174 



descens in Arkansas, and of this collection there are good speci- 

 mens preserved. Prof. Beck's plants came from St. Louis and, 

 although I have not seen his original specimens, we have a speci- 

 men from the same place collected by Riehl in 1841, and, in addi- 

 tion to this, Mr. Henry Eggert has sent me excellent material from 

 the vicinity of St. Louis collected during the past few years. All 

 these plants, as well as those from the extremities of the known 

 geographic range cited above, agree with each other in essential 

 specific characters. 



5. Trillium lanceolatum Boykin; S. Wats. Proc. Am. Acad. 



14:274. As synonym. 1879. 



Trillium reciirattini var. (?) lanceolatum S. Wats. Proc. Am 

 Acad. 14: 273. 1879. 



Perennial by a rootstock, bright green, glabrous. Stems erect, 

 1-4 cm. long, slender, purplish, smooth ; leaves lanceolate or el- 

 liptic, 7-9 cm. long, acute or acutish, more or less constricted at 

 the base, sessile ; flowers sessile; sepals linear or linear-lanceo- 

 late, 2-2.5 cm. long, acute, green, spreading ; petals clawed, 3-3.5 

 cm. long, the blades linear or linear-oblong, acute, the claws about 

 twice as long as blades ; stamens about y^ as long as the petals ; 

 filaments about as long as the more or less incurved anthers ; 

 berry not seen. 



In moist woodlands and river bottoms, Georgia to Alabama, 

 and Louisiana. (?) April and May. 



The following label accompanying Dr. Boykins' original speci- 

 men may be of interest: " Jrillium lanceolatum. This is cer- 

 tainly a new species of sessile Trillium. It grows universally in 

 stiff" clayey river bottoms. Flowers March and April. The fruit 

 is more beUied than S. Trillium, and deep grooving formed by the 

 stamina, rendering it hexagonal. Stamina incurved." 



6. Trillium recurvatum Beck, Am. Journ. Sci. 11 : 178, 1826. 



Trillium unguiculatum Nutt. Trans. Am. Philos. Soc. (If,) 5: 

 154. 1837. 



Perennial by a short horizontal rootstock, light green, gla- 

 brous. Stems solitary, or several together, i-4dm. tall, smooth, 

 usually slender ; leaves petioled, the blades ovate-lanceolate, oval or 

 suborbicular, obtuse or acute, 5-9 cm. long, rounded or sub-cor- 

 date at the base or rarely attenuate, often mottled ; petioles 

 winged, several times shorter than the blades ; flowers sessile, pur- 



