144 



PAPAVERACEAE. 



1. Argemone mexicana 



L. MEXICAN OR PRICKLY 

 POPPY. STINGING THISTLE. 

 QUEEN THISTLE. (Fig. 166.) 

 Stem 1-2J high, spiny or 

 sometimes nearly unarmed. 

 Leaves sessile, clasping by 

 a narrowed base, 4'-10' long, 

 glaucous, runcinate-pinnati- 

 fid, spiny-toothed and more 

 or less spiny on the veins; 

 flowers orange or yellow, 

 sessile or subsessile, l'-3' 

 broad; sepals acuminate, 

 bristly-pointed; capsule 1' 

 long or more; stigma sessile. 



Common in waste and 

 cultivated grounds. Natural- 

 ized from tropical America. 

 Naturalized in the south- 

 eastern United States and 

 West Indies. Flowers nearly 

 throughout the year. 



Eschscholtzia californica Cham., ESCHSCHOLTZIA, CALIFORNIA POPPY, of 

 the western United States, grown in flower-gardens, is a glabrous and glaucous 

 branching perennial, usually cultivated as an annual, with alternate, finely 

 dissected leaves 2'-4' long, their ultimate segments nearly linear, and peduncled, 

 bright yellow or orange flowers 2 '-3' broad, with 4 broad petals, a hooded 

 calyx of 2 sepals, and numerous stamens, the fruit a linear ribbed capsule 

 about 3' long. 



Hunnemannia fumariaefolia Sweet, GIANT YELLOW TULIP POPPY, Mexi- 

 can, grown at Cedar Lodge in 1914, resembles the CALIFORNIA POPPY, but has 

 larger ternately dissected leaves with broader segments ; its bright yellow 

 flowers have 2 separate sepals, 4 broad petals and numerous stamens ; the fruit 

 is a linear, ribbed capsule. 



Family 2. FUMABIACEAE DC. 



FUMITORY FAMILY. 



Annual, biennial or perennial herbs with a watery sap. Leaves 

 alternate, often all basal, compound, usually dissected, very delicate. 

 Flowers perfect, irregular, in racemes, panicles or cymes. Calyx of 2 

 scale-like sepals. Corolla of 4 petals, the outer (lateral) spreading above, 

 one or both saccate or spurred at the base, the inner smaller, thickened 

 at the tips. Stamens 6; filaments diadelphous; anthers, various, middle 

 one 2-celled, lateral 1-celled. Gynoecium of 2 carpels united into a single 

 pistil. Ovary 1-celled, with 2 parietal placentae; stigma flattened con- 

 trary to the placentae, 2-lobed or 2-horned. Ovules numerous or rarely 

 solitary. Fruit a silique-like capsule or, in the following genus, inde- 

 hiscent. Seeds with a minute embryo in fleshy endosperm. Five genera 

 and about 150 species, mostly in temperate regions. 



