MICHIGAN ACADEMY OF SCIENCE. 89 



or with the lower pair remoter and narrowed lo petiole-like bases, 

 lu wet, mossy fields or meadows. Keweenaw Co., No. G44, August 



8, 1888. 



LYCOPODIALES. 



LYCOPODIACEAE. 



"NYluMi on the Keweenaw Peninsula in October, 1014, the season 

 beinj>- most propitious for the Avork, I nmde a thoroujih study of 

 the Club Mosses of the region. Among other things observed was 

 the ])ropensity of s]>ecies of the section Lepidotis to produce prolif- 

 erous spikes i. e., spikes with the axes prolonged as leafy shoots; 

 the length of the peduncles is very variable even on the same i)lant ; 

 sometimes the peduncle is obsolete so that the pedicles of the 

 spikes spring from the apex of the branchlet, thus appearing as 

 peduncles. It is custonuiiy to consider L. dendroideum, Michaux, 

 as synonymous with L. obscurum, Linue, even though the former 

 has terete branchlets with equal, 8 ranked leaves, while the latter 

 has dorsiventral branchlets and unequal, 4 ranked leaves. So long 

 as this attitude is maintained there is no excuse for keeping L. 

 alpinum separate from L. complanatum as exactly the same condi- 

 tions i)revail. In the living plants of these species the tips of the 

 leaves of the upper and lower rows of the dorsiventral branchlets 

 are never appressed as is usually stated, in our manuals to be the 

 case. The stems creep along the surface or at various depths down 

 to six inches; these with the branches are always terete and bear 

 equal S-ranked leaves, the free i)ortions of which are never appressed. 



Lycopodium Selago, Lin var. patens (Beauv.) Desv. 



This variety, as well as the typical species, is rather scarce on 

 the Keweenaw Peninsula ; the plant is greener than the species 

 which is yellowish, and coarser; the leaves are narrow, more sharp- 

 ly pointed, and horizontal or nearly so. In wet, mossy grounds, 

 No. SOlOi/o. October 1, 1914. 



Lycopodium clavatum, Lin. var. megastachyon. Fern, and Biss. 



The form listed in BeaPs Michigan Flora as the var. monostach- 

 yon. Hooker, is that plant which has more recently been described 

 by Fernakl and Bissel as L. comi)lanatuin var. megastachyon. This 

 name should therefore be adopted for the plant found in northern 

 Michigan, as it is very distinct from Hooker's variety. 



Lyco])odium obscurum, Linne. 



Our local manuals describe Lycopodium obscurum Linne as with 

 6- or 8-ranked leaves with the 2 u})i)er and 2 lower rows aj)pressed. 

 No plant answering to such a description could be found, and it 



