510 



MUSHROOMS, EDIBLE AND OTHERWISE 



Pcziza tuber osa. Bull. 

 The Tuberous Peziza. 



Tuberosa, furnished with a tnber or sclerotium. The cup is thin, infundi- 

 buliform, bright brown, turning- pale. 



The stem is elongated, springing from an irregular black tuber, called 

 sclerotium. The stems run deep into' the earth and are attached to a sclerotium, 

 which will be seen in the halftone. Many fungus plants have learned to store 

 up fungus starch for the new plant. 



Figure 434. Peziza tub 



Natural size. 



The sporidia are oblong-ellipsoid, simple. It is called by some authors 

 Sclerotinia tuberosa. It grows on the ground in the spring and may be known 

 by its bright brown color and its stem running deep into the earth and attached 

 to a tuber. 



Peziza hemisphericQ. IVigg. 



Sessile, hemispherical, waxy, externally brownish, clothed with dense, 

 fasciculate bairs ; disk glaucous-white. This is called by Gillet Lachnea hemis- 

 pherica. The cups are small, varying much in color and the sporidia are 

 ellipsoidal. They are found on the ground in September and October. Found 

 in Poke Hollow. 



