Funaria hygrometrica

Wetteranzeigendes rotation moss ( Funaria hygrometrica )

The Wetteranzeigende rotation moss ( Funaria hygrometrica ), also known as True rotational moss, is a pioneer moss, the nutrient-rich, disturbed sites can settle quickly. The species is autoecious ( antheridia and archegonia at different branches on the same plant ).

It is considered synanthropic of people and is one of the physiologically most studied mosses. The name refers to the hygroscopic Seta, the jerkily rotating at rainfall, or when dehydration. This is to promote the spread of spores.

Features

The Wetteranzeigende rotation moss grows in groups or in extended more or less dense lawn. It forms pale green, or dirty green to yellowish green, bud-shaped plants. The shoots are not longer than 15 mm. The leaves are at the top bud shaped along inclined hollow, ovate lanceolate to spatulate - are oval, shortly acuminate. Rarely, these have a very short exiting rib else ending in the blade tip. The male plants form at the top of the leaf rosette antheridia. The lamina cells are rectangular or elongated hexagonally shaped, about 50 to 100 microns long and 25 to 50 microns wide. In the upper part of the leaf they are at least rectangular, but never roundish. The up to 4 cm long Seta is erect, or slightly curved and tortuous at the top to rotate. The asymmetrical, curved capsules are inclined or hanging crooked pear-shaped, dry clear furrowed and brownish in color. They have a long neck. The peristome is double trained and always well developed. The dome-shaped capsule cover has no top on, is smooth and sits at the base of the capsule on the annulus. The hood -shaped calyptra is beaked and sits crooked on the capsule. The usually smooth spores are on average about 12-22 microns in size. Sporogone are always abundant. The maturity can take place throughout the year.

Distribution and location

The Wetteranzeigende rotation moss is spread worldwide. In Central Europe it is a common moss. It settled an open, nutrient-rich, mostly light- rich, fresh to moist locations and prefers sandy, clay or clayey soil, humus, peat, gravel or gravel. Natural sites are apparently burns and muddy riverbanks. Otherwise, it is especially in disturbed ruderal, on dumps, rubbish dumps, in gardens and to find strong agricultural fields. The deposits are mostly unstable and short-lived.

The True rotational moss is parasitized by Glattsporigen moss bristle Ling ( Neottiella hetieri ).