Leucobryum glaucum (Hedw.) Ångstr.

Leucobryum moss (en), Mousse blanche (fr), Coussinet des bois (fr)

Species

Bryophytes > Dicranales > Leucobryaceae > Leucobryum

Characteristics

Plants in tall, compact cushions or turfs. Stems 1-12.5 cm (rarely shorter). Leaves 3-9 mm, limb concave to subtululose, erect or erect-spreading, sometimes falcate-secund, apex acute or apiculate, usually ± serrulate at the tip, spreading from oblong-obovate sheath, 1-2(-3) times the length of sheath; costa in transverse section near base showing lateral, thicker regions composed mostly of 2-3(-4) layers of enlarged leucocysts on both sides of the central layer of chlorocysts and a central, thinner region composed of 1 layer of smaller leucocysts adaxial to and 2 layers abaxial to the chlorocysts (or vice versa), occasionally with only 1 layer of leucocysts on both sides of the chlorocysts; lamina narrow, 5-11 cells wide. Specialized asexual reproduction by clusters of small caducous leaf-like gemmae at stem tip and by leaves with rhizoids at apex. Seta 8-18 mm, reddish. Capsule strongly inclined and curved when dry and empty, usually strumose, 1.5-2 mm, red to reddish brown; operculum 1.5-2 mm; peristome teeth dark red. Spores nearly smooth to minutely papillose, 13-18 µm.
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Images

Leucobryum glaucum unspecified picture

Distribution

Leucobryum glaucum world distribution map, present in United States of America

Identifiers

LSID 35130315
WFO ID wfo-0001163214
COL ID 725JG
BDTFX ID -
INPN ID 4770
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Leucobryum glaucum Dicranum glaucum Glaucodipsis frigida

Lower taxons

Leucobryum glaucum var. albidum