Tenmessee Flora. 55 



COMMELINACE^ Reichenb. 

 COMMELINA L. 



Commelina nudiflora L. Day flower. Alluvial banks. O. 

 S. July, August. 



C. hirtella Vahl. Shaded bluffs, Nashville. August-Octo- 

 ber. 



C, Virginica L. Copses. O. S. 



C. Virginica angustifolia Michx. Cedar glades of M. Tenn. 

 July, August. 



TRADESCANTIA L. 



Tradescantia Virginiana L. Spiderwort. Rich woodlands^ 

 O. S. May. 



T. montana Schutthv. Wolf Creek, Cocke County, E. Tenn. 

 T. H. Kearney. June, July. 



T. brevicaulis Raf. Bluffs on Mill Creek, Nashville. June. 



PONTEDERIACE.E Dumort. 



PONTEDERIA L. 



Pontederia cordata L. Pickerel weed. Wild Goose Pond, 

 near Mitchellville, Robertson County. June-October. 



HETERANTHERA R. & P. 



Heteranthera uniformis R. & P. Mud plantain. Ditches 

 and ponds. O. S. August. 



H. limosa (Sw.) Willd. With the former. O. S. Ponds 

 near Nashville. August. 



H. dubia (Jacq.) MacM. Schollera graminifolia A. Gray. 

 Water star grass. E. and W. Tenn. 



JUNCACE.^ Vent. 

 JUNCUS L. 



Juncus effusus L. Common rush. In swamps and moist 

 places. O. S. June-September. 



J. bufonius L. Toad rush. In clayey soil. July-October. 



J. tenuis Wilid. Roadsides in damp soil ; very common. 

 O. S. June. 



J. secundus Beauv. J. tenuis var. secundus Engelm. E. 

 Tenn. Oakland Station, Robertson County. 



J. setaceus Rostk. Along streams. O. S. June, July. 



J. repens Michx. Miry places in the barrens of M. Tenn. 

 Tullahoma. June-August. 



J. marginatus Rostk. Mts. of E. Tenn. and in the oak bar- 

 rens of M. Tenn. June. 



