68 FLORA OF WASHINGTON AND VICINITY. 



Polygala Curtissii, Gray. Curtiss's Milkwort. 



Near Alexandria (A. H. Ciirtiss), (1869?). Not yet rediscovered. Forms that were 

 supposed to be varieties of it are now referred to P. fastigiata, Nutt. 



t Polygala ambigua, Nutt. 



Rare. Only one specimen found; near Mount Pisgah Church, Maryland, Octo- 

 ber 12, 1879. 



Polygala polygama, Walt. 



Sandy Landing, on both sides of the river. Third week in June. 

 tPolygala Senega, L. Seneca Snakeroot. 



First half of June. 



CARYOPHYLLACEiB. 



Pink Family. 



tDianthus Armeria, L. Deptford Pink. 



June. Autumnal flowers observed October 9, 1881. 



tSaponaria officinalis, L. Soapwort. Bouncing Bet. 

 June and July. 



tSilene stellata. Ait. Starry Campion. 



August. 



Silene nivea, DC. Snowy Campion. 

 High Island. First week in June. 



t Silene Pennsylvanica, Michx. Wild Pink. 

 April. 



Silene Armeria, L. Sweet- William Catchfly. 



Near Giesboro'. A few specimens found June 2, 1878. Locality exhausted. 



t Silene antirrhina, Ij. Sleepy Catchfly. 



Fields. Middle of May. 

 tLychnis Githago, Lam. Corn Cockle. 



Last week in May. 



tCerastium viscosum, L. [C. vulgatum, Gray's Manual.] Mouse-ear Chickweed. 

 A form with leaves 17""" wide and 2.5™™ long, or nearly orbicular, was found by 

 Professor Chickering at Cabin John Run in May, 1875. March to May. 



tCerastium vulgatum, L. [C. viscosum, Gray's Manual.] Larger Mouse-ear 

 Chickweed. 

 April. 



f Cerastium nutans, Raf. Clammy Chickweed. 

 i'irst week in May. 



t Cerastium oblongifolium, Torr. 

 April. 



♦ Stellaria media, Smith. Common Chickweed. 

 February to May. 



