1910] Fernald & Bissell,— Lycopodium clavatum 53 
familiar with it in the field as a pronounced variety of L. clavatum. 
That this common 1-spiked plant of our northeastern forested area is 
not true yar. monostachyon is obvious; and, since it so rarely shows 
any marked intergradation to it in the length of peduncles and spikes, 
we here propose it as 
LYCOPODIUM CLAVATUM L., var. megastachyon, n. var., foliis apice 
piliferis, caulinis dentatis vel integris, rameis plerumque adpressis 
integris vel subintegris; ramulis strictis; pedunculis 4.5-15 em. longis; 
spicis solitariis 3.5-9 em. longis 3.5-5 mm. crassis. 
Leaves bristle-tipped, those of the creeping stem dentate or entire, 
of the strict branches usually appressed and entire: peduncles 4.5- 
15 cm. long: spikes solitary, 3.5-11 cm. long, 3.5-5 mm. thick.— 
Widely distributed from Charlevoix and Gaspé Counties, Quebec, 
and Cape Breton Island to Vermont, western Massachusetts, and 
western and southern Connecticut; and locally westward to Michigan. 
Among the many specimens examined, the following are typical. 
QUEBEC, vicinity of Cap à L'Aigle, August 11, 1905 (J. Macoun, no. 
69,273); dry spruce woods, Douglastown, August 22, 1904 (Collins, 
Fernald & Pease): New Brunswick, open spruce woods, Grand 
Falls, August 14, 1901 (Fernald — TYPE SPECIMEN in Gray Herb.): 
Nova Scoria, roadside near “ Half-way House," Cape Breton Island, 
August 17, 1904 (J. R. Churchill): MAINE, in loam, open spruce 
woods, Ashland, August 8, 1901 (Plantae Exsiccatae Grayanae, no. 
59); Sargent Mt., Mt. Desert Island, Sept. 1, 1906 (E. L. Shaw); 
Orono, October 17, 1890 (Fernald); woods, Bethel, October 21, 1902 
(W. Deane); open woods, Bristol, August 23. 1897 (E. B. Chamberlain, 
no. 439): New Hampsuire, slopes of Mt. Washington, August 7, 
1901 (E. F. Williams & B. L. Robinson, no. 810); Sandwich, August 
10, 1906 (F. W. Batchelder); spruce woods, Alstead, July 31, 1901 
(Fernald): Massacnuserts, Boxford, 1881 (C. N. S. Horner); 
Hoosac Plateau, Otis, September 24, 1904 (R. Hoffmann): Con- 
NECTICUT, moist soil, north border of pine woods, Simsbury, August 12, 
1904 (Bissell); Franklin, August 3, 1906 (R. A. Woodward): Micnur- 
GAN, very common in poplar woods, Gwinn, Marquette Co., September 
19, 1909 (A. K. & G. C. Harrison). 
A singular plant collected by Messrs. Arthur K. and Walter H. 
Harrison on ‘the summits of the Taconic Mountains in Hancock, 
Massachusetts, and near Lebanon Springs, New York, has the rigid 
branches and appressed leaves of var. megastachyon. Its usually 
simple whip-like peduncles, however, are 2-4.5 dm. long and bear 
no true fertile spikes. This plant seems to be a remarkable sterile 
state of var. megastachyon, but it is unwise to base a record for the 
variety from New York upon such anomalous material. 
