heat hot humid Mexico mushrooms nature plant sun wall water waterfall bark lumber mushroom plants polypori polyporus polyporuses rotten timber tree trees backet fungi fungus jack pick up slippery sricky bun Suillus luteus basket cutout isolated forest Gills grass hat poison summer tadstool under hat wild autumn fall HDR log Nyberg sponge sponges toadstool wood danger forests poisonous toadstools yellow India Kanangi Karkala karnataka leathery poroid mushrooms Polypore rotting logs Western Ghats basidiomycete basidiomycetes leaf leaves moss