OF ARTS AND SCIENCES- 5 



ramosum (Roth.) Aschers. Less rare 



obliquum Muhl. Common 



" var. dissectum (Spreng.) Clute, Common 

 ternatum (Thunb.) Sw., var. intermedium 



D. C. Eaton. Not common 



virginiaiium (L.) Sw. Common 



Equisetaceje 



Equisetum arvense L. Common 



sylvaticum L. Common 



palustre L. Manchester. (F. W. B.) Rare 



fluviatile L. Not rare 



hyemale L., var. affine (Engelm.) A.A.Eaton. Common 



Lycopodiacese 



Lycopodium lucidulum Michx. Common 



inundatum L. Not rare 



nil not iimm L. Common northward 



clavatum L. Common 



" var. monostachyon Grev. and Hook. 



Sandwich. Rare? 



obscurum L. Common 



" var. dendroideum (Michx.) D. C. Eaton. 



Common 



complanatum L. Common 



" var. flabelliforme Fernald. Common 



tristacliyum Pursh. Common 



Selaginellaceae 



Selagiuella rupestris (L.) Spring. Common 



apus (L.) Spring. Hudson. Rare? 



