40 
LYCOPODIACEAE. 
Sporanges borne in the axils of leaves which are similar to those of the stem. 
Sporanges mostly wanting in the axils of the upper, mostly 8-ranked leaves. 
Stems erect, rigid; leaves uniform, ascending. 1. L. Selago. 
Stems somewhat lax, spreading; leaves spreading or deflexed, alternately longer and 
shorter. 
2. L. lucidulum. 
Sporanges only in the axils of the upper leaves forming terminal spikes; leaves many-ranked- 
Plant small; leaves acute, soft, mostly entire. 3. L. inundatum., 
Plant stout; leaves narrow, s 
pinulose-pointed, bristle-toothed below the middle. 
L. alopecuroides. 
Sporanges borne in the axils of yellowish ovate or cordate seale-like leaves, which are very unlike 
those of the sterile stems. 
Stems leafy up to the base of the spike or nearly so. 
Spikes erect, closely sessile. 
Stems erect, tree-like, 5. L. obscurum. 
Stems creeping with ascending branches. 
Leaves uniform, spreading, 5-ranked. 6. L. annolinum. 
Leaves of 2 forms, erect-imbricate, 4-ranked. 7. L. alpinum. 
Spikes erect, short-peduncled; leaves small, appressed, 4-ranked., 8. L. sabinaefolium. 
Fertile branches with minute leaves so that the spikes appear long-peduncled. 
Leaves uniform, many-ranked; stems terete. 9g. L. clavatum. 
Leaves of 2 forms, few-ranked; stems flattened. 
Sterile stems entirely creeping; spikes solitary. 10. L. Carolinianum. 
Sterile stems with fan-like ascending branches; spikes clustered. 
11. L, complanatum. 
1. Lycopodium Selago I. Fir Club-moss. (Fig. 88.) 
2. Lycopodium lucidulum Michx. Shining 
Club-moss. (F 
Lycopodium lucidulum Michx, F1. 
Stems somewhat lax, ascending or spreading, thick, 
2-3 times forked, the branches 
Lycopodium Selago I, Sp. Pl. 1102, 1753. 
Stems’3/-6’ high, thick, rigid, erect, 2-5 times 
forked, the branches fastigiate, forming a level- 
topped cluster. Leaves crowded, uniform, ascend- 
ing, elongated-lanceolate, mucronulate, entire or 
spinulose-denticulate, nerved below, convex above, 
the upper mostly S-ranked, sterile, those below 
bearing the small sporanges in their axils, those of 
the lower half of the stem again sterile; plant 
propagated also by bud-like organs which have 
a lower pointed bract and 2 or 3 upper fleshy and 
obovate ones. 
On rocks, Labrador and Greenland to Alaska, south 
to the mountains of Maine, New Hampshire, Vermont 
and northern New York, on the summits of the higher 
Alleghenies to North Carolina, and to Michigan and 
Washington, Also in Europe and Asia. Autumn. 
ig. 89.) 
Bor. Am. 2: 284. 1803. 
6/-12’ high. Leaves 
widely spreading or reflexed, dark green, shining, 1- 
nerved, acute, minutely toothed, a series of longer ones 
alternating with a series of shorter, the latter more fre- 
quently bearing the sporanges at a short distance below 
the summit of the stem; sporanges of preceding years 
often persistent ; plant also propagated like the preced- 
ing species by gemmae, which fall to the ground and 
become new plants. 
In cold, damp woods, Newfoundland to British Columbia, 
south to North Carolina and Iowa. Ascends to nearly 5700 ft. 
in Virginia. Aug.—Oct. 
