B 



/ 



'*&* w* 



X «** 





•*f 



Fig 



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7 



164. — Sphaerobolus stellatus. Discharge of glebae with the help of a pin. 

 A, a piece of cow-dung plat kept moist in the laboratory, ten days after 

 it had been collected in a meadow at the Manitoba Agricultural College, 

 Winnipeg : a, mycelium ; b, young fruit-bodies ; c, older fruit-bodies 

 which opened next day ; d, four fruit-bodies which have opened stellately 

 and have thus exposed their glebae in preparation for their discharge ; 

 e e, fruit-bodies which have already discharged their glebae and now show 

 their everted inner wall-membrane. B, the same as A, after an interval 

 of about two minutes. In this interval the pin/ was pushed in succession 

 between the outer and inner wall-membranes of all the four fruit-bodies 

 shown at d in A, with the result that the guns discharged their pro- 

 jectiles : the everted inner wall -membranes are shown at g in B. 

 Photographed in the morning between 11 a.m. and noon. Natural size. 



