Conostomum tetragonum

Conostomum tetragonum
	In Austria
Scientific classification
Kingdom:	Plantae
Division:	Bryophyta
Class:	Bryopsida
Subclass:	Bryidae
Order:	Bartramiales
Family:	Bartramiaceae
Genus:	Conostomum
Species:	C. tetragonum
Binomial name
	Conostomum tetragonum; (Hedw.) Lindb.

Conostomum tetragonum, or helmet-moss, is a species of bryophyte found in Europe.^[1]

Shoots grow to a maximum height of 2 cm. Leaves are shaped like narrow spearheads and sharply pointed. Capsules are nearly spherical and 2mm long.^[2]

It thrives in acidic, rocky mountain soils, especially where there is snow cover for a large part of the year, and on summit ridges.^[2] It grows in continental Europe and in Scotland.^[3] This species became extinct in England in the 1950s.^[4]

References

^ "Oldstyle id: 1709125580998f7d07a911b73352a2aa". Catalogue of Life. Species 2000: Leiden, the Netherlands.
^ a b "Royal Botanic Garden Edinburgh - Conostomum tetragonum" (PDF).
^ "British Bryological Society". www.britishbryologicalsociety.org.uk. Archived from the original on 2019-05-31. Retrieved 2019-07-25.
^ "The Species Recovery Trust - Lost Life". www.speciesrecoverytrust.org.uk. Archived from the original on 2019-04-28. Retrieved 2019-07-25.

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[1] "Oldstyle id: 1709125580998f7d07a911b73352a2aa". Catalogue of Life. Species 2000: Leiden, the Netherlands.

[auto-2] "Royal Botanic Garden Edinburgh - Conostomum tetragonum" (PDF).

[3] "British Bryological Society". www.britishbryologicalsociety.org.uk. Archived from the original on 2019-05-31. Retrieved 2019-07-25.

[4] "The Species Recovery Trust - Lost Life". www.speciesrecoverytrust.org.uk. Archived from the original on 2019-04-28. Retrieved 2019-07-25.