66 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



[C. STRAMINEA Willd. The specimen so labeled by J. Macoun is 

 C. hormathodes.] 



C. silicea Olney. Uniformly distributed on the dunes and drier 

 sand flats. J. Macoun; H. St. John, no. 1,164 (H). 

 Fl, Fr. August. 



C. echinata Murr. (C. stellulata Good.) Borders of ponds 

 and wet dune hollows. J. Macoun (C. no. 23,037); H. St. John, no. 

 1,165 (H). 



Fr. July and August. 



C. echinata Murr., var. cephalantha Bailey. Found at the 

 East End, J. Macoun (C. no. 77,162 and 22,065). 

 Fr. July. 



C. canescens L., var. disjuncta Fernald. Common along the 

 pond margins and in the wet dune hollows. J. Macoun (C. nos. 

 23,070 and 23,071); H. St. John, no. 1,166 (H). 



Fr. July to September. 



C. deflexa Horriem. Found only by J. Macoun (C. no. 23,089). 

 Fr. July. 



C. Oederi Retz., var. pumila (Coss. & Germain) Fernald. Wet 

 usually turfy borders of brackish ponds. J. Macoun (C. no. 23,088) ; 

 H. St. John, no. 1,167 (H). 



Fr. July and August. 



ERIOCAULACEAE. 



Eriocaulon septangulare With. (E. articulatum (Huds.) Mor- 

 ong.) Very abundant at the wet margins of the fresh-water ponds. 

 J. Macoun; H. St. John, no. 1,168 (H). 



Fr. August. 



JUNCACEAE. 



Juncus bufonius L. Wet sand near Wallace Lake. Collected 

 by J. Macoun; H. T. Gussow; H. St. John, no. 1,169 (H). 

 FL, Fr. August. 



J. bufonius L., var. halophilus Buchenau & Fernald. Brackish 

 beach of Wallace Lake, H. St. John, no. 1,170 (H). 

 FL, Fr. August. 



