hehehe....male cone...hehehehe
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love the look of these(

the PLANT I mean!) but they are a bit of a bitch to keep, either they do wonderfully and then all of a sudden POOF and they're sick. ugh. ditto to what Jake said tho, don't like too much or too little water...as I said, a bitch!
just another thought...have you checked the underside of the leaves to see if any little critters are sucking out the chlorophyll causing the spots? just a thought....