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Dendrolycopodium dendroideum

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Dendrolycopodium dendroideum

Secure  (NatureServe)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Lycophytes
Class: Lycopodiopsida
Order: Lycopodiales
Family: Lycopodiaceae
Genus: Dendrolycopodium
Species:
D. dendroideum
Binomial name
Dendrolycopodium dendroideum
(Michx.) A. Haines
Synonyms
  • Lepidotis dendroidea (Michx.) P. Beauv.
  • Lycopodium dendroideum Michx.
  • Lycopodium obscurum f. dendroideum (Michx.) H.L. Blomq. & Correll
  • Lycopodium obscurum var. dendroideum (Michx.) D.C. Eaton

Dendrolycopodium dendroideum, synonym Lycopodium dendroideum, known as tree groundpine,[1] is a North American species of clubmoss. It is part of a complex of species colloquially known as groundpine, which taxa were formerly lumped into the species Lycopodium obscurum.[2][3] The species is native to Russia and also to the colder parts of North America (all states and provinces in Canada except Nunavut; northern and east-central United States including Alaska).[4] The genus Dendrolycopodium is accepted in the Pteridophyte Phylogeny Group classification of 2016 (PPG I),[5] but not in other classifications, which submerge the genus in Lycopodium.[6]

Dendrolycopodium dendroideum prefers humus-rich, sandy, moist but not completely saturated soils. It is very similar to D. obscurum except for side shoots that are round in cross-section rather than flat, and having leaves all the same size.[7]

Uses

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Historically, this and other related clubmosses had been collected for decorative Christmas greenery. Overharvesting clubmosses destroys the slow growing, increasingly rare plant.[citation needed] The spore of this species was also collected as Lycopodium powder for use in early photography, although this was not the preferred species for the purpose.[citation needed]

References

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  1. ^ USDA, NRCS (n.d.). "​Lycopodium dendroideum​". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 24 June 2015.
  2. ^ Haines, Arthur. 2003. Families Huperziaceae and Lycopodiaceae of New England 84.
  3. ^ Hickey, R. J. 1977. The Lycopodium obscurum complex in North America. American Fern Journal 67: 45--49.
  4. ^ Biota of North America Program 2014 state-level distribution map
  5. ^ PPG I (2016). "A community-derived classification for extant lycophytes and ferns". Journal of Systematics and Evolution. 54 (6): 563–603. doi:10.1111/jse.12229. S2CID 39980610.
  6. ^ Christenhusz, Maarten J.M. & Chase, Mark W. (2014). "Trends and concepts in fern classification". Annals of Botany. 113 (9): 571–594. doi:10.1093/aob/mct299. PMC 3936591. PMID 24532607.
  7. ^ Flora of North America, Lycopodium dendroideum Michaux, Fl. Bor.-Amer. 2: 282. 1803. Prickly tree club-moss, lycopode dendroïde