94 BERBERIDACEAE 



6//_g// t) roa d. In ponds northeast of Lee's Summit and at Little Blue 

 Tank. June- July. 



11. OXYGRAPHIS Bunge. 



Like Ranunculus but achenes longitudinally striate. 



1. O. Cymbalaria (Pursh) Prantl. Glabrous, spreading by runners: 

 leaves cordate, crenate, long-petioled : flowers 1-9, scapose, 3 // -4 // broad. 

 On sand-bars along the Missouri Eiver at Courtney. Also in Clay 

 county, Mo., near Harlem. Usually rare. June- August. 



12. THALICTRUM L. MEADOW RUE. 



Erect perennials with ternately decompound leaves. Flowers greenish- 

 white, dioecious or polygamous. Sepals 4-5. Petals none. Stamens 

 many. Carpels 4-15, longitudinally striate. 



Flowers dioecious, in April-May. 1. T. dioieum. 



Flowers polygamous, in June-July. 2. T. purpurascens. 



1. T. dioieum L. l-2 high : leaflets thin, orbicular, 5-9-lobed. 

 Very abundant on the rocky bluff of the Missouri River northwest of 

 Fairmount Park. 



2. T. purpurascens L. 3-6 high : leaflets thick, oblong, about 3- 

 lobed. Common in meadows and woodlands throughout. 



FAMILY 49. BERBERIDACEAE T. & G. 



Herbs with alternate or basal leaves. Sepals and petals present, 6-9 

 each, imbricated. Stamens hypogynous, opposite the petals or more 

 numerous. Pistil one, superior, few-many-ovuled. 



Flowers in terminal panicles. 1. CAULOPHYLLUM. 



Flowers solitary. 2. PODOPHYLLUM. 



1. CAULOPHYLLUM Michx. 



Leaves decompound. Sepals 6, with 3-4 bractlets at base. Petals 6, 

 small. Stamens 6. Anthers dehiscent by valves. Ovules 2. Fruit 

 berry-like. 



1. C. thalictroides Michx. BLUE COHOSH. l-3 high, glaucous: 

 leaflets 2-3-lobed : flowers greenish-purple. Frequent in rich woods near 

 Sibley. April. , 



2. PODOPHYLLUM L. 



Sepals 6, very fugacious. Petals 6-9, white. Stamens 12-18, their an- 

 thers longitudinally dehiscent. Ovary many-ovuled. Fruit a large 

 berry. 



1. P. peltatum L. MAY APPLE. l-2 high : sterile stems bearing 

 a solitary centrally peltate, orbicular, 7-9-lobed leaf : the fertile bearing 

 two similar, but one-sided leaves, with the nodding flower (2 / broad) in 

 the fork. Very abundant in woods. April-May. 



