117 
1014. T. erectum, L. Birth-root. Bath-flower. 
Rich and open woods; infrequent. May — June 25th. 
1015. T. g’randiflorum, Salisb. Large White Trillium. 
Rich woods and banks; common northward; less frequent south. 
May. 
An abnormal form with three typical and one shorter petal, about J 
the size of the others, was collected at Winnetka. 
A double-flowered form has been observed in the ravines near Glen- 
coe; specimens with stalked sepals are not uncommon. 
1016. T. cernuum, L. Nodding Trillium. 
Moist rich woods and swamps; infrequent and scattered. May — 
June. (B.) 
TOFIELDIA, Hudson. 
1017. T. gflutinosa, Willd. False Asphodel. 
) Moist places. June — July. 
From Hyde Park south and southeast; not common, except at Pine 
Station, Miller’s and Edgemoor, Ind. Banks of the Desplaines 
river near Maywood ; rare. 
P0NTEDEHIACE2E. 
PONTEDERIA, L. 
1018. P. cordata, L. Pickerel-weed. 
Aquatic and low swamps; frequent, or common locally. July — 
September 15th. 
HETERANTHERA, Ruiz & Pav. 
1019. H. graminea, Vahl. Water Star-grass. 
Schollera graminifolia , Willd. 
Aquatic; frequent in the streams and ponds of the southeast, rare 
elsewhere. July 20th — August. (B.) 
XYE.IDACE-3E. 
XYRIS, Gronov. 
1020. X. flexuosa, Muhl. Yellow-eyed Grass. 
Wet sandy swamps and bogs, from Sheffield, Ind., southward. 
July — August. 
COMMELXNACEiE, 
COMMELINA, Dill. 
1021. C. virginiea, L. Day-flower. 
Sandy hills at Miller’s, Ind., Babcock ! 
Babcock reports it “abundant” in this locality. We do not find it 
so at the present time. 
