140 REPORT OF NEW JERSEY STATE MUSEUM. 



bb. Plant with a prostrate creeping stem from which rise erect branches. 

 c. Leaves linear subulate, not all strictly appressed. 



d. Creeping stem, short, not more than .5 dm. in length, 

 from which rises a slender stalk with minute appressed 

 leaves and a single terminal spike. /,. carolinianum, p. 142 

 dd. Creeping stem, 3-12 dm. long, with many erect or recumbent 

 leafy branches, from some of which rise the slender fruit 

 stalks, bearing one to four spikes each. L. clavatum, p. 143 

 cc. Leaves minute, scale-like, imbricated and appressed on the flat- 

 tened palmate branches, which rise from a similar creeping 

 stem. 



d. Trailing stem deep down below the surface, branches less 

 than two millimeters wide. L. tristachyum, p. 143 



dd. Trailing stem on the surface, branches two to four milli- 

 meters wide, more loosely forked. L. Habelliforme, p. 143 



Family LYCOPODIACE^. Club Mosses. 



LYCOPODIUM L. 



Lycopodium lucidulum Michx. Shining Club-Moss. 



Lycopodium lucidulum Michaux, PI. Bor. Amer. IL 284. 1803 [Canada to 

 Mountains of Carolina]. — Britton 303. 



Moist woods of North Jersey and locally in the Middle dis- 

 trict. 



Spores Mature. — Late July to mid- August; period of maturity 

 brief. Evergreen. 



Middle District. — New Egypt, Birmingham, Camden, Springdale (S), Med- 

 ford (S), Woodbury, Swedesboro, Yorktown. 



Lycopodium inundatum L. Bog Club-Moss. 



Lycopodium inundatum Linnaeus, Sp. PI. 1102. 1753 [Europe]. 



Bogs of the northern counties and very rarely in the Middle 

 district. 



This species seem clearly distinct from the next, easily rec- 

 ognized by its slender stem and lower habit. Mr. W. A. Poyser 

 tells me that he has specimens from Fairmount, Bergen County. 



Middle District. — Kaighns Ft. 



