175 



pie ; sepals lanceolate, 2-3 cm. long, acute, finally deflexed ; petals 

 clawed, the blades ovate, obovate or elliptic, usually acute, about 

 twice longer than the claws ; stamens hardly ^ as long as the 

 petals ; filaments about /^ or ^ as long as the more or less in- 

 curved anthers ; berry not seen. 



In woods, Ohio to Minnesota, south to Mississippi and Arkan- 



as. April and May. 



2. NOTES ON CRITICAL SPECIES. 



Iris verna L. Sp. PI. 39. 1753. 



I have seen two collections of the spring Iris during the past 

 season, both from North Carolina; the one was made by Mr. A. 

 M. Huger in the mountains and the other by myself in the central 

 part of the State. I find that two of its striking features have not 

 been recorded : first, the remarkable elongation of the leaves, which 

 often reach a length of 3-4 decimeters, and second, the odor of 

 the flowers, which almost exactly imitates the fragrance of sweet 

 violets. 



Anemone trifolia L. Sp. PI. 540. 1753. 

 While walking along a small stream just west of the Falls of 

 the Yadkin river, last spring I was astonished to find fine plants 

 of Anemone trifolia. The species has only been known to exist in 

 America on the higher parts of the Alleghanies, chiefly in the 

 Southern States, but here, in the central part of North Carolina at 

 an elevation of only 200-300 feet above the level of the sea, the 

 species appears as typical as anywhere. 



Cardamine parviflora L. Sp. PI. Ed. 2, 914. 1763. 

 Virginia seems to have been the southern recorded limit for 

 this species but now Mr. A. M, Huger sends us good specimens 

 from the mountains of Polk County, North Carolina. 



Diamorpha pusilla Nutt. Gen. i : 293. 181 8. 

 The geographic range of this curious plant is gradually ex- 

 panding. I have recently found the species at various points in 

 northern Georgia and in i894and 1895 met with it on Dunn's Moun- 

 tain in Rowan County, North Carolina. The outlying stations of 

 its distribution as we have it represented by specimens are : 



