Vol. 26 



No. 12 



BULLETIN 



OF THE 



TORREY BOTANICAL CLUB 



\ 



DKCEMBER 1899 



Studies in Sisyrinchium— VI : Additional new Species from the 



Southern States 



1>V EUGENI. r. BiCKNELI. 



J 



In the South Atlantic and Gulf States the genus Sisyrinchium 

 has expressed itself with marked emphasis. Although not 

 hitherto regarded as forming more than a very insignificant feature 

 of the southern flora the group actually embraces such a number 

 of species that it must take rank among the largest homogeneous 

 genera of the south. These numerous species in their general 

 near relation yet perfect distinctness call to mind especially the 

 interesting brotherhood of species in Eupanicum among the grasses. 



Since the publication of the first paper of this series describing 

 some of these plants, additional material from the South has been 

 received which reveals a further considerable number of species 

 not hitherto suspected to exist. These come to light mainly 

 through the important collection of the Biltmore Herbarium, 

 kindly placed at my disposal by Mr. C. D. Beadle, and through an 

 interesting scries of specimens from the South Atlantic States for- 

 warded by Mr. W. W. Ashe. 



Including the new species here described the total number now 

 known to me from the region south of Washington, D. C, and 

 east of the Mississippi is thirty-four. I have no reason to doubt the 

 perfect validity of any one of these, but, 'on the contrary, am well 

 satisfied tliat certain of them, as S, Caroliniamim and 5. Atlanticjwt^ 

 are still aggregates and that the number of species from the South- 

 ern States will yet be materially augmented. 



[Issued Dec. 22.]' " ( 605 ) 



