Dicranum groenlandicum Brid.

Greenland dicranum moss (en)

Species

Bryophytes > Dicranales > Dicranaceae > Dicranum

Characteristics

Plants in dense tufts, light green, glossy. Stems 4.5-10 cm, tomen-tose throughout with brown to red rhizoids. Leaves erect-spreading, erect-appressed when dry, smooth, (2.5-)3-4(-6.5) × 0.3-0.5 mm, from an ovate-lanceolate base to a tubulose subula, narrowly obtuse at apex, rarely acute, sometimes apical leaves of stems julaceous; margins entire; laminae 1-stratose, occasional 2-stratose regions near costa in proximal part of leaf; costa subpercurrent to percurrent, 1/10-1/6 the width of the leaves at base, smooth, abaxial ridges absent, with a row of guide cells, two well developed and thick stereid bands (5-6 cells thick), adaxial epidermal layer of cells not differentiated, the abaxial layer usually with a few cells enlarged; cell walls between lamina cells slightly bulging; leaf cells smooth; alar cells 1-or 2-stratose, well-differentiated, not extending to costa; proximal laminal cells elongate-sinuose, strongly pitted, (36-)54-65(-98) × (2-)5-6(-9) µm; distal laminal cells (11-)17-26(-42) × (2-)5-6(-12) µm. Sexual condition dioicous; male plants as large as females; interior perichaetial leaves abruptly short-acuminate, convolute-sheathing. Seta 1.5-2 cm, solitary, yellow to reddish yellow. Capsule 1.5-2 mm, nearly straight and erect to slightly arcuate, ± striate when dry, yellowish brown; operculum 1-1.7 mm. Spores 14-19 µm.
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Identifiers

LSID 35123496
WFO ID wfo-0001159442
COL ID 35TM4
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INPN ID 4748
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Dicranum macounii Dicranum groenlandicum Dicranum labradoricum Dicranum tenuinerve Dicranum elongatum subsp. groenlandicum Dicranum groenlandicum var. sachalinense