8 FLORA OF WORCESTER COUNTY. 



obscurum L. 



Worcester. Mrs. Ella L. Horr. 

 obscurum L., var. dendroideum Michx. 



In moist woods, common 

 complanatum L., var. flabbelliforme Fernald. Ground 



Pine. Mrs. Ella L. Horr. Common, 



tristachyum Pursh. 



Leicester. Mr. George Coult. 



SELAGINELLACE^E. 



Selaginella Bcauv. 



rupestris (L.) Spring. 



Worcester. Mr. G. T. Rignel. 

 apus (L.) Spring. 

 Southbridge. Mr. L. E. Ammidown. 



ISOETACE^: (QUILL WORT FAMILY). 



Isoetes L. Quillwort. 



echinospora Dur., var. Braunii (Dur.) Engelm. 

 Prof. G. E. Stone. 



