filaments 

 filiform : capsules 1.5-2 cm. long. Common, in fields and on roadsides. Nat. 

 of Eu. Spr. and sum. SMOOTH-FRUITED POPPY. 



2. P. Rhoeas L. Plants 2.5-5 dm. tall: leaf -divisions lobed, much toothed or 

 incised, acute or acutish: sepals hirsute, mostly 11-16 mm. long: petals scarlet 

 dark near the base, almost reniform: 2.5-5 cm. long: filaments filiform: cap- 

 sules 8-10 mm. long. S. Occasional, in fields. Nat. of Eu. Spr. and sum. 

 FIELD-POPPY. CORN-POPPY. 



3. P. somniferum L. Plants 3-10 dm. tall: leaf -blades 6-20 dm. long, the 

 lobes toothed: sepals glabrous: petals white to purple, 2.5-5 cm. long: fila- 

 ments clavate : capsules subglobose or depressed, 2-3 cm. long. M. Bare, in 

 fields and waste places. Nat. of Eu. Sum. OPIUM-POPPY. GARDEN -POPPY. 



4. ARGEMONE L. Annual or biennial herbs. Leaves cauline: blades 

 incised-pinnatifid. Flowers few, the buds erect. Sepals 2 or 3, hooded or 

 horned. Petals 4 or 6, broad. Gynoecium 4-6-carpellary, the ovary with 4-6 

 nerviform placentae. Stigma 4-lobed. Capsule elongate. 



1. A. mexicana L. Plants glaucous, 3-9 dm. tall, more or less spiny: leaves 

 10-25 cm. long; blades runcinate-pinnatifid, blotched, spiny-toothed and com- 

 monly spiny along the midrib, sessile and clasping: flowers sessile or nearly so: 

 sepals acuminate and bristle-tipped: corolla yellow, 3-7 cm. broad: capsules 

 oblong, 2.5-3 cm. long, spine-armed. S. Bare, on roadsides. Nat. of trop. 

 Am. Sum. PRICKLY-POPPY. 



FAMILY 2. FUMAEIACEAE. FUMITORY FAMILY. 



Herbs, sometimes vines, the sap watery. Leaves alternate: blades 

 dissected. Flowers perfect, irregular. Calyx of 2 scale-like sepals. 

 Corolla of 4 petals, sometimes persistent, the outer with spreading tips 

 and one or both of them saccate or spurred at the base, the inner 2 smaller, 

 thickened at the tip and enclosing the stigma. Androecium of 6 dia- 

 delphous stamens, the middle anther of each group 2-celled, the lateral 

 ones 1-celled. Gynoecium 2-carpellary. Fruit a silique, capsule or a 

 nutlet. 



Each of the two outer petals spurred at the base. 



Petals permanently united and enclosing the capsule : seeds crestless : vines. 



1. ADLUMIA. 

 Petals lightly united, deciduous : seeds mostly crested : acaules- 



cent herbs. 2. BICTJCULLA. 



One of the 2 outer petals spurred at the base. 



Ovules several or many : fruit an elongate capsule : seeds with 



crests or arils. 3. CAPNOIDES. 



Ovule solitary : fruit a globose nutlet : seed crestless. 4. FDMARIA. 



1. ADLUMIA Eaf. Biennial or perennial tender vines. Leaf -blades with 

 broad segments. Flowers mostly in panicle-like cymes, white or pink. Sepals 



2, toothed. Stamens 6, inonadelphous below, the 3 filaments of each group 

 united to near the anthers. Capsule included. 



1. A. fungosa (Ait.) Greene. Leaf -blades decompound, the ultimate divisions 

 entire or lobed, 3-10 mm. long: corolla 15-18 mm. long: petals pink or whitish, 

 the inner with suborbicular blades about 1.5 mm. broad: capsules slender, 

 Lancaster County Flora 9. 



