476 1 Ranunculaceae Jeffersonia 



is short-elliptic or suborbicular, light yellow, rarely 5.5 cm long and not 

 poisonous, as some people think. I am very fond of them and have eaten 

 them in quantity to determine whether any ill effect resulted from eating 



them. 



In 1927 1 found a specimen that had a maroon colored fruit in a woods 

 on the Arthur Miller farm near Mauckport, Harrison County. I did not 

 preserve the fruit but I moved the plant to our garden where it multi- 

 plied and in 1937 I succeeded in maturing four large fruits. These 1 

 sent to Dr. Edgar Anderson, of the Missouri Botanical Garden, for study. 



la. Podophyllum peltatum f. aphyllum Plitt. (Rhodora 33: 229. 1931.) 

 This is a form in which the flower terminates a scape without a trace 

 of leaves, the scape arising from the apex of the rhizome. I have a speci- 

 men from Wells County and a second one grew about half a foot from the 

 one I have. 



2559. JEFFERSONIA B. S. Barton 



1. Jeffersonia diphylla (L.) Pers. TwiNLEAF. Map 980. Infrequent 

 to frequent throughout the area shown on the map. Generally found in 

 rich soil on wooded slopes and more common in the southern counties. 

 Margins of leaflets vary from entire and undulating to 5-7-lobed. 



N. Y. to Wis., southw. to Va., Tenn., and Iowa. 



2565. CAULOPHYLLUM Michx. 



1. Caulophyllum thalictroides (L.) Michx. Blue Cohosh. Map 981. 

 Infrequent to frequent throughout the state in moist, rich woods. Since 

 the thickened rootstocks have always been much used in medicine, it is 

 surprising to find it as frequent as it is. 



N. B. to Man., southw. to S. C, Tenn., and Mo. 



2566. BERBERIS [Tourn.] L. Barberry 



Leaves entire; spines generally simple; flowers in fascicles of 2-6; petals notched. 



1. B. Thunbergii. 



Leaves not entire, the margins more or less serrate; spines generally 3-pronged. 



Margins of leaves regularly bristly-serrate; racemes many-flowered; petals entire; 



two year old branchlets grayish 2. B. vulgaris. 



Margins of leaves irregularly serrate, the teeth not bristly-pointed; racemes few- 

 flowered; petals notched; two year old branchlets reddish brown 



3. B. canadensis. 



1. Berberis Thunbergii DC. Japanese Barberry. This shrub is 

 much used as a hedge plant and for ornamental planting. Nieuwland re- 

 ports it as an escape in St. Joseph County and I have found seedlings in 

 our garden on several occasions. Since it is so commonly used, it will 

 no doubt be found often as an escape where suitable conditions obtain. 



Nat. of Japan. 



2. Berberis vulgaris L. European Barberry. This species was 

 formerly much used as an ornamental shrub. When it was learned that 



