White spots on leaves

Two posts about mysterious white spots on leaves posted by @SameerUno n @patilsaheb intrigued me so much that today morning I went out to look for such white spots on leaves. https://microcosmos.foldscope.com/?p=188199 Near a dump I found such white spots on a cucumber-ish plant.  https://t.co/eWcUaPjnvj (2/n)There were 3 hypothesis- @SameerUno thought it looks like pollens,…