1898.] NATURAL SCIENCES OF PHILADELPHIA. 17 



There are two species of Festuca upon which we cannot give any 

 definite opinion ; might they not be referred to Prof. Scribner at 

 Washington ? 



The alga (Egregia Menziesii) was identified by Dr. Farlow. 



Various other points will be apparent to you from the list. Pos- 

 sibly you will be able to identify still more of the plants (as now 

 named) with the descriptions of Pursh's Flora. 



I wish once more to express my gratitude to you for the great 

 privilege of examining this remarkably valuable and interesting 

 collection. The plants, carefully packed, are today returned." 



The work by Messrs Robinson and Greenman is so carefully and 

 thoroughly done, that I have used their manuscript. I have added 

 by way of notes, such matters as may not have been covered by the 

 work of these good friends. 



LEWIS AND CLARK PLANTS AS DETERMINED BY B. L. ROBINSON 



AND J. M. GREENMAN AT THE HERBARIUM OF HARVARD 



UNIVERSITY, OCTOBER, 1897. 



Present name of plant, followed Treatment of plant in Pursh's 

 by data on accompanying labels. Flora, whenever specifically men- 

 Bracketed notes added during tioned. Bracketed notes added 

 identification. during identification. 



Anemone Canadensis L. 



(A. Pennsylvania L.). Prai- 

 ries ; in the camp near the old 

 Maha village, August 17, 1804. 1 



Anemone quinquefolia L. 



On the waters of the Koos- 

 kooskee, June 15, 1806. [Flow- 

 ering stem with involucre]. 



Clematis Douglasii Hook. [_ w j t h sca rcely a doubt C. Mr- 



[No label ; a single flower, but sutissima Pursh, Fl. 385, being 



well identifiable]. the only species ascribed to 



Lewis' herbarium]. On the plains 

 of the Columbia River. % . May, 

 v. s. in Herb. Lewis. 



1 Pursh describes Anemone tenella Fl., 386, " from the banks of the Missouri, 

 Mr. Lewis, — May." A tenella is regarded by Hooker as synonymous with A. 

 dichotoma L., which Dr. Robhison refers to A. Canadensis L. A. dichotoma 

 is not noted in the Flora as being from " Lewis." It is possible this speci- 

 men is the type of his tenella. 



