Aneuraceae

Aneura pinguis

The Aneuraceae are a family of the order of Aneurales, a group of liverworts with easy- finished buildings thallus. The family includes 4 genera and about 195 species.

Features

The thalli are mehrzellschichtig without clearly distinct midrib and are few and irregularly branched or regularly simply pinnate to three times. Oil bodies are usually ones begin in all or at least some present, rarely absent. 1-3 large or numerous small oil bodies per cell either present. The gametangia are formed on narrow, short side branches. The calyptra is large, club-shaped, fleshy, mehrzellschichtig and often papillose. A Pseudoperianth missing. The Seta is long. The sporangium is ovoid to cylindrical and has a zweizellschichtige wall. Elaters and Elaterenträger are available. Spores are unicellular and 9 to 26 microns in size. The plants are dioecious or monoecious.

System

The family includes four genera worldwide, three of which occur in Europe.

  • Aneura with about 15 species
  • Cryptothallus 2 styles
  • Lobatiriccardia 5 species occurring only in Asia and Australia
  • Riccardia with about 175 species
64233
de