Comments
(
anglais
)
fourni par eFloras
Sporophytes are common in Sphagnum trinitense, which can often be distinguished from S. cuspidatum in the field by the appearance of its branches when wet. In this state the branches of S. trinitense just below the capitulum resemble a fine paintbrush drawn out to a pointed tip. See also discussion under 29. S. fitzgeraldii and 39. S. mississippiense. Spore features are taken from H. A. Crum (1984).
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Description
(
anglais
)
fourni par eFloras
Plants moderate-sized, slender and weak-stemmed, green to pale yellow; flaccid and plumose in aquatic forms to more compact and sprawling in emergent forms; green to pale yellow; capitulum not especially enlarged and differentiated. Stems green; superficial cortex of undifferentiated or slightly differentiated cells. Stem leaves ovate-triangular to triangular, 1-1.6 mm; appressed to spreading; apex acute to slightly obtuse; hyaline cells often fibrillose and often 1-septate. Branches straight and unranked, in capitulum tapering at distal end to a point, leaves greatly elongated at distal end. Branch stems green, cortex enlarged with conspicuous retort cells. Branch leaves ovate-lanceolate to lanceolate, 2-3.5 mm; straight, undulate and slightly recurved when dry; margin serrulate; hyaline cells on convex surface with 0-1 small pores at cell apex on concave surface with round wall thinnings in cell angles (often indistinct or lacking); chlorophyllous cells trapezoidal in transverse section and exposed more broadly on the convex surface. Sexual condition monoicous. Spores 26-40 µm; ± roughly to densely granulose.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
(
anglais
)
fourni par eFloras
Sphagnum cuspidatum var. serratum (Austin) Austin; S. cuspidatum var. serrulatum (Schliephacke) Schliephacke; S. helleri Warnstorf; S. laxifolium var. serrulatum Schliephacke; S. serratum Austin
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Sphagnum trinitense: Brief Summary
(
vietnamien
)
fourni par wikipedia VI
Sphagnum trinitense là một loài rêu trong họ Sphagnaceae. Loài này được Müll. Hal. mô tả khoa học đầu tiên năm 1848.
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- Wikipedia tác giả và biên tập viên