Plagiothecium laetum Schimp.

Plagiothecium moss (en)

Species

Bryophytes > Hypnales > Plagiotheciaceae > Plagiothecium

Characteristics

Plants in dense mats, light green to yellowish, glossy. Stems to 2 cm, 1-3(-4) mm wide across leafy stem, prostrate, complanate-foliate or rarely somewhat julaceous. Leaves erect or spreading, sometimes secund with apices pointing toward substratum, imbricate or rarely distant, oblong-ovate or ovate-lanceolate, asymmetric, flat, often slightly undulate, 0.7-2.6 × 0.3-1.2 mm; margins plane or often narrowly recurved nearly to apex, entire or sometimes with few serrulations at apex; apex slender-acuminate, not abruptly contracted; costa ending just beyond leaf base or rarely with one branch to mid leaf, sometimes ecostate; alar cells rectangular, 40-100 × 9-29 µm, in 1-5 vertical rows, terminating in 1 cell at base, region triangular; medial laminal cells 96-168 × 4-10 µm. Specialized asexual reproduction usually present as propagula, 40-86 × 8-14 µm, of 3-6 cells borne in leaf axils. Sexual condition autoicous, usually fruiting. Seta orange-brown to red, 1-1.6 cm, straight or curved. Capsule erect to cernuous, light brown to orange-brown when mature, straight to arcuate, 0.5-2 × 0.4-0.7 mm, smooth when dry or rarely wrinkled at neck when arcuate; operculum conic to short-rostrate, 0.3-0.8 mm; endostome cilia 1-3, sometimes absent. Spores 9-14 µm.
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Images

Plagiothecium laetum unspecified picture

Identifiers

LSID 35124470
WFO ID wfo-0001159993
COL ID 4JHJ6
BDTFX ID -
INPN ID 5965
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Leskea hamosa Plagiothecium laetum Plagiothecium decursivifolium Hypnum lepidulum Plagiothecium gravetii Plagiothecium denticulatum var. eciliatum Plagiothecium denticulatum subsp. aptychus Plagiothecium denticulatum var. hercynicum Plagiothecium denticulatum var. laetum Plagiothecium denticulatum var. microcarpum Plagiothecium denticulatum var. recurvum Plagiothecium denticulatum var. tenellum Plagiothecium laetum var. neomexicanum