24 THE AMERICAN BOTANIST 



Viola Slicltonii, yellow on the inside of the flower and 

 brown on the outside; sometimes the brown is lacking. 



Linaria vulgaris, yellow and orange. 



Doivningia clcgans, besides the usual blue, white and yel- 

 low^ there is a pink form wherein the blue is replaced by pink. 



Madia elegans, strap-shaped corollas yellow witli brown 

 or red spot at base. 



Gaillardia aristata, same as above. 



Flowers Changing Color 



Lilium icashingtuiiianiini, white becoming pink. 

 Cynoglossuin grandc, pink fading to blue. 

 Mertensia paniculata, blue fading to pink. 



PERPETUATING OUR NATIVE FLORA 



By F. W. VonOven 



IN the i)ast the perpetuation of our native flora has been 

 largelv in the direction of stimulating an interest in the 

 plants themselves. Many landscape architects and gardeners 

 in working out their designs for planting have adhered strict- 

 ly to the use of American species and varieties, but this is not 

 sufficient. We need a more intelligent interest in plants of 

 superior (jualities such as may be found in various parts of our 

 country. Plant lovers often have such supericjr plants in their 

 gardens, l)ut the valuable points of such specimens will never 

 become known unless the owners co-operate with the nursery 

 men in multiplying and perpetuating them. 



The United States has for years been largely depend- 

 ent upon foreign countries for its supply of )-(>ung plants. 

 We are still budding most of our a[)ples on French crab and 

 <>nl\- in recent vears has the American apple seedling come 

 intd u:>e. We are budding our cherries on Mahaleb, ma/.ard 

 and inorella .si( .ck of Iuu-"pean urigin and most of our pears 



