Fig. 101. <i><b>Lycopodium lucidulum</b></i> from the second edition of <i><a href="//commons.wikimedia.org/wiki/Britton_%26_Brown,_Illustrated_Flora,_Second_Edition" title="Britton &amp; Brown, Illustrated Flora, Second Edition">An Illustrated Flora of the Northern United States, Canada and the British Possessions</a></i> (New York, 1913)<br><i>Lycopodium lucidulum</i> Michx. is a synonym of <i><b><a href="//commons.wikimedia.org/wiki/Huperzia_lucidula" title="Huperzia lucidula">Huperzia lucidula</a></b></i> (Michx.) Trevis.
Nathaniel Lord Britton &amp; Addison Brown
1913
An Illustrated Flora of the Northern United States, Canada and the British Possessions, 2nd edition (1913)