Oligoporus
Dripped Saftporling ( Oligoporus guttulatus )
Oligoporus is a fungal genus in the family Stielporlingsverwandten. The genus is known among others in the German-speaking countries as " Saftporlinge ". Some species are called because of their side fruit forms which disintegrate to powdery chlamydospores also " Mehlstaubporlinge ".
The type species is the Yellow Saftporling (O. rennyi ).
- 5.1 Notes and references
Features
Macroscopic characteristics
Oligoporus forms annuals and mostly sedentary, rarely slightly stalked fruiting bodies with a poroiden hymenophore. They take the form of cones lie flat on the substrate at or combine both growth forms together. Fresh they are soft fleshy and juicy ( hence the name ), however, dry brittle to hard. They show predominantly bright colors.
Microscopic characteristics
The Hyphenstruktur is monomitisch. The fruiting bodies consist of colorless, thin - walled up and tighten bearing hyphae. With the addition of Kresylblau adopt a different color than the colorant. The basidia are 4- sporig and have at the base of each one buckle. The thin-walled, smooth and colorless basidiospores are cylindrically curved to elliptical and can not in most species stained with iodine solution. Zystiden or Zystidiolen may occur or missing.
Ecology
The majority of the species growing in coniferous wood, some of hardwood. They cause a brown rot in wood, can thus only the carbohydrate content of the wood such as break down cellulose, but not the pulp lignin.
Species
In Europe, 35 species occur in the broader sense or are required to be expected there.
Bitter Saftporling Oligoporus stipticus
Dripped Saftporling Oligoporus guttulatus
Relationship and systematics
From Oligoporus recently the genera Postia, Rhodonia and Spongiporus were cleaved. These were previously treated with one another interchangeably.
→ See also: Saftporling