91 



(1. Lycopodium.) 



clavatum, L. (Club-Moss.) 



Moist woods; McCrone's, &c. Frequent. Jul}', 

 complanatum, L. (Ground Ivy.) 



Abundant on the "Silk farm," and found also near 

 Stanton, J. Webb's; and elsewhere. Sept. 

 2. Selaginella, Beauv. 

 rupestris, Spreng. 



Exposed rocks; Rocky Ridge. Rare. July, 

 a pus, Sjoreug. 



Moist shaded places. Frequent. July. 



Order 115.— HYDROPTERIDES. 138. 



1. ISOETES, L. 



riparia, Engelm. 



Shallow ponds; B. Hoopes. Rare. 

 Engelmanni, Braun. 



Muddy places; Thompson's. Rare. Aug. 



