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Dicranum scoparium Hedw.
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Dicranum scoparium
© Copyright Bobby Hattaway 2011 · 5
Dicranum scoparium

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Dicranum scoparium
© Copyright Malcolm Storey 2011-2118 · 3
Dicranum scoparium
Dicranum scoparium
© Copyright Malcolm Storey 2011-2118 · 3
Dicranum scoparium

Dicranum scoparium
© Copyright Malcolm Storey 2011-2118 · 3
Dicranum scoparium
Dicranum scoparium
© Copyright Malcolm Storey 2011-2118 · 3
Dicranum scoparium

Dicranum scoparium
© Copyright Malcolm Storey 2011-2118 · 3
Dicranum scoparium
Dicranum scoparium
© Copyright Malcolm Storey 2011-2118 · 3
Dicranum scoparium

Dicranum scoparium
© Copyright Malcolm Storey 2011-2118 · 3
Dicranum scoparium
Dicranum scoparium
© Copyright Malcolm Storey 2011-2118 · 3
Dicranum scoparium

Dicranum scoparium
© Copyright Malcolm Storey 2011-2118 · 3
Dicranum scoparium
Dicranum scoparium
© Copyright Malcolm Storey 2011-2118 · 3
Dicranum scoparium

Dicranum scoparium
© Copyright Malcolm Storey 2011-2118 · 3
Dicranum scoparium
Dicranum scoparium
© Copyright Malcolm Storey 2011-2118 · 3
Dicranum scoparium

Dicranum scoparium
© Copyright Malcolm Storey 2011-2118 · 3
Dicranum scoparium
Dicranum scoparium
© Copyright Malcolm Storey 2011-2118 · 3
Dicranum scoparium

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FamilyScientific name @ source (records)
Tricholomataceae  Omphalia fibula @ BPI (2)

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Following modified from Taiwan Biodiversity National Information Network
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Kingdom Plantae  
 Phylum Bryophyta  
 Class Bryopsida  
 Order Dicranales  
 Family Dicranaceae  
 Genus Dicranum  
  Dicranum scoparium    Hedw., 1801 
Provider: Chiang, Tzen-Yuh 
hierarchy tree    download xml    download txt    Chinese Page    
Synonyms: Cecalyphum condensatum Dicranoloma otii Dicranum alatum Dicranum angustifolium Dicranum bonjeanii alatum Dicranum canadense Dicranum condensatum Dicranum consobrinum Dicranum dillenii Dicranum kindbergii Dicranum latifolium details
Citation: Allen, B. H. 1987. Mosses from the state of Maine. Evansia 4: 17–20. Anderson, L. E., H. A. Crum & W. R. Buck 1990. List of mosses of North America north of Mexico. Bryologist 93: 448–499. Beever, J., K. W. Allison & J. Child 1992. Mosses New Zealand(ed. 2) 214 pp. Bellolio-Trucco, G. & R. R. Ireland 1990. A taxonomic study of the moss genus Dicranum(Dicranaceae) in Ontario and Quebec. Canad. J. Bot. ?? 867–909.
Name Code: 200219
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Following modified from Plants Database, United States Department of Agriculture
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http://plants.usda.gov/java/profile?symbol=DISC71 ---> https://plants.usda.gov/java/profile?symbol=DISC71
https://plants.usda.gov/java/profile?symbol=DISC71 ---> http://plants.usda.gov/core/profile?symbol=DISC71
http://plants.usda.gov/core/profile?symbol=DISC71 ---> https://plants.usda.gov/core/profile?symbol=DISC71
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Dicranum scoparium Hedw.
dicranum moss

Image of Dicranum scoparium

General Information
Symbol: DISC71
Group: Moss
Family: Dicranaceae
Duration:  
Growth Habit : Nonvascular
Native Status : NA   N
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Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   

Images

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©Michael Lüth. Provided by Michael Lüth . Lüth, M. 2004. Pictures of bryophytes from Europe [CD-ROM] . Published by the author. Usage Requirements .

©Michael Lüth. Provided by Michael Lüth . Lüth, M. 2004. Pictures of bryophytes from Europe [CD-ROM] . Published by the author. Usage Requirements .

©Michael Lüth. Provided by Michael Lüth . Lüth, M. 2004. Pictures of bryophytes from Europe [CD-ROM] . Published by the author. Usage Requirements .

©Michael Lüth. Provided by Michael Lüth . Lüth, M. 2004. Pictures of bryophytes from Europe [CD-ROM] . Published by the author. Usage Requirements .

©Michael Lüth. Provided by Michael Lüth . Lüth, M. 2004. Pictures of bryophytes from Europe [CD-ROM] . Published by the author. Usage Requirements .

