Lycopodium thyoides Willd.
Descripción
Subterranean stems long-creeping, just under the ground level, ca. 1.2–2.5 mm diam., with erect aerial branches mostly 15–45 cm long, leaves scattered, linear-lanceolate, spirally arranged, ca. 2–4 mm long; erect aerial stems mostly monopodial with several flattened, flabellate, lateral branches 1.5–3 mm wide and 1–2 terminal fertile peduncles; seasonal growth constrictions evident on the flattened branches; branchlet leaves in 4 ranks, the lateral two pseudodecussate with slightly to widely spreading ± deltate tips, the upper and lower ranks appressed, needle-like, 1–2 mm long, the lower leaves less conspicuous than the upper ones, occasionally 3-ranked with lower rank missing, lateral rank losing pseudodecussate arrangement; fertile peduncles dichotomously branched 2–4 times resulting in 4–12 strobili; pedicels subtending strobili usually twice dichotomously branched; strobili cylindrical, 2–5 cm X 2.5–3 mm, sometimes with a caudate sterile tip to 8 mm long.A
Forma de vida
TerrestreA
Ejemplar revisado
Chis (Breedlove 19992, DS, US). Gro (Velázquez & Zlotnik s.n., 21 Jul 1990, FCME). Hgo (Gimate 798, CAS, ENCB; Pringle 11856, US). Oax (Anderson & Anderson 4716, MICH, NY; Camp 2727, GH, MICH, NY). Pue (Purpus 2691, US; Ventura A. 375, ENCB, NY). Ver (Márquez R. 916, F, NY, XAL, UAMIZ).A
Elevación
1300 – 3050 mA
Ecología y Hábitat
In humid forests at upper elevations.A
Tipo de vegetación
Bosque de neblina/mesófilo, Bosque de pino-encino, Bosque de pino, Matorral de otro tipoA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
This name is applied to all members of the L. complanatum complex found in continental Latin America (Antillean material is L. fawcettii Underw. & F. E. Lloyd). Wilce (1965) treated the complex in the rest of the world, but believed the Latin American material required further study. Lycopodium thyoides appears more irregular in growth characters than taxa north of Mexico.A