bids are invited for cycas coralloid root , cycas male cone , cycas megasporophyll , fossil stone calamites stem , fossil stone annularia , fossil stone cordaites leaf , fossil stone pterophyllum , model for explaining timbers or woods , urticularia insectivorous plant , drosera insectivorous plant , pitcher plant insectivorous plant , dionea insectivorous plant , epiphytic root orchid , pneumatophore root , root nodules , phylloclade of ruscus , cladode of asparagus , hydrilla , eichornia , pistia , vallisneria , nymphea , lichen apothecia , lichen usnea , lichen parmelia , lichen cladonia , wilt disease of potato , leaf spot of mango , tikka disease of groundnut , wilt of cotton , powdery mildew of barley , blast disease of rice , leaf curl of papaya , yellow vein disease of bhindi , bunchy top banana , leaf spot of mango , red rot of sugarcane , bacterial blight of paddy , little leaf of brinjal , citrus canker , late blight of potato , white rust of crucifer , red stripe of sugarcane , soft rot of apple , tobacco mosaic virus tmv