What does geastrum mean?

Definitions for geastrum

Here are all the possible meanings and translations of the word geastrum.

Princeton's WordNet

  1. type genus of Geastraceae; fungi whose outer peridium when dry splits into starlike segments


  1. Geastrum is a genus of mushroom in the family Geastraceae. Many species are known commonly as earthstars. The name comes from geo meaning earth and aster meaning star. The name refers to the behavior of the outer peridium. At maturity, the outer layer of the fruiting body splits into segments which turn outward creating a star-like pattern on the ground. The inner peridium is a spore sack. In some species, the outer peridium splits from a middle layer, causing the spore sack to arch off the ground. If the outer peridium opens when wet and closes when dry, it is described as hygroscopic. In some species, the inner peridium is borne on a stalk or pedicel. The columella is a column-like clump of sterile tissue to be found inside the inner peridium. The network of fertile tissue inside the inner peridium, the capillitium, arises from the columella. The mouth in most species of "earth-stars" is quite prominent, often arising as a small cone at the apex of the inner peridium. It may be even or sulcate.

Matched Categories


  1. The numerical value of geastrum in Chaldean Numerology is: 1

  2. The numerical value of geastrum in Pythagorean Numerology is: 5

Images & Illustrations of geastrum