34 THE AMERICAN BOTANIST 



One of the objects of the observations on common names ap- 

 pcariiiij;^ in this magazine, is the bringing to light of these ad- 

 ditional names. — Ed.] 



FivOWERiNG Habit of Tamarix. — What are the flower- 

 ins: habits of the tamarix? I have noticed that two bushes of 

 T. gallica on the campus have flowered twice during the sea- 

 son the last two years. I am wondering if this is a regular 

 habit of the plant since a brief survey of available literature 

 seems to throw no light on the subject. Last year I did not 

 make a note of the date of the first appearance of flowers but 

 remember that the plants were in full flower on June 19. 

 When they flowered later in the summer I recorded the date 

 — August 4. This year I have June 14 as the first of the 

 summer period, and August 5 as the second. The weather 

 has been quite different during the late summer of the two 

 years, warm and very dry last year, considerable cool and rainy 

 weather this year. As to the amount of flowers I cannot say, 

 probably not so many in the second period but hardly a great 

 difference. — O. A. Stevens. [A tamarix received from Si- 

 beria through the United States Plant Introduction Bureau 

 under the name of Tamarix pentandra has bloomed twice a 

 year for several years in our grounds ; in fact it appears to 

 bloom fairly continuously through the summer, though not 

 as profusely as at the beginning of its flowering season. It 

 may be added here that in the valley of the Rio Grande in 

 New Mexico, the Tamarix is commonly used as a shade tree 

 often reaching a height of 30 or 40 feet and blooming pro- 

 fusely as late as August. This species is T. gallica. — Editor.] 



Amphichromy again. — The interesting note in the 

 American Botanist for November, 1923, about four-o'clocks 

 with flowers of two separate colors on the same plant, calls 

 to my mind a case of amphichromy (thanks for the word, it is 



