Intermediate grape base

from Wikipedia, the free encyclopedia
Intermediate grape base
Systematics
Class : Agaricomycetes
Subclass : insecure position (incertae sedis)
Order : Chanterelles (Cantharellales)
Family : Grape basidia relatives (Botryobasidiaceae)
Genre : Grape basidia ( botryobasidium )
Type : Intermediate grape base
Scientific name
Botryobasidium medium
Eriksson

The intermediate grape basidia ( Botryobasidium medium ) is a mushroom species from the family of grape basidia relatives (Botryobasidiaceae). It forms resupinate, cobweb-like fruiting bodies that grow on dead wood of deciduous trees and conifers . Their distribution covers a Holarctic area. The anamorphic of the species has been described under the name Haplotrichum medium .

features

Macroscopic features

The intermediate grape basidia has spinous fruiting bodies that grow resupinate (adjoining) to slightly effus (protruding) on ​​their substrate and appear net-like under the magnifying glass. They are 1.25–2 mm thick, white when fresh and turn ivory in color when dry.

Microscopic features

As with all grape basidia , the hyphae structure of Botryobasidium ellipsosporum is monomitic , i.e. it consists only of generative hyphae that branch out at right angles. The basal hyphae are hyaline , narrow (mostly 7.5–9  µm wide) and strongly cyanophilic. The 5–6.5 µm thick subhymenial hyphae are hyaline , short-celled and thin-walled. The species has buckles but not cystids . The six- to eight-pore basidia of the intermediate grape basidia grow in nests, measure 13–22 µm in length, are cylindrical and slightly narrowed in the middle. The spores are broad spindle-shaped to boat-shaped and mostly 10–11.5 × 5–6 µm in size. The spores germinate in conidiophores , on which 15–25 × 5–7 µm large conidia arise.

distribution

The species area of ​​the Intermediate Grape Basidy is Holarctic . It is considered rare and has so far been detected in Europe and North America.

ecology

The intermediate grape basidia is like all grape basidia a deadwood colonizing saprobiont . It was found on rotten trunks of various deciduous and conifer species lying on the ground .

literature