1 8 THE PLANT WORLD. 



three plants near Boulder with flowers distinctly pink and 

 no suggestion of purple. 



Glycyrrhiza lepidota Nutt. This well-known species is 

 described in all the manuals as having flowers which are 

 yellowish-white. At various points, especially a few miles 

 north of Boulder and also near Red Mountain in Larimer 

 County, Colo., the flowers are regularly bluish-purple. In 

 fact there are so many specimens with the bluish flowers that 

 I have hesitated to include this in my list. The color has 

 doubtless been noticed by many observers and has perhaps 

 been recorded but I have not seen any mention of it. 



Achillaea lamilosa Nutt. This very common plant of 

 the plains and mountain regions seldom shows the purplish 

 color in the ray flowers often noted in the eastern A. milli- 

 folium. In fact I have never seen until this season any heads 

 with this color variation. A number of plants with purple 

 rays were seen at Ward, Boulder County. My colleague. 

 Professor T. D. A. Cockerell tells me that this variant is 

 sometimes seen in New Mexico. 



Sedtim stenopetahim Pursh. Here is another very com- 

 mon species found everywhere in the foothill districts. The 

 flowers are described as "yellow" or "bright yellow" in all 

 the manuals. During the past summer I noticed about half- 

 a-dozen plants in which the veins of the petals were bright 

 red and the tips and margins were also bright red. This 

 gave the flower clusters a most unusual and striking appear- 

 ance. — University of Colorado, Boulder, Colo. 



A COSTLY BULB. 



In the early part of the seventeenth century the cultiva- 

 tion of the tulip was the chief occupation and delight of the 

 Dutch florists. This oriental flower had but recently made 

 its appearance in Holland, and the beauty and novelty of 

 the tulips raised by the Hollanders soon attracted the admira- 

 tion of all Europe, for no people as a nation are fonder of 

 flowers or take greater pleasure in their culture than the 



