812 Okdeb 158.— LTCOPODIAOEA 



3 L. sabinsefolium Willd. Ground Fir. St. elongated, creeping; hranches 

 erect, short, dichotomoQS, 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 in length. July. (L. chamae- 

 oyparissus Braun.) 



■i Ii. Caroliniauum L. Sodthebn Grodnd-Pine. St. and branches creeping ; 

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

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

 single spike ; bracts aublanceolate, entire. — In muddy ^rounds, N. J. to Ga. Both 

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

 July. 



5 L. dendroideum Michx. Tree Club Moss, Ground Pine. St. erect; 

 branches alternate, crowded, dichotomous, erect ; te. linear-lanceolate, in 6 equai 

 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. 



fi. OBSCUiiUM. (L. obsourum 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' 

 liigh. Leaves at length reflexed .'it end. Spike rather cylindric, an inch in 

 length, distinct from the; ' ranch. July. 



7 Ii. 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, spreadiing ; spike leafy. — Swamps, N. J. to Fla. and 

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

 clothed with a line, soft fohage. Spike 1 — 2' long, very leafy. Aug. 



8 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 I — 1' long, 

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

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

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



9 L. luoidulum Mx. Shinino 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. — 

 lu 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. Leaves 3 — 5" long, distinctly serrate. Thecae hemispherical or reniform, 

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



10 L. Sel^go L. Fir Club Moss. St. erect, dichotomously and fastigiately 

 branched; Ivs. scattered, imbricate, lance-Unear, 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. Dwarf 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 varions. 

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



§ Leavps all alike, many ranked, surroundinfj the stem Nos. 1, 2 



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



1 S. nipistre Spr. Stems in dense, branched tufts, ascending, subdivided; to. 

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



