Arcyria

Arcyria denudata, type species of the genus

Arcyria is a genus of slime molds from the order of Trichiida. It counts with some of their types to the geographically and ecologically widespread species in general, and includes over 25 species.

Features

The most sociable occurring, stalked to stalkless fruiting bodies are sporangia (also called sporocysts ) of mostly egg-shaped to nearly cylindrical, rarely spherical, club- or pear-shaped figure. The stem is filled with spore- like cells. The peridium is membranous, usually transparent, in some species may be absent. The approach of the peridium is usually delineated clearly as disk- to funnel-shaped calyx and engages only in some species occasionally as cloth or spot in the scalp into it.

The densely reticulated scalp is slightly to strongly yielding, after ripening it expands enormously. It is either grown over the entire surface of the chalice with this and this remains so arrested or is just in the middle of the cup connected with this and breaks there. The scalp is diverse in relief, in the form of rings, half rings, horizontal stripes, spines, spiral bands or comb or net- like structures.

The spores are always uniformly colored as spore mass, colorless or pale only in transmitted light. They are round and measure 7-10 microns in diameter, their surface is smooth, irregularly warty or finely prickly, rarely find themselves weak, net-like structures.

Dissemination

The genus Arcyria is distributed worldwide and is considered one of the world's most common slime mold species, some Arcyria species ( Arcyria cinerea, Arcyria denudata, Arcyria incarnata, Arcyria nutans ) also include the range of their habitats to the most common slime mold species at all.

Systematics and history of research

The genus was first described in 1780 by Friedrich Heinrich Wiggers, type species is the 1753 still denudata by Carolus Linnaeus as Clathrus denudatus Arcyria described. The 1875 introduced by Jozsef Tomasz Rostafinski division into two subgenera Clathroides and Arcyrella is no longer recognized by modern editors. The genus includes about twenty-five species, including:

  • Arcyria abietina
  • Arcyria affinis
  • Arcyria cinerea
  • Arcyria corymbosa
  • Arcyria denudata
  • Arcyria fasciculata
  • Arcyria ferruginea
  • Arcyria globosa
  • Arcyria helvetica
  • Arcyria incarnata
  • Arcyria insignis
  • Arcyria leiocarpa
  • Arcyria magna
  • Arcyria major
  • Arcyria minuta
  • Arcyria nepalensis
  • Arcyria obvelata
  • Arcyria oerstedtii
  • Arcyria oerstedtioides
  • Arcyria pomiformis
  • Arcyria stipata
  • Arcyria versicolor

Evidence

Footnotes directly after a statement prove the single statement, footnotes directly after a punctuation mark the entire preceding sentence. Footnotes behind a vacancy refer to the entire preceding paragraph.

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