Sphaerothecium subchlorophyllosum (Müll.Hal.) J.-p.Frahm

Species

Bryophytes > Dicranales > Dicranaceae > Sphaerothecium

Characteristics

Plants small to medium, in loose cushions, yellow-green, brownish below; terricolous. Stems 5-15 mm tall, little branched; in section round, central strand of medium size, inner cortical cells in 4 rows, thin-walled, outer cortical cells stereids or substereids, in 1 row, reddish. Leaves crowded, appressed dry, erect-spreading wet; oblong to elliptical, acuminate, 3-4 mm long; base not differentiated; margins entire, broadly incurved. Costa 3/5-3/4 of width of leaf base, percurrent to excurrent as short, smooth or dentate, hyaline awn; in proximal section guide cells c. 24, small, thickened; ventral stereid band 1-2 cells thick, completely covering guide cells, dorsal stereids in small groups of 2-3 cells each, stereid groups separated by large, incrassate cells, dorsal surface with a single projecting cell below each stereid group; in distal section ventral stereid band 1-2 cells thick, central, exposing 3-4 guide cells on either side, dorsal stereid groups smaller, of 1-2 cells each, separated by large, incrassate cells, dorsal surface with single-celled lamellae below each stereid group, outer walls strongly thickened. Upper laminal cells rounded, quadrate to shortrectangular, incrassate; basal cells elongate, irregularly shaped, elliptical to rectangular or triangular, thickened, not pitted; alar cells not strongly differentiated, quadrate, thin-walled, reddish. Sporophyte not known.Plants small to medium, in loose cushions, yellow-green, brownish below; terricolous. Stems 5-15 mm tall, little branched; in section round, central strand of medium size, inner cortical cells in 4 rows, thin-walled, outer cortical cells stereids or substereids, in 1 row, reddish. Leaves crowded, appressed dry, erect-spreading wet; oblong to elliptical, acuminate, 3-4 mm long; base not differentiated; margins entire, broadly incurved. Costa f-f of width of leaf base, percurrent to excurrent as short, smooth or dentate, hyaline awn; in proximal section guide cells c. 24, small, thickened; ventral stereid band 1-2 cells thick, completely covering guide cells, dorsal stereids in small groups of 2-3 cells each, stereid groups separated by large, incrassate cells, dorsal surface with a single projecting cell below each stereid group; in distal section ventral stereid band 1-2 cells thick, central, exposing 3-4 guide cells on either side, dorsal stereid groups smaller, of 1-2 cells each, separated by large, incrassate cells, dorsal surface with single-celled lamellae below each stereid group, outer walls strongly thickened. Upper laminal cells rounded, quadrate to shortrectangular, incrassate; basal cells elongate, irregularly shaped, elliptical to rectangular or triangular, thickened, not pitted; alar cells not strongly differentiated, quadrate, thin-walled, reddish. Sporophyte not known.
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Foliage retention deciduous
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Mature height (meter) 0.01 - 0.02
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Cultivation

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Distribution

Sphaerothecium subchlorophyllosum world distribution map, present in South Africa

Identifiers

LSID 35183550
WFO ID wfo-0001195294
COL ID 4YSNV
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Wikipedia (EN)
Wikipedia (FR)

Synonyms

Sphaerothecium subchlorophyllosum Dicranum basalticola