154 MUSHKOOMS. 



Outside covering opening with a torn 



mouth, Nidularia, bird's-nest. 



4. Outer covering splitting into star-like 



points, Geaster, earth star. 



Outer covering opening by a single 



mouth at the top, Lycoperdon, puflf-ball. 



Spores at first borne in an egg-like 



sac, when ripe elevated on a cap 



at the top of the stem, no veil, 



has an odious smell. Phallus, stink-horn fungus. 



SECTION B. 



1. Where the sacs soon become free, no 



special covering, mostly fleshy, 

 cup-like fungi, Peziza, cup fungus. 



Sacs opening from the first, caps pitted 



orfiirrowed, 2. 



2. Cap lobed, irregular, saddle-shaped, 



Helvella, yellowish fungus. 

 Cap oval or conical, upper surface with 

 deep pits formed by long ridges, 



Morchella or Morel, honey-combed fungus. 



(The genera described under Section B. all belong to the 

 order of Discomycetes, fungi that have the spore sacs collected 

 in a flattened disc.) 



