PAPAVERACEAE. 



143 



2. Papaver Ehoeas L. Field, Eed or 

 Corn Poppy. (Fig. 164.) Erect, l°-3° 

 high, hispid with spreading bristly hairs. 

 Lower leaves petioled, 4-6' long, the upper 

 smaller, sessile, all pinnatifid; lobes lanceo- 

 late, acute, serrate; flowers 2'-4' broad, 

 scarlet with a darker centre; filaments not 

 dilated; capsule turbinate to subglobose, 

 glabrous, the disk with 10 or more stigmatic 

 rays. 



Waste and cultivated grounds. Natural- 

 ized from Europe. Naturalized in ttie eastern 

 United States. Flowers in spring and sum- 

 mer. Shirley Poppies, garden derivatives of 

 this species, are grown in flower-gardens. 



3. Papaver dubium L. Long Smooth- 

 fruited Poppy. (Fig. 165.) Slender, l°-2° 

 high, hirsute with spreading hairs. Lower 

 leaves petioled, 4'-6' long, the upper smaller,, 

 nearly sessile, all deeply pinnately divided; 

 lobes oblong, pinnatifid, cleft or sometimes 

 entire ; flowers about 2' broad, scarlet, some- 

 times darker in the centre; filaments not 

 dilated; capsule oblong or narrowly oblong- 

 obovoid, glabrous, 8"-10" long, narrowed 

 below; stigmatic rays 6-10. 



Common in waste and cultivated grounds. 

 Naturalized from Europe. Naturalized or ad- 

 ventive in the eastern United States. Flowers 

 in spring. 



2. ARGEMONE L. 

 Glaucous herbs, with yellow sap, spiny-toothed leaves and large flowers. 

 Sepals 2 or 3. Petals 4-6. Stamens ^. Placentae 4-6, many-ovuled. Style 

 very short. Stigma dilated, 3-6-radiate. Capsule prickly, oblong, dehiscent at 

 the apex by valves. Seeds numerous, cancellate. [Greek, an eye disease, sup- 

 posed to be relieved by the plant so called.] A genus of about 10 species, 

 natives of the warmer parts of America, the following typical. 



