Lindbladia tubulina
| Lindbladia tubulina | ||||||||||||
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Black Plasmodium from Lindbladia tubulina |
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| Scientific name of the genus | ||||||||||||
| Lindbladia | ||||||||||||
| Fr. | ||||||||||||
| Scientific name of the species | ||||||||||||
| Lindbladia tubulina | ||||||||||||
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Lindbladia tubulina is a slime mold from the order of the Liceida and the only representative of its genus .
features
The plasmodium is sepia-colored, brown-black or black. The fruiting body is usually pseudoaethalioid , occasionally up to aethalioid or rarely sporangiate , but then forming dense groups and mostly sessile, rarely petiolate. The individual sporangia are cylindrical and form a spot-shaped to pillow-shaped aethalium with a diameter of 1 to 25 centimeters and a thickness of 2 to 10 millimeters. Its thickened, black or dark brown outer skin consists of incompletely developed peridial walls and spores and covers the ocher to olive brown interior. Their sculpting ranges from slight roughness to clearly outwardly curved, spherical ends of the individual sporangia, which have a diameter of 0.4 to 0.8 millimeters.
The distinct, spongy hypothallus is occasionally membranous, but often multilayered and forms a continuous subsurface for the fruiting body. The peridium is a shimmering, continuously membranous layer. It is smooth on the outside, partly smooth, partly veined and mostly irregularly covered with small depressions that have a diameter of 0.4 to 0.8 micrometers and may be thickened at the edge. Dictydine granules are found in the form of dark or colorless globules, they have a diameter of 0.8 to 1.8 micrometers.
A scalp or pseudocapillitium is absent. The spores are ocher to olive-brown as a spore mass and pale in color in transmitted light . Round and 5 to 7 microns in diameter, dictydine granules are usually absent. Their surface is sculptured with burrs and thus partially forms a network-like structure, in the light microscope they appear finely spiked.
distribution
Lindbladia tubulina is widespread, evidence can be found from Ceylon, Japan, in North America from Canada to Texas, and in Europe from Scandinavia to Portugal. There are no finds in the Neotropics . Many specimens were found on dead wood, brushwood or the needles of conifers, more rarely on deciduous wood. Depending on the season, they can be found from late spring (April) to early autumn (October).
Research history and etymology
The species was first described by Elias Magnus Fries in 1849 . A collection from Södermanland in Sweden from 1845 by Matts Adolf Lindblad (1821–1899), who is honored with the generic name, serves as the holotype . The specific epithet tubulina refers to the tubular sporangia that make up the pseudoaethalium.
At times other species were described, but these are mostly all synonymous , so that the genus is monotypical today.
proof
Footnotes directly behind a statement cover the individual statement, footnotes directly behind a punctuation mark the entire preceding sentence. Footnotes after a space refer to the entire preceding paragraph.
- ↑ a b c d e f Takami Hatano, Howard J. Arnott, Harold W. Keller: The Genus Lindbladia. In: Mycologia, Vol. 88, No. 2, pp. 316-327, 1996
