204 IOWA ACADEMY OF SCIENCE Vol. XXVI, 1919 



■ hey bought their nursery in 1891 and that they sold the common and 

 purple leaved barberry from that time up to the spring of 1918. 



Mr. C. F. Gardner of Osage, Iowa, writes to me under date of 

 December 16th as follows. "The first common barberry that 1 

 planted in Iowa was long before I issued a catalogue. I think it was 

 in the spring of 1866. I grew a few thousand each year from the 

 seed and sold the plants generally in small lots to parties who wanted 

 to grow berries for the sake of mixing them with apples to make a 

 kind of sauce which was in great favor with people from the New 

 England states. It was generally planted in hills of single plant, 

 or in a short hedge-row. About 1880, as near as I can figure, we 

 raised probably about twenty thousand plants, which were sold 

 to our customers. The greater number of plants that we sold were 

 for hedges. Finally about the year 1895 the sales of the plants ran 

 so low that we discontinued planting them entirely. And we, there- 

 after, might have bought a few plants to fill a few orders. This was 

 also about the time we commenced growing the Japanese (Thun- 

 hcrgii). 



CAN THE AGE OP THE BARBERRY BE DETERMINED BY THE 



ANNUAL RINGS? 



I thought it might be possible to determine the age of the barberry 

 by making cross sections of the stem. 



DIAMETER OF 

 LOCALITY BRANCH IN INCHES ANNUAL RIXCS 



Humboldt, Warner : % 8 



Humboldt, Warner i^ 3 



Humboldt, Warner l-Va 1.5 



Humboldt, Warner i^ 8 



Humboldt, Warner '. 1 14 



Humboldt, Warner l-i/4 12 



Garner, Hedden 2-V^ 15 



McGregor, Chapln 2-i/^ 17 



McGregor, Chapln 3-% 20 



McGregor, Chapln 1-% 25 



McGregor, Guttheil ; 1-% 16 



LeClaire, Johnson .-. % 6 



LeClaire, Johnson i^ 5 



Des Moines, State House % 9 



Des Moines, State House 1-% 15 



Des Moines, State House 1-1/4 10 



Des Moines, State House 1-% 13 



Des Moines, State House I-14 13 



