Species of Lycopodium of North America 161 



cies differ in having stems which merge into the peduncles as 

 shown by the gradual reduction of the leaves from the typical 

 foliar condition to that of small bracts, or, again, the peduncles 

 may be entirely leafy. This is probably due to the influence of 

 less abrupt seasonal changes. The forkings of the peduncles are 

 sometimes more distant, and the whole plant has a more lax habit. 

 Specimens have been examined from the following localities : 



Jamaica: Blue Mt. Peak, Dec. 14, 1890, A. S. Hitchcock 

 (U); 1885 (N). 



\ 



Mexico: Orizaba, 1853 (C), Jalapa; Vera Cruz, 4000-500( 

 feet, Dec, 1894, C. L. Smith, no. 21 19 (N) ; Orizaba, 1855 

 Miiller, no. 362 (C) ; Manzanilla. Mt. ChiaDa. 2000 meters. Auo\ 



J 



Quiche 



( 



Nicaragua: 1853-6, C. Wright (N). 



11. L. obscurum L. Sp. PI. 1 102. 1753 



Z. dendroideum Michx. Fl. Bor. Am. 2 : 282. 1803. 



Horizontal stems extensively creeping undergound, giving off 

 single vertical stems which by repeatedly branching produce a 

 bushy mass of foliage 12-25 cm - high : leaves spreading and up- 

 wardly curving, linear-lanceolate and twisted, especially above so 

 as to lie in a vertical plane, acute, mucronate, on the lower branches 

 in 8 rows, on the terminal in 6 rows ; strobiles sessile : sporophylls 

 broadly ovate, papery and erose-margined, acuminate with a sub- 

 ulate apex : sporangia reniform. 



The form with a tendency to dorsiventrality in the terminal 

 branches the upper and lower rows of leaves being shortened and 

 appressed, is supposed to be the one to which the Linnaean name 

 was originally given. It is unfortunate that Michaux's appropriate 

 name could not hold for this miniature tree-like species. 



Distribution: Newfoundland, Maine, Quebec, Ontario, New 

 Hampshire, Vermont, Massachusetts, Connecticut, New York, 

 New Jersey, Maryland, District of Columbia, Virginia, West Vir- 

 ginia, North Carolina, Kentucky, Tennessee, Ohio, Minnesota, 

 Michigan, Montana, Alaska. 



12. L. cernuum L. Sp. PI. 1 103. 1753 



Stems 20-35 cm - l° n g, procumbent or arching, with clustered 

 roots at points of contact with the ground, branching often in 



