•3S 



PAPAVERACEAE. 



Vol. II 



4. Papaver Argemone L. 



Rough-fruited Popp)'. 



Pale or Long 

 Fig. 1976. 



Papaver Argemone L. Sp. PI. 506. I753- 



Slender, hirsute, or nearly glabrous, i°-2° high, 

 branching. Leaves all but the upper petioled, lanceo- 

 late in outline, pinnately divided, the divisions pin- 

 natifid and toothed; flowers 1-2' broad, pale red, 

 often with a darker center; filaments not dilated; 

 capsule oblong, 8"-io" long, narrowed at the base, 

 bristly-hairy. 



Waste grounds, Philadelphia, and in ballast about the 

 seaports. Fugitive from Europe. Summer. Old name, 

 wind-rose. Headache. 



5. Papaver nudicaule L. Arctic or Iceland 

 Popp}'. Fig. 1977. 



Papaver nudicaule L. Sp. PI. 507. 1753. 



Papaver radicatnm Rottb. ; DC. Prodr. i : 118. 1824. 



Perennial, more or less hirsute. Leaves all 

 basal, pinnately lobed or cleft, the lobes linear- 

 oblong, acute or obtuse ; scape erect, slender, 

 2'-i2' tall, much exceeding the leaves ; flower 

 solitary, i'-3' broad, yellow or red ; filaments 

 filiform ; capsule narrowly obovoid, s"-8" high, 

 about 4" in greatest diameter, densely beset with 

 erect bristly hairs. 



Greenland and Labrador to Alaska and British 

 Columbia. Also in northern Europe and Asia. In- 

 cluded in our first edition, in P, alpinum L. Summer. 



2. ARGEMONE L. Sp. PI. 508. 1753. 



Glaucous herbs, with yellow sap, spiny-toothed leaves and large showy flowers. Sepals 2 

 or 3. Petals 4-6. Stamens =0. Placentae 4-6, many-ovuled. Style very short or none. 

 Stigma dilated, 3-6-radiate. Capsule prickly, oblong, dehiscent at the apex by valves. 

 Seeds numerous, cancellate. [Greek, an eye disease, supposed to be relieved by the plant 

 so called.] 



A genus of about lo species, natives of America. Type species: Argemone mexicana L. 



1. A. mexicana. 



Petals yellow, or rarely cream-colored ; flowers nearly or quite sessile. 

 Petals white, or pinkish. 



Flowers distinctly peduncled ; spines of the sepal-tips nearly erect. 



Flowers sessile or nearly so ; spines of the sepal-tips spreading. 



2. A. alba. 



3, A. intermedia. 



