NATIONAL ACADEMY OF SCIENCES OF UKRAINE
State Museum of Natural History
Biodiversity Data Centre

Atrichum undulatum (Hedw.) P. Beauv.

Synonym
  • Polytrichum undulatum Hedw
Vernacular Name
Common Smoothcap
Images
Conservation status
No status defined
Value of species
Remarks
Detail
Plants small to fairly large, dark green. Stems 5-10 cm. Leaves sparse below, more crowded above, 4-9 × 0.8-1.5 mm, lingulate to lanceolate, undulate, keeled distally, concave to flat proximally, with oblique rows of abaxial teeth on undulations, the apex acute; costa percurrent, with teeth on abaxial surface in distal half; lamellae 2-6, 2-4(-7) cells high; median leaf cells 20-32 µm wide, irregularly angled to hexagonal, sometimes rounded, often transversely elongate, convex on both surfaces, smooth or with minute, verrucose or striate papillae on abaxial surface, walls firm, strongly collenchymatous with trigones. Sexual condition polygamous, some shoots bisexual, others apparently male or female; perigonial bracts broad, forming antheridial buds, often several buds per plant. Seta 1(-3) per perichaetium, 1-3 cm, reddish brown. Capsule 2-4(-8) × 0.5-1 mm, curved to distinctly arcuate, almost horizontal; operculum 2-3 mm. (Flora of North America)
Book reference
  • Кузярін А.Т. Мохоподібні (Marchantiophyta, Bryophyta) території торфовища "Білогорща" (Розточчя) // Наукові записки Державного природознавчого музею. - Львів, 2010. - 26. - С.113-122.
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  • Рабик І.В., Данилків І.С. Мохоподібні (Hepaticophyta, Bryophyta) болота Немирів // Наукові записки Державного природознавчого музею. - Львів, 2008. - 24. - С.115-126.
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Experts

Taxonomic branch

Biota
Eukaryota
Plantae
Viridiplantae
Bryophyta
Polytrichopsida_unranked_taxon
Polytrichopsida
Polytrichales
Polytrichaceae
PARTNERS