Dicranoloma brevisetum

• Description
• Taxonomy
• Similar Species
• More Info
• Further Reading
• Notes

Description

Family Dicranaceae

Plants small to large, often in dense tufts. Stems erect , simple or dichotomously to irregularly branched, usually with central strand, often densely radiculose , tips occasionally deciduous. Leaves in several rows around the stem, erect or secund , often falcate-secund, sometimes crispate , short- to long-lanceolate, whole leaves or their tips sometimes deciduous; costa single, usually strong , percurrent to excurrent, sometimes ending in a short to long hyaline awn , smooth , ridged or lamellose on abaxial surface, rhizoids occasionally on adaxial or abaxial surface near leaf base ; laminal cells smooth or sometimes distal cells mammillose or papillose on one or both sides, papillae rarely forked , or toothed by projecting cell ends, pitted or nonpitted; proximal cells elongate , often differentiated in alar region, sometimes undifferentiated. Specialized asexual reproduction absent or occasionally present as brood leaves, microphyllous branches, borne in axils of distal leaves or as rhizoidal tubers. Sexual condition autoicous , dioicous or pseudomonoicous. Seta solitary or several per perichaetium , elongate, usually straight, sometimes flexuose or cygneous . Capsule exserted, erect, inclined , or sometimes curved , cylindrical or ovoid , smooth, ridged, furrowed or irregularly wrinkled, sometimes strumose ; stomata present or absent, superficial; annulus present or absent, often compound , deciduous or persistent ; operculum conic or obliquely rostrate from a conic base; peristome single, usually of 16 lanceolate teeth, deeply divided into 2 or rarely 3 divisions, usually vertically striolate or pitted-striolate proximally, papillose distally. Calyptra cucullate , smooth, naked, sometimes fringed at base, usually covering most of capsule, fugacious . Spores mostly spheric, smooth to papillose.

Genera 50-52, species ca. 900 (17 genera, 90 species in the flora ) : worldwide.

Distinctive characters of this large acrocarpous family include the erect, often tomentose stems; mostly narrow, lanceolate, occasionally falcate or falcate-secund leaves, with a single, narrow to broad costa, with or without rhizoids at the base, sometimes ending in a hyaline, occasionally toothed apex, costa in cross section with or without stereid bands , leaf cells usually smooth, sometimes mammillose, or rarely with a single papilla on one or both sides, papillae rarely forked, asexual propagation by specialized deciduous branches, deciduous leaves or leaf apices, rarely rhizoidal tubers; sporophytes usually solitary or rarely clustered, setae mostly elongate, straight or rarely flexuose or cygneous, capsule cylindric to ovoid, erect to horizontal, smooth or ribbed , sometimes strumose, operculum usually obliquely rostrate, peristome single, with 16 teeth often divided 1/2 way to the base, usually striolate or pitted-striolate proximally, papillose distally.[1]

Genus Dicranoloma

Plants small to robust , pale green to yellowish green or golden brown, in dense tufts. Stems simple or branched, often tomentose ; central strand present or absent. Leaves often falcate-secund, ovate-lanceolate, often gradually narrowed from a broader, somewhat auriculate base to nearly setaceous apex; margins plane , bordered by one to several rows of thick-walled, elongate , linear cells , often serrulate to serrate in the upper half; costa slender, percurrent to excurrent, often with lamellae or dentate wings at back in the upper part of leaves; upper cells irregularly rhomboidal to linear, smooth ; lower cells elongate, frequently with a few rows of hyaline , very narrow cells at the basal margins; alar cells conspicuous , brownish. Dioicous. Setae erect , short to elongate, smooth, solitary or clustered; capsules cylindric , erect or arcuate , smooth when dry; opercula long conic-rostrate; annuli present or none; peristome 16, reddish or reddish brown, striate below, papillose above, 2 to 3-divided, halfway down or lower. Calyptrae cucullate , entire at the base.

Most species of Dicranoloma are distributed in the tropical regions of the world. The number of species placed in the genus is inconstant, depending on taxonomic opinions of different authors . Wijk et al. (1962) listed 121 species in the world. Six species and one variety are known from China.[2]

Taxonomy

Notes

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

Similar Species

Members of the genus Dicranoloma

ZipcodeZoo has pages for 126 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:

D. angustatum · D. angustiflorum · D. angustifolium · D. arfakianum · D. argutum · D. armitii · D. assimile · D. atlanticum · D. australe · D. australe var. schwabei · D. austrinum · D. austro-scoparium · D. bartramianum · D. bartramioides · D. billarderi · D. billardierei · D. billardieri · D. blumei · D. blumii · D. brachycarpum · D. brachyphyllum · D. brachysteleum · D. brasiliense · D. braunfelsioides · D. braunii · D. breviflagellare · D. brevifolium · D. brevisetum · D. brittonae · D. burchardtii · D. buruense · D. calycinum · D. calymperaceum · D. capillare · D. capillifolioides · D. chilense · D. confusum · D. cutlackii · D. cylindropyxis · D. cylindrothecium · D. daymannianum · D. deplanchei · D. diaphanoneurum · D. dicarpoides · D. dicarpum · D. dichotomum · D. dusenii · D. elimbatum · D. eucamptodontoides · D. falklandicum · D. fasciatum · D. fragile · D. fragiliforme · D. francii · D. gedeanum · D. geluense · D. gracile · D. grandiolare · D. grossialare · D. hariotii · D. havilandii · D. hemineuron · D. hollermayeri · D. imponens · D. integerrimum · D. kerguelense · D. kunkelii · D. laevifolium · D. leucolomoides · D. leucophyllum · D. macrodon · D. menziesii · D. microcarpum · D. monocarpum · D. muelleri · D. nelsonii · D. nigricaule · D. obesifolium · D. onraedtii · D. pancheri · D. patentifolium · D. perarmatum · D. perdecurrens · D. perichaetiale · D. perlongifolium · D. perremotifolium · D. perviride · D. platycaulon · D. platyloma · D. plicatum · D. plurisetum · D. punctulatum · D. pungens · D. ramosii · D. reflexifolium · D. reflexum · D. rigens · D. robustum · D. robustum var. longisetaceum · D. rufifolium

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Further Reading

• Müller, P. and J.-P. Frahm. 1987. A review of the Paraleucobryoideae (Dicranaceae). Nova Hedwigia 45: 283-314.
• Williams, R. S. 1913. Dicranaceae. In: N. L. Britton et al., eds. 1905+. North American Flora. ..... 47+ vols. New York. Vol. 15, pp. 77-158.

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 3 providers.
• Moss TROPICOS DatabaseJul 1, 2004.
• Moss TROPICOS: the World Checklist of Mosses
• MOST: Moss TROPICOS Database

Identifiers

• Biodiversity Heritage Library NamebankID: 3778012
• Catalogue of Life Accepted Name Code: MOS-35121491
• Zipcode Zoo Species Identifier: 526695

Footnotes

1. Robert R. Ireland Jr. "Dicranaceae". in Flora of North America Vol. 27 Page 12, 39, 331, 358, 360, 426, 427, 433, 440, 443, 444, 548, 564. Oxford University Press. Online at EFloras.org. [back]
2. "Dicranoloma". in Moss Flora of China V. 1 Page 153. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]

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