Northern prostrate club-moss, Flora of North America Vol. 2
Flora
Entry for Lycopodiella margueritae J. G. Bruce, W. H. Wagner & Beitel [family LYCOPODIACEAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 2,
Names
Lycopodiella margueritaeJ. G. Bruce, W. H. Wagner & Beitel [family LYCOPODIACEAE], W. H. Wagner, & Beitel , Michigan Bot., 30: 9. 1991
Information
Horizontal stems flat on ground, 10--18 X 1--1.6 cm, stems (excluding leaves) thick, 1.8--2.2 mm diam.; leaves monomorphic, spreading, and nearly perpendicular to stem, 6--13 X 0.8--1.2 mm; marginal teeth 3--4 per side, mainly on proximal 1/2. Upright shoots 1(--2) per plant, 13--17 X 0.3--0.7 cm; strobilus 1/2--1/3 total length; leaves initially divergent, then incurved, almost appressed, 5--6 X 0.4--0.8 mm, marginal teeth 0--2 per side. Strobili 5--8 X 0.4--0.9 cm. Sporophylls appressed, incurved, 4--6 X 0.4--0.5 mm, marginal teeth absent. 2 n = 312.
Discussion
Lycopodiella margueritae forms apparently fertile hybrids with the other tetraploid species, L . subappressa . Its hybrids with the diploid L . inundata are sterile, however. Lycopodiella margueritae can be distinguished from L . appressa and L . subappressa by the rather thick and large strobili, 1/3--1/2 the total length of upright shoots, and the more spreading leaves of the strobili and upright shoots.