BULLETIN 
TORREY BOTANICAL CLUB. 
Studies in the Botany of the Southeastern United States.—IX, 
By Joun K. SMALL. 
1. THE SESSILE-FLOWERED TRILLIA OF THE SOUTH- 
ERN STATES.* 
In the spring of 1896, Professor Underwood and the writer in- 
dependently became interested ina species of 77i//ium native in the 
southern Atlantic and the Gulf States.f Professor Underwood 
collected his material in Alabama, while I received specimens col- 
lected in western North Carolina, by my friend Mr. A. M. Huger. 
The plant in question, judging both from descriptions and 
specimens preserved in our larger herbaria, has without exception 
been included in 77/ium sessile. As 1 shall show, this is an error, 
and was committed by Linnaeus himself and both general bot- 
anists, and monographers of this group have apparently followed 
his disposition of the plants to the present time. 
Without doubt the original 7i//ium sessile of Linnaeus} was 
a composite species, for after his description, “ Trillium flora ses- 
sile erecto,” he quotes descriptions from the three authors, Grono- 
vius, Plukenet and Catesby, as follows: 
* This study has been furthered by the loan of material from the herbaria of an 
Harvard University and the United States Department of Agriculture. eae 
+ After extensive field observations during the spring and summer, Professor Vee 
derwood read a paper on the sessile 7ri//ia before Section G of the American Associ 
ation for the Advancement of Science at its last meeting. | He expected to finish and os 
‘Publish the results of the study, but, being presed for time, requested the writer to 
complete the work already well advanced. _ Wea a 
a nee th ee 
