PAPAVEEACEAE 95 



Family 50. MENISPERMACEAE DC. 

 Climbing herbs with alternate non-stipulate leaves and dioecious, pan- 

 icled flowers. Sepals 4-12. Petals 6 or none. Stamens 6-24. Carpels 

 3-many, ]-ovuled. Fruit a drupe. 



1. MBNISPERMUM L. 



Sepals 4-8 in two series. Petals 6-8. Stamens 12-24. Pistils 2-4. 

 Drupe globular. 



1. M. Canadense L. Moonsbkd. Leaves peltate near the base, cor- 

 date, 3-7-lobed or entire above : flowers greenish- white. — Common in 

 thickets. May-June. ' 



Family 51. PAPAVEEACEAE B. Juss. 

 Herbs with alternate non-stipulate leaves. Flowers regular or irregu- 

 lar. Sepals 2, fugacious. Petals 4-12. Stamens few-many, hypogynous. 

 Ovary 1, 1-oelled, few-many-ovuled. 



Flowers regular. 



Leaves spiny toothed. 1. Akgbmone. 



Leaves not spiny toothed. 2. Sanguinakia. 

 Flowers irregular. 



Flowers white. 3. Bikukulla. 



Flowers yellow. 4. Capnoides. 



1. ARGEMONE L. Prickly Poppy. 

 Petals 4-6. Stamens numerous. Stigmas 3-6, radiate. Capsule prickly, 

 dehiscent by 3-6 valves at the apex. 



Flowers yellow. 1. A. Mexicana. 



Flowers white. 2. A. intermedia. 



1. A. Mexicana L. l°-2° high, with sessile, oblong, pinnatifid and 

 prickly, white-spotted leaves: flowers sessile, yellow. — Waste places in 

 Independence. Eare. July- August. 



2. A. intermedia Sweet. Like the last but leaves not blotched: 

 flowers peduncled, white, I'-S' broad. — Streets of Kansas City and In- 

 dependence. Bare. July-August. 



2. SANGTJINARIA L. 



Eootstock red, bearing petioled, reniform, lobed leaves and one-flowered 

 scapes. Petals 8-12. Stamens numerous. Capsule oblong, 1-celled, 2- 

 valved. 



1. S. Canadensis L. Bloodeoot. 4'-8' high, glabrous and glaucous. 

 — Frequent in rooky bluff woods along the Missouri Eiver. April. 



3. BIKUKULLA Adans. 

 Low herbs with ternately decompound and dissected leaves and irregular 

 racemose flowers. Sepals two, minute. Petals four, in two pairs, the 



