Huperzia selago

(Linnaeus) Bernhardi ex Schrank & Martius

Hort. Reg. Monac. 3. 1829.

Common names: Northern fir-moss huperzie sélagine
Illustrated
Basionym: Lycopodium selago Linnaeus Sp. Pl. 2: 1102. 1753
Synonyms: Plananthus selago (Linnaeus) Palisot de Beauvois Urostachys selago (Linnaeus) Herter
Treatment appears in FNA Volume 2.

Shoots erect, indeterminate, 8–12 cm, becoming short-decumbent; leaves of mature portion slightly smaller than leaves of juvenile portion (more pronounced in sun form); indistinct annual constrictions present (more pronounced in shade form); juvenile growth erect. Leaves spreading-ascending (shade) to appressed-ascending (sun) in mature portion, more reflexed in juvenile portion, green (shade) to yellow-green (sun), lustrous; largest leaves triangular, widest at base, 4–7.5 mm; smallest leaves lanceolate, 3.5–5 mm; margins almost entire, papillate; stomates on both surfaces, numerous on adaxial surface, 30–90 per 1/2 leaf. Gemmiferous branchlets produced in 1 pseudowhorl at end of annual growth; gemmae 4–5 × 3–4.5 mm, lateral leaves 1.5–2 mm wide, broadly acute. Spores 29–37 µm. 2n = 268.


Habitat: Terrestrial in sandy borrow pits, ditches, lakeshore swales, and conifer swamps, rarely on acidic, igneous rock or calcareous coast cliffs
Elevation: 0–700 m, rarely to 1600 m

Distribution

V2 3-distribution-map.gif

St. Pierre and Miquelon, Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon, Conn., Maine, Mass., Mich., Minn., N.H., N.Y., Ohio, R.I., Vt., Wis., Europe, Asia

Discussion

Plants from Greenland formerly identified as Huperzia selago are H. appalachiana.

Selected References

None.

Lower Taxa

None.

"widest" is not a number.

... more about "Huperzia selago"
Warren H. Wagner Jr. +  and Joseph M. Beitel +
(Linnaeus) Bernhardi ex Schrank & Martius +
Lycopodium selago +
Northern fir-moss +  and huperzie sélagine +
St. Pierre and Miquelon +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.W.T. +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Conn. +, Maine +, Mass. +, Mich. +, Minn. +, N.H. +, N.Y. +, Ohio +, R.I. +, Vt. +, Wis. +, Europe +  and Asia +
0–700 m, rarely to 1600 m +
linear;elliptic +
photosynthetic +
articulate +  and gemmiferous +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
according-to-seasonal +
Terrestrial in sandy borrow pits, ditches, lakeshore swales, and conifer swamps, rarely on acidic, igneous rock or calcareous coast cliffs +
0.4 cm4 mm <br />0.004 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
1.5mm +  and 2mm +
pseudomonopodial +, dichotomous +, branching +, branched +  and simple +
flat +  and round +
monomorphic +
not imbricate +
green;yellow-green +
remote;dense +
mature +  and juvenile +
reflexed;spreading-ascending;appressed-ascending +
flattened +, lanceolate +  and oblanceolate +
reduced +  and mostly larger +
papillate +
aerial +  and subterranean +
slightly smaller +
juvenile +  and mature +
Hort. Reg. Monac. +
distinct +
emerging +
indeterminate +
0.2 cm2 mm <br />0.002 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
clustered +  and decumbent +
concave +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Illustrated +
plectostelic +  and actino +
axillary +  and adaxial +
protostelic +
subterranean +
stalked +  and sessile +
modified +  and unmodified +
photosynthetic +
small-grooved +
subterranean +
reticulate +, rugulate +  and pitted +
Plananthus selago +  and Urostachys selago +
Huperzia selago +
Huperzia +
species +
on rock +  and terrestrial +
erect +  and decumbent +