Lycopodium clavatum L.
Descripción
Stems prostrate, long-creeping, 1–3 mm diam., sparsely rooting; lateral branches terete, ascending to erect, 4–25 cm long, subdichotomously forked to pinnately branched; leaves appressed to patent, ascending or appressed, 4–8 X 0.3–0.9 mm, spirally arranged, each ending in a hair-tip 1–3 mm long; strobili cylindrical, 1–3 per peduncle, 2–9 cm X 3–5 mm, on erect branches at the end of sparsely leaved peduncles, peduncles simple to 3-times sympodially forked; sporophylls deltate-ovate, margins erose, hair-tips 1–2 mm; 2n=68 (Europe, USA).A
Forma de vida
TerrestreA
Ejemplar revisado
Chis (Breedlove 52225, ENCB, NY; Ventura & López 3962, ENCB, NY). Gro (Rzedowski & McVaugh 130, IEB, MEXU, NY). Hgo (Pringle 11885, US). Méx (Boege 1811, MEXU). Mich (Carranza 1191, IEB). Oax (Hallberg 840, DS; Mickel 4935, NY). Pue (Arsène 1944, MEXU, NY, US). Qro (Carranza 1191, ENCB, IEB, MEXU). Ver (Nee 22468, NY).A
Elevación
650 – 3200 mA
Ecología y Hábitat
On banks and exposed slopes.A
Tipo de vegetación
Bosque de pino-encino, Selva alta, Bosque de neblina/mesófilo, Bosque de pinoA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
A highly variable species or species complex, L. clavatum s.l. is in need of worldwide revision. Specimens from Mexico seem to exhibit two extremes: (1) Strobili on peduncles 9–16 cm long, peduncle leaves entire to slightly erose, each with scarious tip, 2–4 strobili per peduncle, each strobilus on a separate modified branch of main peduncle, branch leaves spreading to ascending, annual constrictions none or indistinct, 600–2100 m; and (2) strobili sessile or on peduncles to 4 cm long, peduncle leaves erose, each with a scarious tip and distal leaf margins, 1 strobilus per peduncle (rarely 2, then paired at base of strobili, no peduncle branch), branch leaves ascending to appressed, distinct annual constrictions, 2700–3000 m.
Intermediate specimens occur with 1–4 strobili on the same specimens, usually with a short peduncle branch for each strobilus; peduncles 4–13 cm; branch leaves ascending to spreading or appressed. These occur at intermediate elevations of ca. 2500 m.
A
Intermediate specimens occur with 1–4 strobili on the same specimens, usually with a short peduncle branch for each strobilus; peduncles 4–13 cm; branch leaves ascending to spreading or appressed. These occur at intermediate elevations of ca. 2500 m.
A