Porellaceae

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Porellaceae
Porella platyphylla

Porella platyphylla

Systematics
Empire : Plants (Plantae)
Department : Liverworts (Marchantiophyta)
Class : Jungermanniopsida
Subclass : Jungermanniidae
Order : Porellales
Family : Porellaceae
Scientific name of the  order
Porellales
Schljakov
Scientific name of the  family
Porellaceae
Cavers

Porellaceae (German Kahlfruchtmoose ) are a moss family from the class of the Jungermanniopsida .

Origin of name

The name (Greek poros = pore, hole) comes from the first person to describe it , Dillenius , who mistakenly described the spore capsule as having small pores. Another explanation is that the shoots appear perforated when viewed from below through the lower leaf lobes.

features

They are mostly strong plants with single to triple pinnate branches. The flank leaves are divided into two lobes to the base; the upper lobe is elliptical to circular and mostly convex, the lower lobe is much smaller and more or less parallel to the trunk. Lower leaves are present, they are usually larger than the lower lobes of the flank leaves. All leaf lobes can have entire margins, toothed or ciliate.

The gender distribution is diocesan . The gametangia stands are at the end of short side branches. Male gametangia stands are short spike-shaped. The large perianthia are bulbous below, obtuse triangular above and gradually narrowed or wide-mouthed; the capsule is egg-shaped to spherical, the spores are papilose and 24 to 80 micrometers in size. Vegetative propagation is unknown.

Systematics

According to Frey, Fischer & Stech (as of 2008), the family comprises three genera:

  • Ascidiota with only one species of Ascidiota blepharophylla
  • Macvicaria with only one species of Macvicaria ulophylla
  • Porella with around 80 species.

According to a more recent (2016) publication, Macvicaria ulophylla is incorporated into the genus Porella ( Porella ulophylla ). The Porellaceae family now only contains the two genera

Here the number of Porella species is given as 85.

swell

  • Nebel, Philippi: Die Moose Baden-Württemberg Volume 3 . 1st edition, Ulmer Verlag, 2005, ISBN 3-8001-3278-8 , p. 384
  • Wolfgang Frey, Eberhard Fischer, Michael Stech: Bryophytes and seedless Vascular Plants . In: Wolfgang Frey (Ed.): Syllabus of Plant Families - A. Engler's Syllabus of Plant Families . 13th edition. Vol. 3, Borntraeger, Berlin / Stuttgart 2009, ISBN 978-3-443-01063-8 , p. 88

Web links

Commons : Porellaceae  - collection of images, videos and audio files

Individual evidence

  1. ↑ http://www.swissbryophytes.ch/index.php/de/names?taxon_id=nism-377
  2. ↑ Ruprecht Düll, Barbara Düll-Wunder: Determine mosses simply and reliably . Quelle & Meyer Verlag, Wiebelsheim 2008, ISBN 978-3-494-01427-2 , p. 197
  3. ↑ Wolfgang Frey, Eberhard Fischer, Michael Stech: Bryophytes and seedless Vascular Plants . In: Wolfgang Frey (Ed.): Syllabus of Plant Families - A. Engler's Syllabus of Plant Families . 13th edition. tape 3 . Borntraeger, Berlin / Stuttgart 2009, ISBN 978-3-443-01063-8 , pp. 88 .
  4. ^ Lars Söderström in World checklist of hornworts and liverworts (2016); https://phytokeys.pensoft.net/article/6261/