CLUl'.-^lOSS FA.MILY 



45 



5. Lycopodium sitchense Rupr. Alaskan Club-moss. tig. 96. 



Lycopodium sitchense Rupr. Beitr. Pflanzenk. Russ. Reich. 3 : 

 30. 1845. 



Stems slender, horizontal, nearly superficial, 10-40 

 cm. long, sejiding up numerous aerial stems, these 

 several times dichotomous, the branches (with their 

 leaves) glaucous, roundish, vertical, forming com- 

 pact tufts 4-8 cm. high, with few or numerous 

 stronger projecting fertile branches; leaves of the 

 branchlets 5-ranked, appressed or incurved-ascending, 

 linear, acute, 2-3 mm. long, thick, entire ; spikes soli- 

 tary, cylindric, 0.5-2 cm. long, sessile, or borne upon 

 short minutely bracteate peduncles (up to 1 cm. long) ; 

 sporophylls acuminate or subulate from an ovate base, 

 greenish, erose. 



Moist meadows and coniferous woods, Hudsonian and 

 Arctic Zones; Alaska to Labrador and Newfoundland, south to 

 Oregon, Idaho, western Ontario, New York, and northern New 

 England. Type locality: Alaska. 



6. Lycopodium annotinum L. Stiff Club-moss. Fig. 97. 



Lycopodium annotinum L. Sp. PI. 1103. 1753. 



Stems prostrate, creeping, often 1 meter long, 

 sparsely leafy, giving rise to numerous erect or 

 ascending branches, these 10-30 cm. high, simple or 

 sparingly forked, leaf}' throughout; leaves uniform, 

 in 5 ranks, rigid, spreading or reflexed, linear-lance- 

 olate, pungent, 6-10 mm. long, sharply to obsoletely 

 serrate, or (in exposed alpine or boreal situations) 

 the leaves much shorter, thicker, stronglj- ascending 

 or appressed, subentire ; spikes solitary, sessile, oblong- 

 cylindric, 1-2.5 cm. long, the sporophylls broadly 

 ovate, abruptly acuminate-attenuate. 



Moist woods or thickets, Boreal Region; Alaska to Labrador 

 and Newfoundland, south to Oregon (Mount Hood), Colorado, 

 Wisconsin, and Maryland; also in Greenland and Eurasia. 

 Type locality, European. The form with thick ascending leaves 

 is usually known as var. pungens Desv. 



7. Lycopodium clavatum L. 

 Running-pine. Fig. 98. 



Lycopodium clavatum L. Sp. PI. 1101. 1753. 



Main stems prostrate, wide-creeping (1-3 meters), 

 branching horizontally, and with numerous very leafy, 

 assurgent, pinnately branched aerial divisions ; leaves 

 crowded, many-ranked, incurved-spreading. linear- 

 subulate, bristle-tipped (the bristle commonly decidu- 

 ous), entire or denticulate; peduncles mostly 3-15 cm. 

 long, with slender whorled or scattered, denticulate, 

 bristle-tipped bracts ; spikes 1-4, narrowly cylindric, up 

 to 15 cm. long if solitary, the sporophylls deltoid-ovate, 

 abruptly acuminate, bristle-tipped, the margins scari- 

 ous, erose-fimbriate. 



Moist coniferous woods, brushy slopes, and boggy situations, 

 Boreal Region; Alaska to Newfoundland, south to Oregon, Idaho, 

 Montana, Minnesota, Michigan, and the mountains of North 

 Carolina; nearly cosmopolitan. Type locality, European. The 

 Pacific Coast plant with poorly developed or deciduous terminal 

 bristles upon the leaves of the ascending branches is var. 

 intcgerrimum Spring. 



