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Lycopodium annotinum L.
INTERRUPTED CLUBMOSS
Lepidotis annotina (L) P Beauv; Lycopodium juniperifolium Lam nom illegit; Spinulum annotinum; Stiff clubmoss

Life   Plantae   Pteridophyta   Lycopodiaceae   Lycopodium

Lycopodium annotinum
© Les Mehrhoff, 2008-2010 · 2
Lycopodium annotinum

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Lycopodium annotinum, entire4
© George Yatskievych, 2006-2011 · 1
Lycopodium annotinum, entire4
Lycopodium annotinum, leaves
© George Yatskievych, 2006-2011 · 1
Lycopodium annotinum, leaves

Lycopodium annotinum, strobilis
© George Yatskievych, 2006-2011 · 1
Lycopodium annotinum, strobilis
Lycopodium annotinum
© George Yatskievych, 2003 · 1
Lycopodium annotinum

Lycopodium annotinum
© George Yatskievych, 2003 · 1
Lycopodium annotinum

Associates · map
FamilyScientific name @ source (records)
Agaricaceae  Phoma crepinii @ BPI (1)
Chlamydomonadaceae  Sphaerella lycopodina @ BPI (1)
Hyaloscyphaceae  Fuscolachnum inopinatum @ BPI (1)
Hyponectriaceae  Pseudomassaria necans @ BPI (1)
Mycosphaerellaceae  Didymella chamaecyparissi @ BPI (2)

Mycosphaerella lycopodina @ BPI (3)
Phacidiaceae  Ceuthospora lycopodii @ BPI (1)
Phaeosphaeriaceae  Leptosphaeria crepinii @ BPI (13)

Leptosphaeria lycopodina @ BPI (6)

Leptosphaeria marcyensis @ BPI (1)

Phaeosphaeria lycopodina @ BPI (1)
_  Heptameria crepinii @ BPI (1)

Pseudapiospora lycopodina @ BPI (1)

Pseudapiospora moravica @ BPI (1)

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Following modified from Flora of Taiwan, National Taiwan University
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FNA | Family List | FNA Vol. 2 | Lycopodiaceae | Lycopodium

1. Lycopodium annotinum Linnaeus, Sp. Pl. 2: 1103. 1753.

Bristly club-moss, lycopode interrompu

Horizontal stems on substrate surface. Upright shoots clustered, mainly unbranched or sparsely branching mainly at base, 1.2--1.6 cm diam.; annual bud constrictions abrupt and conspicuous. Lateral branchlets few and like upright shoots but annual bud constrictions absent. Leaves spreading to reflexed, dark green, linear-lanceolate, (2.5--)5--8 X 0.6--1.2 mm; margins closely and shallowly dentate mainly in distal 1/2; apex sharply pointed, lacking hair tip. Strobili solitary, sessile on shoots, 15--30 X 3.5--4.5 mm. Sporophylls (1.5--)3.5 X 0.7(--2) mm, abruptly narrowed to pointed tip. 2 n = 68.

Swampy or moist coniferous forests, mountain forests, and exposed grassy or rocky sites; 0--1850 m; Greenland; St. Pierre and Miquelon; Alta., B.C., Man., N.B., Nfld., N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon; Alaska, Ariz., Colo., Conn., Idaho, Ky., Maine, Md., Mass., Mich., Minn., Mont., N.H., N.J., N.Mex., N.Y., N.C., Ohio, Oreg., Pa., R.I., Tenn., Utah, Vt., Va., Wash., Wis., Wyo.

This widespread and common club-moss has been divided into various forms or varieties, some of which have been treated as species. Present evidence supports the hypothesis that these are environmentally induced forms, the most distinctive of which has been called Lycopodium annotinum var. alpestre C. Hartman, with leaves only 2.5--6 mm, very leathery, entire-margined, and appressed. Plants intermediate between this and L . annotinum var. annotinum are a form that has been called var. pungens (Bachelot de la Pylaie) Desvaux, an invalid name. Both are found in cold, bleak, northern or high elevation habitats. The species should be studied in detail to determine whether it contains any groups that should be recognized taxonomically.

Updated: 2020-10-22 02:05:02 gmt
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