102 



from Farmington (H. W. Jewell), and the variety cam- 

 bricum Willd. from Mount Desert Island (Miss E. S. 

 Shaw). 



EQUISETACE^E. 



Equisetum arvense L. Field Horsetail. Common 

 in numerous forms. 



Equisetum pratense Ehrh. In the valley of the Ken- 

 nebec and rather abundant along the St. John in north- 

 ern Maine. 



Equisetum sylvaticum L. Wood Horsetail. Com- 

 mon. 



Equisetum palustre L. Livermore Falls, Androscog- 

 gin Co. (C. H. Knowlton). Abundant on the shores of 

 the St. John, Aroostook Co. 



Equisetum fluviatilc L. Water Horsetail. Common 

 throughout. 



Equisetum littorale Kuehlw. Collected in one or more 

 of its many forms at several stations in the valley of 

 the Penobscot and in Aroostook Co., especially along 

 the northern border of the State. (M. L. Fernald, O. 

 W. Knight). 



Equisetum hycmale L. Common Scouring Rush. 

 Rather common in the southern section. 



Equisetum rariegatum Schleich. Kennebec River at 

 Skowhegan and common along the St. John. 



Equisetum scirpoides Michx. Quite generally dis- 

 tributed in the State and abundant in the extreme north. 



LYCOPODIACE.E. 



Lycopodium selago L. Fir Club-Moss. On moun- 

 tains. Mt. Katahdin (M. L. Fernald), Mt. Desert (Rand 

 & Redfield, Fl., Mt. Desert), Mt. Bigelow. 



Lycopodium lucidulum Michx. Shining Club-Moss. 

 Frequent throughout. 



