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Orthotrichum acuminatum

Description

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Genus Orthotrichum

Plants 1--5(--13) cm. Stem leaves imbricate, usually erect-appressed and straight when dry, spreading to wide-spreading when moist, 0.6--6.5 mm; ovate , lanceolate, or linear-lanceolate, obtuse , acute to rounded-acute, acuminate or sometimes obtuse, rarely channeled , rarely acuminate or piliferous ; margins reflexed to revolute , rarely plane or involute , entire or denticulate near apex; costa strong , usually ending near apex; distal leaf cells mostly rounded , almost isodiametric, usually 6--24(--30) µm, with 1--3 papillae per cell, papillae conical or forked ; basal leaf cells elongate-linear, thick-walled and nodose or rectangular, thin-walled, and smooth near base ; marginal leaf cells shorter. Specialized asexual reproduction by brood-bodies, sometimes present on leaves, 3--14 cells long. Perichaetial leaves similar to stem leaves or sometimes slightly differentiated. Sexual condition goniautoicous or cladautoicous , rarely dioicous. Seta to 15 mm, twisted to left. Capsule immersed , emergent or exserted, varying from globose to cylindric , 0.7--3 mm, more or less gradually constricted to seta , smooth or with 8 or 16 ribs and sometimes constricted below mouth when dry; stomates superficial or immersed in central or proximal parts of capsules; peristome double or more rarely single or absent; exostome teeth 0, 8, or 16, papillose or striate , reflexed, recurved, or erect ; endostome segments 0, 8, or 16. Calyptra large, mitrate, conic-oblong to short-conic, more or less hairy or naked, plicate or more rarely smooth, not split at base. Spores isomorphic .

Species 120; worldwide, more common in temperate areas.Dale H. Vitt "Orthotrichum". in Bryophyte Flora of North America Vol. 2. Oxford University Press. Online at EFloras.org.

Habitat

Typically found at an altitude of 0 to 2,620 meters (0 to 8,596 feet).Mean = 1,142.400 meters (3,748.032 feet), Standard Deviation = 1,183.930 based on 25 observations. Altitude information for each observation from British Oceanographic Data Centre.

Taxonomy

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Notes

Name Status: Accepted Name . Latest taxonomic scrutiny: 19-Jul-2004

Similar Species

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Members of the genus Orthotrichum

There are approximately 271 species in this genus. Here are just 100 of them:

O. acroblepharis · O. acuminatum · O. aequatoreum · O. affine (Orthotrichum Moss) · O. affine var. fastigiatum · O. afrofastigiatum · O. alpestre (Orthotrichum Moss) · O. americanum · O. anaglyptodon · O. anomalum (Orthotrichum Moss) · O. anomalum Hedw. var. macroporum Herzog · O. anomalum var. americanum · O. anomalum var. saxatile · O. apiculatum · O. araucarieti · O. arborescens · O. arcangelianum · O. arcticum · O. argentinicum · O. aristatum · O. aristoblepharum · O. armatum · O. assimile · O. austro-cupulatum · O. bartramii (Bartram's Orthotrichum Moss) · O. berggrenii · O. bicolor · O. blyttii · O. bolanderi (Bolander's Orthotrichum Moss) · O. brachytrichum · O. brassii · O. braunii · O. brotheri · O. caespitosum · O. calcareum · O. callistomum · O. calvum · O. canadense · O. cancellatum · O. casasianum · O. citrinum · O. clavellatum · O. coarctatum · O. compactum · O. confertum · O. consimile (Orthotrichum Moss) · O. consimile anomaloides · O. consobrinum · O. courtoisii · O. crassifolium · O. crenatoerosum · O. crenulatum · O. crispifolium · O. crispulum · O. crispum · O. cupulatum (Orthotrichum Moss) · O. cupulatum Hoffm. ex Brid. var. immersum (Herzog) Podp. · O. cupulatum var. nudum · O. curvatum · O. cyathiforme · O. cylindrocarpum · O. daiphanum · O. dasymitrium · O. delavayi · O. densum · O. denticulatum · O. diaphanum (Orthotrichum Moss) · O. drummondii · O. elegans · O. elegans var. elegans · O. elegantulum · O. elongatum · O. epapillosum (Orthotrichum Moss) · O. erosum · O. erpodiaceum · O. erubescens · O. euryphyllum · O. exiguum (Orthotrichum Moss) · O. fallax · O. fastigiatum · O. fenestratum (Orthotrichum Moss) · O. firmum · O. floerkii · O. flowersii (Flower's Orthotrichum Moss) · O. furcatum · O. gigantosporum · O. gracile · O. graphiomitrium · O. griffithii · O. gymnostomum (Orthotrichum Moss) · O. hallii (Hall's Orthotrichum Moss) · O. handiense · O. hawaiicum · O. hendersonii · O. herteri · O. heteromallum · O. hispanicum · O. holmenii · O. holzingeri (Holzinger's Orthotrichum Moss) · O. hooglandii

Bibliography

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More Info

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal February 27, 2008:

Identifiers

Footnotes

Last Revised: 2008-08-24