520 



MUSHROOMS, EDIBLE AND OTHERWISE 



Crucibulum. Titl. 



The peridium consists of a uniform, spongy, fibrous felt, closed by a flat 

 scale-like covering of the same color. 



The sporangia are plane, attached by a cord, springing from a small nipple- 

 like tubercle. 



This genus is distinguished from Cyathus, its nearest ally, by the peridial 

 wall, consisting of two layers only. 



Crucibulum vulgare. Titl. 



The peridium is tan-colored, thick externally nearly even, internally quite 

 even, smooth, shining; mouths of young plants are covered with a thin yellowish 



Figure 444. Crucibulum vulgare. 



Photo by C. G. Lloyd. 



membrane called the epiphragm. When old the cups bleach out and lose their 

 yellow color. The peridioles or eggs are white, that is they are covered with a 

 white membrane. Their yellowish color, and white eggs will readily distinguish 

 this species. 



They are found on decayed weeds, sticks, and pieces of wood. The specimens 

 in the halftone grew on an old mat and were photographed by Mr. C. G. Lloyd. 



