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• Physical Description
• Distribution
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Taxonomy

Notes:

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

Physical Description

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.^[1]

Habit: Nonvascular

Distribution

Similar Species

Members of the genus Orthotrichum:

There are approximately 431 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them: O. aciculare · O. acroblepharis · O. acuminatum · O. acutifolium · O. aequatoreum · O. affine (Orthotrichum Moss) · O. affine fastigiatum · O. affine sublaeve · O. affine subrivale · O. affine var. fastigiatum · O. afrofastigiatum · O. alpestre (Orthotrichum Moss) · O. amabile · O. amannii · O. americanum · O. anaglyptodon · O. anderssonii · O. anomalum (Orthotrichum Moss) · O. anomalum Hedw. var. macroporum Herzog · O. anomalum var. americanum · O. anomalum var. saxatile · O. antarticum · O. apiculatum · O. araucarieti · O. arborescens · O. arcangelianum · O. arcticum · O. arctum · O. argentinicum · O. aristatum · O. aristoblepharum · O. armatum · O. assamicum · O. assimile · O. aureum · O. australe · O. austro-cupulatum · O. austropulchellum · O. avonense · O. bartramii (Bartram's Orthotrichum Moss) · O. beckettii · O. bellum · O. bequaertii · O. berggrenii · O. bicolor · O. blyttii · O. bolanderi (Bolander's Orthotrichum Moss) · O. brachytrichum · O. brassii · O. braunii · O. breutellii · O. breve · O. brevicolle · O. brevirostrum · O. brevisetum · O. brigantiacum · O. brotheri · O. brownii · O. bruchii · O. caespitosum · O. calcareum · O. californicum · O. callistomoides · O. callistomum · O. calvum · O. canadense · O. cancellatum · O. casasianum · O. caucasicum · O. chilense · O. cirrhatum · O. citrinum · O. clathratum · O. clavellatum · O. clintonii · O. coarctatum · O. commutatum · O. compactum · O. conceptionense · O. confertum · O. conicorostrum · O. consimile (Orthotrichum Moss) · O. consimile anomaloides · O. consobrinum · O. coralloides · O. courtoisii · O. crassifolium · O. crenatoerosum · O. crenulatum · O. cribrosum · O. crispatum · O. crispifolium · O. crispulum · O. crispum · O. crista · O. cupulatum (Orthotrichum Moss) · O. cupulatum cupulatum · O. cupulatum Hoffm. ex Brid. var. immersum (Herzog) Podp. · O. cupulatum riparium · O. cupulatum var. nudum

Bibliography

• Lewinsky, J. 1993. Monographic studies on Orthotrichum (Musci). Bryobrothera, Vol. 2: 1--59.
• Vitt, D. H. 1973. A Revision of the Genus Orthotrichum in North America, North of Mexico. Bryophytorum Bibliotheca, 1: 1--108.

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Notes

Contributors:

• Bisby, F.A., Y.R. Roskov, M.A. Ruggiero, T.M. Orrell, L.E. Paglinawan, P.W. Brewer, N. Bailly, J. van Hertum, eds (2007). Species 2000 & ITIS Catalogue of Life: 2007 Annual Checklist. Species 2000: Reading, U.K.
• Brands, S.J. (comp.) 1989-2005. Systema Naturae 2000. The Taxonomicon. Universal Taxonomic Services, Amsterdam, The Netherlands. [http://sn2000.taxonomy.nl/Taxonomicon/]. Access date: Nov 23, 2005
• Global Biodiversity Information Facility. Accessed February 27, 2008. http://www.gbif.org Mediated distribution data from 4 providers.
• MOST: Moss TROPICOS Database
• Moss TROPICOS DatabaseJul 1, 2004.
• Moss TROPICOS: the World Checklist of Mosses
• USDA, NRCS. 2005. The PLANTS Database, Version 3.5 (http://plants.usda.gov). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

Data Sources:

Accessed through GBIF Data Portal February 27, 2008:

• Australian National Herbarium (CANB)
• Missouri Botanical Garden
• The New York Botanical Garden: American Bryophyte Catalog
• UNIBIO, IBUNAM: MEXU/Colección de Briofitas

Identifiers:

• Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 547939
• Global Biodiversity Information Facility Taxonkey: 442164
• U.S.D.A. Plant Symbol: ORJA
• Zipcode Zoo Species Identifier: 52834

Footnotes:

1. Dale H. Vitt "Orthotrichum". in Bryophyte Flora of North America Vol. 2. Oxford University Press. Online at EFloras.org.