TENNESSEE FLORA. 25 



B. alba Gray. Frequently cultivated and escaping. May. 



B. nigra Koch. Escaped. 



B. I'anipestl'is. Cultivated and escaping into waste grounds. 



Draba bracbycarpa Nutt. Cedar glades of Middle Tenn 

 March. 



D. Cai'oliniaiia Walt. Sterile rocky lands. O. S. March- 

 April. 



Draba ramosissima Desv. Mountains of East Tenn. Mundic 

 bluff on Ocoe river. Polk Co. April-May. 



Vesicaria Shortii Torr & Gray. Rising Sun bluff, 14 miles 

 below Nashville. April. 



Alyssuni Lescurii Gray. Hills south and west of Nashville, 

 covering the ground in great patches, visible miles distant. 

 April-May. 



Sisymbrium officinale Scop. Ditches and roadsides, every- 

 where. May- June. 



Thlaspi arvense L. Common weed. March- June. 



Hesperis matroualis L. Introduced. Alongside a fence in 

 Mrs. Cheatham's gardens, Nashville. May. 



Lepidium Virgiuicum L. O. S., along roadsides. May-July. 



Senebiera Coronopus L. Vacant town lots, Memphis. Dr. 

 O. Egeling. 



Rapbauus sativus L. Escapes sometimes into open fields. 



CAPPARIDACE.E. 



Cleome pungens Willd. Scattered O. S. Abundant in low 

 woodlands along Tennessee river near Chattanooga. June-July. 



Polanisia c/raveolens Raf. Along P. P. in Dixon Co., Middle, 

 Tenn. Also West Tenn. July. 



CISTACE.E. 



Helianthemum Canadense Michx. Bradley Co., East Tenn. 

 near Charleston. April-May. 



Lecliea major Michx. O. S. July-August. 

 \j. minor Walter. Barrens of Middle Tenn. and mountains 

 of East Tenn. July-August. 



L. tenuifolia Michx. Cumberland and Alleghany Mts. July- 

 Ausfust. 