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Synonyms

Classification

Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Division Bryophyta – Mosses
Subdivision Musci
Class Bryopsida – True mosses
Subclass Bryidae
Order Dicranales
Family Dicranaceae
Genus Dicranum Hedw. – dicranum moss
Species Dicranum scoparium Hedw. – dicranum moss

Subordinate Taxa

This plant has no children

Legal Status

Wetland Status

Interpreting Wetland Status

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Wildlife

Food

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Cover

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover


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Following modified from Flora of North America
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FNA Vol. 27 Page 22, 23, 30, 38, 399, 402 , 403, 404, 411 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 27 | Dicranaceae | Dicranum

2. Dicranum scoparium Hedwig, Sp. Musc. Frond. 126. 1801.

Dicranum latifolium J. J. Amann

Plants in loose to dense tufts, light to dark green, glossy to sometimes dull. Stems 2-10 cm, tomentose with white to brown rhizoids. Leaves very variable, usually falcate-secund, rarely straight and erect, slightly contorted and crisped when dry, sometimes slightly rugose or undulate, (4-)5-8.5(-15) × 0.8-1.8 mm, concave proximally, keeled above, lanceolate, apex acute to somewhat obtuse; margins strongly serrate in the distal 1 /3 or rarely slightly serrulate; laminae 1-stratose; costa percurrent, excurrent, or ending before apex, 1 /10- 1 /5 the width of the leaves at base, usually with 2-4 toothed ridges above on abaxial surface, with a row of guide cells, two thin stereid bands, adaxial epidermal layer of cells not differentiated, the abaxial layer interrupted by several enlarged cells that form part of the abaxial ridge, not extending to the apices; cell walls between lamina cells not bulging; leaf cells smooth; alar cells 2-stratose, well- differentiated, sometimes extending to costa; proximal laminal cells linear-rectangular, pitted, (25-)47-100(-132) × (5-)7-12(-13) µm; distal laminal cells shorter, broad, sinuose, pitted, (11-)27-43(-53) × (5-)8-12(-20) µm. Sexual condition pseudomonoicous or dioicous; dwarf males on rhizoids of female plants or male plants as large as females; interior perichaetial leaves abruptly long-acuminate, convolute-sheathing. Seta 2-4 cm, solitary, rarely two per perichaetium, yellowish brown to reddish brown. Capsule 2.5-4 mm, arcuate, inclined to horizontal, smooth to striate when dry, yellowish brown to reddish brown; operculum 2-3.5 mm. Spores 14-24 µm.

Capsules mature spring. Soil, humus, humus over rock, decaying stumps and logs, tree bases in dry to mesic woodlands; sometimes bogs, fens and swamps; 50-2900 m; Greenland; Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.W.T., N.S., Nunavut, Ont., P.E.I., Que., Sask., Yukon; Ala., Alaska, Ariz., Ark., Calif., Colo., Conn., Del., D.C., Fla., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Mont., N.H., N.J., N.Mex., N.Y., N.C., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Utah, Vt., Va., Wash., W.Va., Wis., Wyo.; Mexico; Europe; Asia; Pacific Islands (New Zealand); Australia.

Dicranum scoparium is undoubtedly the most polymorphic species of the genus in North America. It is commonly called the broom moss because the leaves are "swept" or turned in the same direction. However, the habit of the leaves varies from strongly falcate-secund, i.e., the swept state, to straight and erect, especially prevalent in northern plants. The leaf shape varies from the typical lanceolate and long-acuminate to the odd ovate-lanceolate and short-acuminate. The leaves are typically smooth, in sharp contrast to the strongly undulate leaves of D. polysetum , but on rare occasion they can be somewhat undulate-rugose. The leaf margins are usually distinctly toothed in the distal 1 /3 but at times plants in some populations have extremely weak serrations, appearing nearly entire. The costae vary in extent from subpercurrent to shortly excurrent. The abaxial surface of the costae have two to four toothed ridges, compared to the two in D. polysetum , but in some forms they are almost nonexistent. The distal areolation of the leaves seems to remain constant in the myriad forms of D. scoparium , the cells being short-sinuose with pitted walls, generally containing conspicuous oil-drops.

Plants growing in arctic North America and those in extremely wet habitats, such as bogs, often have a different superficial appearance. The leaves are straight, erect, ovate-lanceolate, short-acuminate with weak serrations on the margins, and the abaxial ridges on the costae are poorly developed. Sometimes the plants have distal shoots with abnormal appearing leaves that are shorter and broader than those below. Some of these collections have been referred to Dicranum latifolium , which I consider to be a synonym of D. scoparium . Further field and laboratory studies are required to clarify the taxonomic status of those plants. In the sterile state, large-leaved plants of D. scoparium can be confused with D. majus . The latter is immediately distinguished by a double row of guide cells, instead of the single row in the former, thicker stereid bands, distal cells that are narrower and more elongate and costae that have small teeth or serrulations distally on the abaxial surface instead of the characteristic 2-4 toothed ridges of D. scoparium . When fruiting, the solitary, rarely paired, sporophytes of D. scoparium distinguish it from D. majus , which has multiple sporophytes, 2-5 per perichaetium.

Updated: 2020-05-30 13:00:26 gmt
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