Hilarappendix

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two basidia with four basidiospores each.

The lower (basal) part of the basidiospore with which it sits on the sterigma is referred to as the hilar appendix (plural hilar appendices or hilar appendices ) . Another name for it is the Latin word Apiculus , which is mainly used in German-speaking mushroom literature.

The stand mushrooms (Basidiomycetes) form bulbous cells in their lamellae, the so-called basidia , on these cells usually four basidiospores arise through constriction. These are connected to the basidia by an often very thin stem, the sterigma . When the spores are ripe, they are actively thrown off or break off this “stalk” and fall to the ground. If they are caught by the wind, they can also be spread over long distances. At the point of attachment where the spore was connected to the sterigma, a small, mostly conical attachment, the hilar appendix (spore appendage), remains. It can also be used to tell under the microscope that a single spore originates from a Basidiomycete.

Basidiospore with hilar appendix, schematic.

The microscopic examination of the hilar appendix often provides important information when identifying a fungus, as its shape, size or texture is often typical of the species or genus.

source

Individual evidence

  1. ^ Pringle et al .: The captured launch of a ballistospore. Mycologia, 97 (4), 2005, pp. 866-871. ( Memento of the original from September 24, 2015 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.oeb.harvard.edu