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Didymodon norrisii
Life   Plantae   Bryophyta   Pottiaceae   Didymodon


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Didymodon norrisii R.H. Zander


General Information
Symbol: DINO3
Group: Moss
Family: Pottiaceae
Duration:  
Growth Habit :  
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   

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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 Pottiales
Family Pottiaceae
Genus Didymodon Hedw. – didymodon moss
Species Didymodon norrisii R.H. Zander

Subordinate Taxa

This plant has no children

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Wetland Status

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Source Large Mammals Small Mammals Water Birds Terrestrial Birds

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 | Family List | FNA Vol. 27 | Pottiaceae | Didymodon

7. Didymodon norrisii R. H. Zander, Bryologist. 102: 112, figs. 1-11. 1999.

Plants in nature red-brown, brick or rose red or occasionally blackened distally, red-brown to tan proximally. Stems 1-1.5 cm, central strand present. Stem leaves appressed when dry, spreading and not keeled when moist, monomorphic; ovate to ovate-lanceolate, adaxial surface broadly concave across leaf and sometimes narrowly channeled near apex, 1.2-1.5 mm; base weakly differentiated in shape, broadly ovate, sheathing at insertion; margins recurved in lower 2 /3- 3 /4, minutely crenulate by projecting cell walls; apex acute to short-acuminate, occasionally broken off; costa percurrent, strong, often weakly spurred, without an adaxial pad of cells or this weakly developed, adaxial cells quadrate from apex to near insertion, in 6-10 rows, guide cells in 2 layers; basal laminal cells not differentiated or of 2-5 rows of slightly larger cells, walls of basal cells evenly thickened, quadrate to short-rectangular; distal laminal cells 9-13 mm wide, 1:1(-2), often transversely elongate near proximal leaf margins, papillae of 2-4 hemispherical salients per cell or essentially absent and cells appearing broadly mammillose, lumens rounded-quadrate to ovate, walls evenly thickened and convex on both sides of lamina. Specialized asexual reproduction by fragile foliose stem tips. Seta 1. 1-1.4 cm. Capsule 1.5-2 mm; peristome teeth apparently absent or rudimentary. Spores 10-13 µm. Distal laminal KOH reaction deep brick or rose red.

Capsules mature May. Rock, outcrops, calcareous and volcanic boulders, fields, cliffs, runoff areas; low to moderate elevations (200-1500 m); B.C.; Calif., Oreg.

Didymodon norrisii is known only from four localities—California, one station each in Oregon and coastal British Columbia—and is quite distinctive. In addition to the characters given in the description, the leaves are reflexed above a very short-sheathing basal collar, the abaxial cells are quadrate in distal 4 /5 of leaf, the costal transverse section is rounded-elliptical, the adaxial stereid band is absent, and there are 5-6 guide cells (4 in an abaxial layer and 1-2 in a second, adaxial layer). Sporophytes are uncommon, and the short-conic operculum is of cells in nearly straight rows.

Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Didymodon+norrisii&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Didymodon+norrisii&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

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Number of matches : 3
Query: SELECT * FROM img WHERE ready=1 and taxon like "Didymodon norrisii%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Didymodon norrisii
Didymodon norrisii
ID: 0000 0000 0213 2637 [detail]
© 2013 Scot Loring

Didymodon norrisii
Didymodon norrisii
ID: 0000 0000 0313 4122 [detail]
© 2013 Scot Loring

Didymodon norrisii
Didymodon norrisii
ID: 0000 0000 0313 4123 [detail]
© 2013 Scot Loring

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