Black Knot
Black Knot
Apiosporina morbosa
Fungi
COMMON

Stats

Lifespan
Perennial
Size
Small
Diet
Decomposer
Biome
Temperate forest
Range
North America
Movement
Sessile
Breeding
Spores
Defense
Armor
Status
Common

About

This fungus grows as hard, black lumps on the branches of cherry and plum trees. It secretes enzymes to digest wood, eventually forming a hollow shell that houses insects.

Life cycle

  1. 1.
    spore
    A microscopic spore drifts on air or water and germinates where moisture and substrate meet.
  2. 2.
    mycelium
    A thread-like mycelium spreads through the substrate, breaking it down into nutrients.
  3. 3.
    fruiting body
    A mature fruiting body emerges to release the next generation of spores.

Learn more

Taxonomy

Kingdom
Fungi
Phylum
Ascomycota
Class
Dothideomycetes
Order
Venturiales
Family
Venturiaceae
Genus
Apiosporina
Species
Apiosporina morbosa