Bui. 175, U. S. Dept. of Agriculture. 



Plate IX. 



Fig. 1 .—Armillaria ventricosa (Young Specimen: 





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IbEv> : 



^ illlM 







^ifli ^b^^ ~v- 



•« it'll rB ml/ If //L 





.- 







l ^B A 



















B ' f .yj 







Fig. 2.— Armillaria ventricosa 'Mature Specimen). 



