g 12 ORDER 158. LYCOPODIACEJ5. 



3 K sabinsefolium Willd. GROUND FIR. St. elongated, creeping; branches 

 erect, short, dichotomous, with fastigiate divisions; Ivs. imbricated and branches 

 erect, terate-subulate, spikes peduncled by the attenuated and slightly leafy sum- 

 mits of the branches, cylindric, solitary, with cordate, acuminate bracts. White 

 Mts. and Brit. Am., creeping among rocks, with erect, numerously divided branches, 

 a few of the divisions terminating in spikes an inch iu length. July. (L. chamae- 

 cyparissus Braun.) 



4 L. Carolinianum L. SOUTHERN GROUND-PINE. St. and branches creeping ; 

 Ivs. lanceolate, entire, appearing 2-ranked, the lateral rows spreading with 

 the 2 intermediate rows appressed ; peduncle erect, solitary, elongated, bearing a 

 single spike ; bracts sublauceolate, entire. In muddy grounds, N. J. to Ga. Both 

 the stem and its branches are prostrate, with erect, slender peduncles 3 6' high. 

 July. 



5 L. dendroldeum Michx. TREE CLUB Moss. GROUND PINE. St. erect; 

 branches alternate, crowded, dichotomous, erect ; Ivs. linear-lanceolate, in 6 equal 

 rows, spreading ; spikes several or many, 1 on each branchlet. An elegant little 

 plant, common in woods, readily distinguished by its upright, tree-like form. Plant 

 about 8' high, with branches more or less diverging. These are subdivided into 

 numerous, forked branchlets, radiant, so as together to represent a spiral arrange- 

 ment. Spikes 2 6, an inch long. July. 



ft. OBSCURUM. (L. obscurum L.) Branches spreading ; spike one. 



6 L. annotinum L. INTERRUPTED CLUB Moss. St. creeping; branches twice 

 dichotomous, ascending; Ivs. in 5 rows, linear-lanceolate, mucronate, spreading 

 and serrulate near the tip; spike oblong, solitary. In mountain woods, N. Eng., 

 Can. Branches subdivided near their base, branchlets simple, 4 or more, 6 8' 

 high. Leaves at length reflexed at end. Spike rather cylindric, an inch in 

 length, distinct from the branch. July. 



7 L. aropecuroides L. FOX-TAIL CLUB Moss. St. creeping, subramous ; 

 branches simple, long, ascending, bearing a single sessile spike at top ; Ivs. linear- 

 subulate, ciliate-dentate at base, spreading ; spike leafy. Swamps, N. J. to Fla. and 

 La. Stem extensively creeping. Branches 6 16' high, rarely subdivided, densely 

 clothed with a fine, soft foliage. Spike 1 2' long, very leafy. Aug. 



L. inundatum L. MARSH CLUB Moss. St. creeping, often submersed; 

 branches simple, solitary, erect, with a single leafy spike at top ; Ivs. linear, scat- 

 tered, acute, entire, curved upwards. In swamps, Can. to Car. Spikes \ 1' long, 

 at the summit of branches which are 5 7' long, arising from the base of the stem. 

 Bracts of the spikes leaf-like, dilated at base, spreading at the end, larger than 

 the stem leaves which are 1 2" long. July. 



9 L. lucidulum MX. SHINING CLUB Moss. St. ascending, dichotomously 

 divided ; Ivs. in 8 rows, linear-lanceolate, denticulate, shining, spreading, or a little 

 reflexed ; sporanges in the axils of leaves not changed nor crowded into a spike. 

 In wet woods, U. S.'and Can. The foliage of this species is dark green and 

 shining, more ample than is common to the genus. Stems 8 16' long, nearly 

 erect. L k eaves 3 5" long, distinctly serrate. Thecae hemispherical or reniform, 

 in the axils of the leaves near the top of the stem. Jl. ; ' 



10 L. Selago L. FIR CLUB Moss. St. erect, dichotomously and fasligiately 

 branched; Ivs. scattered, imbricate, lance-linear, entire, rigid and pungent, but 



awnless. A smaller species than .the last, found on the summits of the White 

 Mts. Stems 2 to 6', branches compact, densely clothed with stiff, shining, spread- 

 ing leaves arranged somewhat in 8 rows and 2 3" in length. Sporanges axil- 

 lary. Aug. 



2. SELAGINEL'LA, Spr. DTVARF CLUB Moss. Fruits of two kinds, 

 viz., antheridia, which are 1 -celled, opening at apex; and oophoridia 

 containing 1 to 4 (rarely 6) globous angular grains. Habit various. 

 Spikes quadrangular. Bracts in 4 rows. (Lycopodium L.) 



Leaves all alike, many ranked, surrounding the stem Nos. I, 9 



Leaves 4-ranked, those of the lateral rows much larger Nos. 3, 4 



1 S. rupestre Spr. Stems in dense, branched tufts, ascending, subdivided; Ivs. 

 scattered, imbricate, linear-lanceolate, capillaceous-acuminale, ciliate; spike soli- 



