106 FLORA OF WASHINGTON AND VICINITY. 



t Scutellaria pilosa, Michx. 

 June. 



t Scutellaria integrifolia, L. 

 June. 



t Scutellaria nervosa, Pursh. 



Insane Asylum. Last half of May. 



tBrunella vvilgaris, L. Self-heal. Heal-all, 

 June to August. 



tPhysostegia Virginiana, Benth. False Dragon-head. 

 Rocks, Potomac shore. July, August. 



tMarrubium vulgar e, L. Common Hoarhound. 

 June. 



tLeonurus Cardiaca, L. Common Motherwort. 

 June, July. 



tLamium amplexicaule, L. Dead-Nettle. 

 March, April. 



Stachys palustria, L. Hedge-Nettle. 



Found only on June 26, 1874, in thickets of smilax between Fifteenth and Six- 

 teenth streets, near Boundary, in swampy ground, now drained. 



t Stachys aspera, Michx. \_S. palustris L., var. aspera, Gray.] 

 The common form here. June. 



PLANTAGINACE^. 



Plantain Family. 



Plantago cordata, Lam. 



Sandy shore of the Potomac, opposite Alexandria. First found by Prof. J. H. 

 Comstock, May 1, 1881 ; then in good condition. Roots large, white, divergently 

 branching, and abruptly truncated at the end, from which truncated extremities, 

 and from no other part, proceed bundles of long, white fibers. 



t Plantago »ia;or, L. Common Plantain. 

 June, July. 



Plantago Rugelii, Decsne. 



More common than the last. July. 



t Plantago /awccoZate, L. Ribgrass. Ripplegrass. English Pi^antain. 



A form with compound heads occurs, also a form with white stripes in the loaves. 

 May. 



Plantago Paiagonica, Jacq., var. ariatata, Gray. 



Vacant lot on B street S. W., between Eleventh and Twelfth streets (Dr. Vasey). 



t Plantago Virginica, L. 



Varying immensely in size; specimens found near Ivy City, May 8, 1878, being 

 nearly half a meter in height. First half of May. 



