44 



LYCOPODIACEAE 



2. Lycopodium inundatum L. 



Bog Club-moss. 



Fig. 



93. 



Lycopodirim inundatum L. Sp. PI. 1102. 1753. 



Plants small, with simple or 1-2-forked, short, creeping 

 or slightly arched, slender, often lax, leafy stems ; stem- 

 leaves linear-lanceolate, attenuate, mostly entire, secund ; 

 peduncles long, erect, arising directly from the creeping 

 stem, 0.5-8 cm. long, the leaves spreading or laxly ascend- 

 ing, narrower than those of the stem; spikes 1.5-5 cm. 

 long, the sporophylls similar to the foliar leaves but wider 

 at the base (linear-deltoid), soft, spreading, entire or 

 sometimes toothed just above the base. 



Boggj', clayey or sandy situations, Canadian and Transition Zones; 

 Alaska to Idaho and Oregon (Coos County), and from Newfound- 

 land to New Jersey, western Maryland, Illinois, and Ontario; also 

 in Europe. Type locality, European. 



3. Lycopodium complanatum L. 



Ground-cedar. Fig. 94. 



Lycopodium complanatum L. Sp. PL 1104. 1753. 



Horizontal stems prostrate and wide-creeping, flat- 

 tended above, sparingly branched, with numerous erect 

 irregularly branched aerial stems, the branches of these 

 broadly flattened, 2-3-forked, the divisions few, some- 

 what glaucous, leafy throughout, mostly 2-3 mm. 

 broad; leaves 4-ranked, minute and (excepting those of 

 the under row) imbricate and strongly decurrent, those 

 of the upper row narrow and incurved, of the lateral 

 rows broad, with spreading tips, and of the under row 

 minute, deltoid-cuspidate ; peduncles slender, 3-13 cm. 

 long, distantly bracteate, rarely simple, usually once 

 or twice dichotomous near the summit, each branch 

 terminating in a slender cylindric spike 1.5-3 cm. long; 

 sporophylls broadly ovate, acuminate. 



In woods and thickets; Alaska to Labrador and Newfound- 

 land, south to northeastern Washington, Idaho, Montana, On- 

 tario, northern New York, Vermont, and Maine; Eurasia. Type 

 locality, European. Replaced in the eastern United States by 

 var. flabelliforme Fernald. 



4. Lycopodium obscCirum L. Ground-pine. Fig. 95. 



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

 Lycopodium dendroideum Michx. Fl. Bor. Am. 2: 282. 1803. 

 Lycopodium obscurum dendroideum D. C. Eaton, in A. Gray, 

 ' Man. ed. 6, 696. 1890. 



Main stem deeply hypogean, horizontal, elongate, 

 giving rise to a few distant upright aerial branches, 

 these 10-35 cm. high, treelike, with numerous bushy 

 branches ; leaves 8-ranked on the lower branches, 6- 

 ranked on the terminal ones, linear-lanceolate, spread- 

 ing but curved upwards and twisted (especially 

 above), the upper branches thus appearing more or 

 less dorso-ventral, sometimes conspicuously so ; spikes 

 2-5 cm. long, nearly sessile ; sporophylls very broadly 

 ovate, abruptly acuminate, the margins scarious, erose. 



Moist woods, Canadian and Transition Zones; .-Maska to 

 Baffin Land and Newfoundland, south to central Washington, 

 Montana, South Dakota, Indiana, and the mountains of north- 

 eastern Alabama, and North Carolina; also in eastern Asia. 

 Type locality: Pennsylvania. 



