476 



LYCOPERDACEjE 



Ly coper don 



2011. L. Cookei Mass. (after Dr. M. C. Cooke) a c. 



Subglobose or flattened below and hemispherical, abruptly con- 

 tracted into a short stem, minutely furfuraceous, smoky-brown, 

 umber-salmon or umber with a faintly purplish shade. St. pale 

 spongy- cellular within. Cap. and Spores yellow- to olive-umber. 

 Gregarious. Sept. \\ x I in. Like a small form of 2071. 



CXVI. BOVISTA Pers. 



(From the German popular name, bofist, a fairy ball.) 



Peridium double, external layer or cortex smooth, fragile, deci- 

 duous, not remaining as adnate warts, except in 2C81 and 2083. 



Fig. 132. — A, B, Bovista nigrescens Pers., entire and in section. One-half natural size. 

 c, spores. X 750. D, thread of capillitium. X 100. 



usually falling away in flakes, inner layer smooth, dehiscing by a 



definite or irregularly torn apical stoma. Sterile base absent. 



Spores globose or elliptical. (Fig. 132.) Species 2078 — 2084 



Spores globose. 2078 — 2083 



Spores elliptical. 2084 



