GENUS i. 



CLUB-MOSS FAMILY. 



45 



5. Lycopodium adpressum (Chapm.) 



Lloyd & Underw. Chapman's 



Club-moss. Fig. 104. 



Lycopodium inmidatnm var. adpressum Chapm. 



Fl. So. States, ed. 2. 671. 1883. 

 Lycopodium adpressum Lloyd & Underw. Bull. 



Torrey Club 27: 153. 1900. 



Lycopodium Cliapmani Underw. Proc. U. S. Nat. 

 Mas. 23 : 646. 1901. 



Stems prostrate or slightly arching, 6'-i6' 

 long, simple or rarely branched, leafy; pedun- 

 cles -I/-I2' long, slender, rigidly erect, arising 

 directly from the creeping stem, terminated by 

 a slender spike 9"-2f long; leaves of the 

 stem lanceolate-acuminate, curved upwards, 

 irregularly toothed, sometimes doubly so; 

 leaves of the peduncle more slender, incurved, 

 mostly appressed, yellowish green or strami- 

 neous, the lower ones sharply toothed, the 

 upper ones entire or nearly so ; sporophyls 

 mostly incurved and subappressed, abruptly 

 subulate from an ovate more or less toothed 

 base. 



Moist banks and borders of swamps, New 

 York to the Gulf states, mainly near the coast. 



6. Lycopodium alopecuroides L. Fox-tail 

 Club-moss. Fig. 105. 



Lycopodium alopecuroides L. Sp. PI. 1102. 1753. 



Stems stout, mostly recurved and more or less pros- 

 trate, elongate, i-2 long, densely leafy throughout; 

 peduncles very stout, 8'-i3' long, erect, arising usually 

 from the arches of the sterile stems, terminating in 

 stout densely leafy spikes g"-4,' long, 4"-s" thick; 

 leaves of the stem spreading, lanceolate-attenuate to 

 linear-subulate, conspicuously bristle-toothed, especially 

 below the middle, and hairy below near the base ; leaves 

 of the peduncle similar, spreading or ascending; sporo- 

 phyls similar but broader at the base, longer, with long 

 setaceous tips, ascending, spreading, or eventually re- 

 flexed, not hairy below. 



In pine-barren swamps, New York to Florida, near the 

 coast, west to Mississippi. Aug.-Oct. In tropical America. 



7. Lycopodium obscurum L. Ground-pine. 

 Fig. 106. 



Lycopodium obscurum L. Sp. PI. 1102. 1753. 



L. dcndroidcum Michx. Fl. Bor. Am. 2: 282. 1803. 



Main stem creeping horizontally, deep in the 

 ground, giving off a few distant upright aerial 

 branches, these 4-10' high, tree-like, with numerous 

 bushy branches ; leaves 8-ranked on the lower 

 branches, 6-ranked on the terminal, spreading, curved 

 upwards, linear-lanceolate, twisted, especially above, 

 the upper branches thus more or less dorsiventral, 

 sometimes conspicuously so ; sporophyls broadly 

 ovate, acuminate, the margins scarious, erose. 



In moist woods, Newfoundland and Labrador to 

 Alaska, south to the mountains of North Carolina and 

 to Indiana. Ascends to 4000 ft. in Virginia. Also in 

 Asia. July-Sept. Spiral-pine, Trce-like-club-moss, Bunch- 

 evergreen, Crow-foot. 



