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Andreaea blyttii Schimper [family ]

Date Updated: 23 July 2012

Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 27,
Names
Andreaea blyttii Schimper [family ], in P. Bruch and W. P. Schimper, Bryol. Europ., 6: 155, plate 635. 1855,
Information
Plants brown to black. Leaves erect, curved or secund, becoming subulate from an ovate or narrow-rectangular base, widest in proximal half of leaf, apex symmetric; costa present, percurrent and filling the leaf apices, strong, terete, usually reaching the leaf insertion; leaf margins entire or crenulate; basal laminal cells rectangular, walls thin and straight; medial laminal cells usually quadrate, 1-stratose or rarely 2-stratose juxtacostally, lumens rounded-quadrate; laminal papillae rare. Sexual condition dioicous; perichaetial leaves differentiated, convolute-sheathing. Spores (10–)13–15(–20) µm.
Altitude range
low to high elevations;
Distribution
Greenlandn Europen AsiaAtlantic Islands (Iceland).USA AlaskaUSA Calif.USA Oreg.USA Wash.Canada B.C.Canada Nfld. and Labr.Canada N.W.T.Canada NunavutCanada Que.. Yukon
Discussion
Andreaea blyttii is distinguished by leaves with long, narrow subula, nearly filled with the strong costa, and rectangular basal cells, and small spores. Collections commonly lack sporophytes. Distal laminal cells may be minutely mammillose abaxially, and the leaf margins are thus crenulate.

Date Updated: 23 July 2012

Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 27,
Names
Andreaea blyttii Schimper [family ], in P. Bruch and W. P. Schimper, Bryol. Europ., 6: 155, plate 635. 1855,
Information
Plants brown to black. Leaves erect, curved or secund, becoming subulate from an ovate or narrow-rectangular base, widest in proximal half of leaf, apex symmetric; costa present, percurrent and filling the leaf apices, strong, terete, usually reaching the leaf insertion; leaf margins entire or crenulate; basal laminal cells rectangular, walls thin and straight; medial laminal cells usually quadrate, 1-stratose or rarely 2-stratose juxtacostally, lumens rounded-quadrate; laminal papillae rare. Sexual condition dioicous; perichaetial leaves differentiated, convolute-sheathing. Spores (10–)13–15(–20) µm.
Altitude range
low to high elevations;
Distribution
Greenlandn Europen AsiaAtlantic Islands (Iceland).USA AlaskaUSA Calif.USA Oreg.USA Wash.Canada B.C.Canada Nfld. and Labr.Canada N.W.T.Canada NunavutCanada Que.. Yukon
Discussion
Andreaea blyttii is distinguished by leaves with long, narrow subula, nearly filled with the strong costa, and rectangular basal cells, and small spores. Collections commonly lack sporophytes. Distal laminal cells may be minutely mammillose abaxially, and the leaf margins are thus crenulate.
Andreaea blyttii Schimper [family ]
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