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Fissidens scalaris Mitten 1869

Comments

provided by eFloras
Fissidens scalaris, although widespread in the southern part of the United States, is infrequently collected. It is best distinguished by its dimorphic stems and undivided to deeply divided, papillose peristome teeth. B. E. Lemmon (1965) published photographs of the development of plants, including perigonial, perichaetial, and infertile stems, and peristome.
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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: 332, 336, 347, 348 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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eFloras

Description

provided by eFloras
Plants 1.5-6 × 1 mm. Stem unbranched and branched; axillary hyaline nodules present; central strand present. Leaves as many as 16 pairs, oblong to lanceolate, acute to short-acuminate, to 1.3 × 0.25 mm; dorsal lamina narrowed proximally, ending well above or at insertion; vaginant laminae ± 4/5 leaf length, ± equal, minor lamina ending on or near margin; margin ± entire to crenulate-serrulate, limbate on all laminae, limbidium variable, developed best on vaginant laminae, ceasing well before apex, limbidium cells 1-stratose; costa ending 2-5 cells before apex to percurrent, bryoides-type; laminal cells 1-stratose, distinct, smooth, somewhat bulging, firm-walled, irregularly quadrate to hexagonal, 9-14 µm, increasing somewhat in size and ± oblong in proximal parts of vaginant laminae. Sexual condition rhizautoicous; perigonia gemmiform, proximal to fertile and infertile stems, and as branches along horizontal parts of stems. Sporophytes 1 per perichaetium. Seta 2-6 mm. Capsule theca exserted, erect, radially symmetric, 0.5-1.25 mm; peristome anomalous, variable, even in same theca, teeth undivided, imperfectly divided or divided 4/5 their length, papillose distally, smooth proximally; operculum 0.22-0.3 mm. Calyptra cucullate, smooth, to 0.45 mm. Spores 20-26 µm.
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: 332, 336, 347, 348 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

Synonym

provided by eFloras
Moenkemeyera neonii E. B. Bartram; Fissidens neonii (E. B. Bartram) Grout
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: 332, 336, 347, 348 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