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Pleuridium Moss

Pleuridium subulatum Rabenhorst 1848

Associations

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Plant / grows among
gregarious apothecium of Lamprospora annulata grows among gametophyte of Pleuridium subulatum
Other: major host/prey

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Comments

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The chromosome number of Pleuridium subulatum is n = 13 (V. S. Bryan 1956; H. A. Crum and L. E. Anderson 1981; A. J. E. Smith and M. E. Newton 1968). It and P. acuminatum are morphologically similar. Pleuridium subulatum is distinguished by its autoicous sexual condition and 1-stratose lamina at leaf shoulder.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 27: 463, 464, 465 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of North America @ eFloras.org
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Flora of North America Editorial Committee
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eFloras.org
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Description

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Plants very small, only up to 5 mm high, yellowish green or yellowish brown, in loose tufts. Stems erect, slender, simple. Lower leaves small and distant, the upper ones larger and crowded, loosely erect or subsecund, 3.0–3.5 mm long, gradually tapered from a narrowly ovate base to a linear or subulate acumen; margins plane or slightly incurved above the middle, serrulate near the apex; costa strong, nearly filling the entire subula; upper cells linear-rectangular, 13–20 µm × 4–6 µm, thin-walled; basal cells rectangular, 15–40 µm × 5–7 µm, thin-walled, pellucid. Autoicous. Perichaetial leaves similar to the upper stem leaves or slightly larger. Setae very short; capsules immersed, subglobose to ovoid, immature. Calyptrae cucullate. Spores not seen.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Moss Flora of China Vol. 1: 77 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Moss Flora of China @ eFloras.org
editor
Gao Chien & Marshall R. Crosby
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eFloras.org
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Description

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Stem leaves patent to erect-spreading, concave, lamina 1-stratose through-out; proximal leaves minute and bract-like, long-deltoid, subulate, 0.38-0.8 × 0.15-0.23 mm, entire proximally, minimally serrulate to entire distally; distal stem leaves with oblong-ovate base, apex subulate, 1.03-2.13 × 0.18-0.35 mm, entire proximally, infrequently serrulate distally; costa narrow, percurrent. Perichaetial leaves oblong-ovate, gradually narrowed to long-subulate, frequently crisped awn, 2.25-3.43 × 0.23-0.4 mm, margins entire proximally, irregularly serrate to serrulate distally in the subula; basal cells loosely rectangular; median cells irregular, subquadrate to short-rectangular to rhomboidal; distal cells in subula oblong to trapezoidal; costa percurrent, filling the tubulose subula; transverse section of costa at mid leaf with central guide cells forming a row across the width between a more restricted band of adaxial stereids and an extensive abaxial stereid band, accessory cells sandwiched in the center; innermost perichaetial leaves ovate, more or less sheathing base and acuminate tip, subpercurrent. Specialized asexual reproduction absent. Sexual condition autoicous, antheridia naked in persistent axillary leafy buds, one to several along the distal part of stem. Seta 0.25-0.53 mm. Spores 25-31.3 µm, densely and finely papillose, light orange-brown in mass.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 27: 463, 464, 465 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Distribution

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Distribution: China, Japan, Europe, and North America.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Moss Flora of China Vol. 1: 77 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Moss Flora of China @ eFloras.org
editor
Gao Chien & Marshall R. Crosby
project
eFloras.org
original
visit source
partner site
eFloras

Habitat

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Habitat: on soil in open fields.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Moss Flora of China Vol. 1: 77 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Moss Flora of China @ eFloras.org
editor
Gao Chien & Marshall R. Crosby
project
eFloras.org
original
visit source
partner site
eFloras

Synonym

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Pleuridium acuminatum auct. non Lindb., Ö fvers. Förh. Kongl. Svenska Vetensk.-Akad. 20: 406. 1863.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Moss Flora of China Vol. 1: 77 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Moss Flora of China @ eFloras.org
editor
Gao Chien & Marshall R. Crosby
project
eFloras.org
original
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eFloras

Synonym

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Phascum subulatum Hedwig, Sp. Musc. Frond., 19. 1801; Pleuridium alternifolium var. lancastriense Sullivant & Lesquereux; P. alternifolium var. robustum Sullivant & Lesquereux
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 27: 463, 464, 465 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
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eFloras

Comprehensive Description

provided by North American Flora
Pleuridium subulatum (Huds.) Rab. Deutschl Krypt.-Fl. 2': 79. 1848. Phascum subulatum Huds. Fl. Angl. 397. 1762.
Plants gregarious in bright, glossy, green cushions; stems very short, 2-3 mm. high, simple or branching subapically: basal leaves distant, short, ovate-lanceolate, the upper ones longer, more crowded, erect or subsecund, lanceolate-subulate, the blade in cross-section often of two layers of cells on each side of the costa, also sometimes sporadically toward the margin; awn minutely serrate, and rough on the back; perichaetial leaves 3-5 mm. long, gradually subulate, the base entire, with lax oblong cells, the awn roughly serrate, with margins incurved. Paroicous: antheridia naked in the axils of the perichaetial leaves: seta short: calyptra cucullate: capsule ovoid, 0.75-1 mm. long, apiculate: apex small and blunt, straight or oblique: spores brown, warty, 21-28 ^ in diameter, maturing in March and April.
Type locality: England.
Distribution: In sandy fields, Massachusetts to Georgia and Alabama.
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bibliographic citation
Albert LeRoy Andrews, Elizabeth Gertrude Britton, Julia Titus Emerson. 1961. SPHAGNALES-BRYALES; SPHAGNACEAE; ANDREAEACEAE, ARCHIDIACEAE, BRUCHIACEAE, DITRICHACEAE, BRYOXIPHIACEAE, SELIGERIACEAE. North American flora. vol 15(1). New York Botanical Garden, New York, NY
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