Neckera angustifolia Müll.Hal.
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Authority
Sharp, Aaron J., et al. 1994. The Moss Flora of Mexico. Part Two: Orthotrichales to Polytrichales. Mem. New York Bot. Gard. 69 (2)
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Family
Neckeraceae
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Scientific Name
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Description
Species Description - Plants of moderate size, green to yellowish. Secondary stems horizontal to pendent, irregularly to pinnately branched; branches blunt or occasionally tapered; paraphyllia none. Leaves nearly smooth to undulate, 2.5-4 mm long, oblong-lanceolate, bluntly acute to broadly acuminate; margins entire or subserrulate; costa single, extending to the midleaf or short, faint, and double; upper cells short-rhomboidal, becoming oblong-rhomboidal to oblong and ± pitted below, oblong and often strongly porose at the base, those at the basal corners subquadrate. Autoicous. Perichaetia large (up to 4 mm long); outer bracts orbicular and scale-like, the inner oblong, slenderly acuminate, ± undulate and denticulate at the tips; costa single and weak. Setae less than 1/2 the length of the capsule; capsules immersed, ca. 1.5 mm long, subglobose, yellow-brown; exothecial cells irregularly elongate, thin-walled; peristome single, consisting of short-lanceolate teeth (up to 300 µm long), smooth, ± pellucid (resembling a tapered series of refractive oil droplets). Spores 26-30 µm, pellucid, smooth to finely and obscurely papillose. Calyptrae mitrate, hairy (only 1 loose calyptra seen).
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Discussion
Fig. 555
N. angustifolia C. Miill., Bot. Zeitung 5: 828. 1847.
This is the most distinct Neckera in Mexico owing to long, narrow leaves and (typically) single costae, as well as mitrate, hairy calyptrae (Smith, 1984), but the actual relationship to Neckera should be explored. The peristome is, to an extent, like that of Calyptothecium (of the Pterobryaceae).
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Distribution
On trunks of trees and decomposing logs at 1300-2300 m alt.; Hidalgo, Tamaulipas, Veracruz.—Endemic.On trunks of trees and decomposing logs at 1300-2300 m alt.; Hidalgo, Tamaulipas, Veracruz.—Endemic.
Mexico North America|