I 2 ENGELMAXNIA PINNATIFIDA, CUT-LEAVED ENGELMANN FLOWER. 



he is esteemed by the botanical world as its leading authority on 

 American Oaks, Coniferous trees, Agaves, Yucca, Cuscuta, Juncus 

 or the Rushes, Cactacese and many others. He is not a native 

 of this country, but was born at Frankfort-on-the-Main, on the 

 2d of February, 1809, so that he is now in his seventieth year, 

 and is still actively engaged in his favorite study. He pub- 

 lished his first botanical work in Germany; came to the United 

 States in 1832, when but twenty years of age; and, two years later, 

 settled in St. Louis, where he has ever since remained. No 

 American botanist is more esteemed for his many virtues as well 

 as for his work than Dr. Encrelmann, and we are elad that he 

 will be ever remembered in connection with this pretty fiower. 



Nuttall, who collected this plant, thought it was a species of 

 SilpJiiiLin. No other species but the one we figure has been 

 found, though a marked variety is noted in the account of Lind- 

 heimer's Texan plants. Dr. Torrey in the Annals of the New 

 York Lyccnni, published in 1820, notices the species as having 

 been collected by Dr. James on the Canadian river. Nuttall 

 and Dr. Leavenworth are credited with collecting it on the Red 

 river, in Arkansas; Drummond found it in Texas; and Marcy's 

 expedition in the Witchita mountains. 



For the opportunity of making our drawing we are indebted 

 to the Bussey Institution, where it was growing under the care 

 of Mr. Jackson Dawson, of the Arnold arboretum. 



Explanations of the Plate.— See text. 



