Esculent species: P. acetabulum.

[In Genera 28 to 45, which conclude the first great division, Hymenomycetes, there are no esculent species.]

Division II. GASTEROMYCETES.

Bot. Char. The receptacle a close cavity with or without a hymenium; spores at last free and variously disseminated.

[In Genera 46 to 73 there are no esculent species.]

Genus 74. BOVISTA.[152]

Bot. Char. Peridium papyraceous, furnished with a distinct back, which at length peels off altogether, fertile within; capillitium equal.

Esculent species: B. plumbea.

Genus 75. LYCOPERDON.