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Scanning electron micrographs of: (i,ii) Lake Cave moonmilk; (iii,iv) Lake Cave stalagmite; (v,vi) Lake Cave stalactite; (vii,viii) Moondyne Cave stalagmite; (ix,x) Mammoth Cave stalagmite and (xi,xii) Mammoth Cave stalactite (Arrows indicate hyphal networks and microborings) at lower and higher magnifications.
