Superregnum: Eukaryota
Regnum: Plantae
Divisio: Tracheophyta
Divisio: Lycopodiophyta
Classis: Lycopodiopsida
Subclassis: Lycopodiidae
Ordo: Lycopodiales
Familia: Lycopodiaceae
Subfamilia: Huperzioideae
Genus: Huperzia
Species: Huperzia porophila
Name
Huperzia porophila (F.E.Lloyd & Underw.) Holub, Folia Geobot. Phytotax. 20: 76 (1985).
Synonyms
Basionym
Lycopodium porophilum F.E.Lloyd & Underw., Bull. Torrey Bot. Cl. 27(4): 150 (1900).
Homotypic
Lycopodium selago var. porophila (F.E.Lloyd & Underw.) Clute, Fern Bull. 11: 47 (1903). (“porophyllum”)
Lycopodium lucidulum var. porophilum (F.E.Lloyd & Underw.) Clute, Fern-Allies 262 (1905).
Lycopodium lucidulum f. porophilum (F.E.Lloyd & Underw.) Clute, Fern Bull. 16: 22 (1908).
Urostachys porophilus (F.E.Lloyd & Underw.) Herter, Philipp. J. Sci. 22: 179 (1923).
Urostachys lucidulus var. porophilus (F.E.Lloyd & Underw.) Nessel, Bärlappgewächse 50 (1939). (non Lam.)
Huperzia selago var. porophila (F.E.Lloyd & Underw.) Á.Löve & D.Löve, Univ. Colorado Stud. Ser. Biol. Ser. no. 17: 5 (1965).
Distribution
Native distribution areas:
Continental: Northern America
Regional: Eastern Canada
Ontario.
Regional: North-Central U.S.A.
Illinois, Iowa, Minnesota, Missouri, Wisconsin.
Regional: Northeastern U.S.A.
Indiana, Ohio, Pennsylvania, Vermont, West Virginia,
Regional: Southeastern U.S.A.
Alabama, Georgia, Kentucky, Maryland, North Carolina, South Carolina, Tennessee, Virginia.
References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References
Lloyd, F.E. & Underwood, L.M. 1900. A review of the species of Lycopodium of North America. Bulletin of the Torrey Botanical Club 27(4): 147–168, pl. 2–4. Reference page.
Links
Hassler, M. & Schmitt, B. 2019. World Ferns. Checklist of the Ferns and Lycophytes of the World. Version 7.71 – March 2019. Accessed 16 May 2019.
Hassler, M. 2019. Huperzia porophila – World Ferns: Checklist of Ferns and Lycophytes of the World . In: Roskov Y., Orrell T., Nicolson D., Bailly N., Kirk P.M., Bourgoin T., DeWalt R.E., Decock W., De Wever A., Nieukerken E. van, Zarucchi J. & Penev L. (eds.) 2019. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: 2019 May 16.
International Plant Names Index. 2019. Huperzia porophila. Published online. Accessed: May 16 2019.
Govaerts, R. et al. 2019. Huperzia porophila in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2019 May 16. Reference page.
Tropicos.org 2019. Huperzia porophila. Missouri Botanical Garden. Published online. Accessed: 16 May 2019.
USDA NRCS PLANTS Profile
Vernacular names
English: Rock Club Moss, Rock Firmoss
Huperzia porophila, the rock clubmoss or rock firmoss, grows throughout the Appalachian province of the Eastern United States and central Canada, from Ontario south to Georgia and Alabama. It is rare east of the Appalachians, being most common in a north–south belt along the western plateau area.[3]
Huperzia porophila grows only on or over rock and requires cool, moist, shaded, acid spots. It is a beautiful sight growing over boulders and outcrops. It is often confused with the shining firmoss (Huperzia lucidula) whose range it largely shares and which also often grows on rocks. The rock firmoss leaves, 3–8 mm long, are generally not shiny like those of the shining firmoss, and the ascending 12–15 cm stems are seldom branched. Unlike H. lucidula, it only grows as individual plants and not as dense colonies. One of the best sites for viewing this species is in the Hocking Hills in southeast Ohio.[4]
This species is of hybrid origin, the parents being Huperzia lucidula and Huperzia selago.
H. porophila hybridizes with H. lucidula to produce the sterile hybrid H. × bartleyi.
References
drawing from Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 1: 44.
The Plant List Huperzia porophila (F.E. Lloyd & Underw.) Holub
Biota of North America Program 2014 county distribution map
Flora of North America, Huperzia porophila (F. E. Lloyd & L. Underwood) Holub, 1985.
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