Hille stain

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Spore with hilar stain, the hilar stain is the flattened area

The Hilarfleck is in certain spores of some fungi an indentation or more or less clearly demarcated smooth, or significantly weaker ornamented location above the Apiculus (hilum) on the ventral side of the spore. In addition to the term Hilarfleck, which is often used in German, there are a number of other terms such as: Suprahilarfleck (actually more correct), suprahilar or supraapicular depression . In English and French literature, the term plague is mostly used, which was introduced by Romagnesi .

It is assumed that the hilly spot arises from the fact that the neighboring spores, which adhere to a base die, touch at this point, so that the ornament is less developed or, if the spores press harder on one another, even dented.

The hilly spot is an important determinant of milklings and deafblings . It can be inamyloid or partially or completely amyloid . If it is partially amyloid, it can be in the middle or on the edge. An amyloid hilarity does not have to be the same for all spores, if half of the spores can be stained, they are called amyloid.

literature

  • Maria Teresa Basso: Lactarius Pers (=  Fungi Europaei . Band 7 ). Mykoflora, Alassio (Savona) 1999, ISBN 88-87740-00-3 , p. 46 (Italian).
  • Jacob Heilmann-Clausen, Annemieke Verbeken, Jan Vesterholt: The genus Lactarius (=  Fungi of Northern Europe . Band 2 ). Danish Mycological Society, Greve 1998, ISBN 87-983581-4-6 , pp. 19-21 (English).
  • H. Wollweber, R. Holm: Investigations on the spores of higher fungi in the scanning electron microscope . In: Hermann Jahn (Hrsg.): Westphalian mushroom letters . tape 8, 1970/1971 , pp. 180–90 ( gwdg.de [PDF; 1.1 MB ]).