-59- 



SCLERATHUS L. 



S. annuus L. Knawel 



Occasional; disturbed areas. Ahles 77611 [MASS]. 



SILENE L. 



S. antirrhina L. Sleepy Catchfly 



Occasional; fields and open areas. Harris 12076 [NEBC] . 



S. cucubalus Wibel Bladder Campion 



Common; field adjacent to Subheadquarters. MJM 499 . 



S. dichotoma Ehrh. Forking Catchfly 



Occasional; in field on Cross Farm Hill. MJM 469 . 



SPERGULARIA J. and C. Presl 



S. canadensis (Pers.) Don 



Occasional; salt marsh north of Stage Island and marsh 

 east of Grape Island. MJM 502 , 1269 . 



S. marina (L.) Griseb. 



var . marina 



Frequent; upper edges of salt marsh. MJM 1189 . 



var. leiosperma (Kindb.) Gurke 



Occasional; upper edges of salt marsh and gravelly 

 shores. MJM 831, 1242, 1354 . 



S. rubra (L.) J. and C. Presl. Sand-Spurrey 



Common; disturbed areas, parking lots, and along dike 

 surrounding North and South Pools. MJM 507, 785, 1168. 



